LINOVISION AM7 LoRaWAN Indoor Air Quality Ambience Monitoring Sensor User Guide

LINOVISION AM7 LoRaWAN Indoor Air Quality Ambience Monitoring Sensor

Specifications

• Model : IOT-S500AM Series

Model Descriptions

• AM7 : Indoor Ambiance Sensor (Temp, Hum, Light, Motion, CO2, TVOC, Pressure)

• AM9 : Indoor Ambiance Sensor (Temp, Hum, Light, Motion, CO2,
  TVOC, Pressure, PM2.5, PM10)

• AM11: Indoor Ambiance Sensor (Temp, Hum, Light, Motion, CO2, TVOC, Pressure, PM2.5, PM10, HCHO/O3)

Power Supply

• ER14505 Li-SOCl2 Batteries (AM7 / 9 Only)
• Power Adapter (AM11 Only)

Safety Precautions

Linovision will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide. The device must not be disassembled or remodeled in any way. In order to protect the security of the device, please change the device password when first configuration. The default password is 123456. Do not place the device outdoors where the temperature is below/above the operating range.

Declaration of Conformity
The AM300 series is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.

Indoor Ambiance Monitoring Sensor

Featuring LoRaWAN® IOT-S500AM Se ries

User Guide

Applicability
This guide is applicable to AM300 series sensors shown as follows, except where otherwise indicated.

PM2.5, PM10)
AM11| Indoor Ambiance Sensor (Temp, Hum, Light, Motion, CO2, TVOC, Pressure, PM2.5, PM10, HCHO/O3)

Safety Precautions

Linovision will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide.

• The device must not be disassembled or remodeled in any way.
• In order to protect the security of the device, please change device password when first configuration. The default password is 123456.
• Do not place the device outdoors where the temperature is below/above operating range. Do not place the device close to objects with naked flames, heat source (oven or sunlight), cold source, liquid and extreme temperature changes.
• The device is not intended to be used as a reference sensor, and Milesight will not should responsibility for any damage which may result from inaccurate readings.
• The battery should be removed from the device if it is not to be used for an extended period. Otherwise, the battery might leak and damage the device. Never leave a discharged battery in the battery compartment.
• Make sure all batteries are newest when install, or battery life will be reduced.
• The device must never be subjected to shocks or impacts.
• Do not clean the device with detergents or solvents such as benzene or alcohol. To clean the device, wipe with a soft moistened cloth. Use another soft, dry cloth to wipe dry.

Declaration of Conformity

AM300 series is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.

Product Introduction

Overview
AM300 series is a compact indoor ambience monitoring sensor including motion, humidity, temperature, light, TVOC, CO2, HCHO/O3 level, barometric pressure and PM2.5 & PM10 for wireless LoRa network. It is equipped with NFC (Near Field Communication) and can easily be configured via a smartphone or a PC software.

Sensor data are transmitted in real-time using standard LoRaWAN® protocol. LoRaWAN® enables encrypted radio transmissions over long distance while consuming very little power. The user can obtain sensor data and view the trend of data change through Milesight IoT Cloud or through the user’s own Network Server.

Features

• Robust LoRaWAN® connectivity for indoor or HVAC environments
• Integrated multiple sensors like temperature, humidity, light, air quality, etc.
• Easy configuration via NFC
• Multiple display mode and clear emoticon on the e-ink screen
• Equipped with traffic light and buzzer to indicate threshold
• Standard LoRaWAN® supported
• Milesight IoT Cloud compliant
• Battery or DC power supply

Hardware Introduction

Packing List

If any of the above items is missing or damaged, please contact your sales Representative.

Hardware Overview

E-ink Screen
Screen Description

Note

• AM300 series will update screen data every 1 minute and do a full-screen refresh every 30 minutes (AM11) or 60 minutes (AM7 and AM9) in order to remove ghosting.
• When AM300 series detects the temperature beyond the range from 0°C to 40°C, the screen will close automatically
• Please refer section 4.5.3 for Excellent/Polluted/Bad threshold settings.

Screen Mode Switch
Here are 3 methods to switch between the three modes:

• Power button: When button lock is disabled, quick press the power button to switch the mode.
• Mobile App: Go to Milesight ToolBox App menu “Device > Setting > General Settings” to select screen display mode.
• Software: Go to Toolbox menu “Device Settings > Basic > Basic Settings” to select screen display mode.

Button and Traffic Light

than 3 seconds.

| Power On: Off → On
Power Off: On → Off
Switch Screen
Display Mode| Quick press the power button once.| Blinks once
Reset to Factory

Default

| Press and hold the reset button for more than 10 seconds.| Quickly Blinks
Air Quality Level Indication| Indicate the 3 levels of air quality according to threshold setting. When one of the concentrations of air pollutants of CO2, TVOC, PM2.5, PM10 or HCHO/O3 exceeds the threshold, the light color will change to orange or red| Excellent: Blinks/Always On (Configurable)
Polluted:    Blinks/Always On (Configurable)
Bad: Blinks/Always On (Configurable)

• If the traffic light is disabled, it will not show air quality level indication.
• AM319 supports Traffic Light as Blinking or Always On to indicate Polluted or Bad indoor ambience, while AM307 and AM308 only support Blinking mode.

Dimensions(mm)

Power Supply

1. Release the screw at the back of device and remove the rear cover.

2. Install the batteries or type-C cable to the device. If the device is powered via type-C port, then left or right side should make an opening to pass through the type-C cable.
   

3. Fix the rear cover back to device with the fixing screw.

• AM7 and AM9 can be powered via USB type-C port or by ER14505 Li-SOCl2 batteries. When batteries and external power are both used, external power will be the preferred power supply option.
• AM11 supports powered via USB type-C port only.
• Type-C port can’t be used to charge battery.

Operation Guide

Log in the ToolBo

AM300 series can be monitored and configured via ToolBox App or ToolBox software. Please select one of them to complete configuration.

NFC Configuration

1. Download and install “ToolBox” App from Google Play or Apple App Store.

2. Enable NFC on the smartphone and launch ToolBox.

3. Attach the smartphone with NFC area to the device to read device information. Basic information and settings of the device will be shown on ToolBox App if it’s recognized successfully. You can read and configure the device by tapping the Read/Write device on the App. In order to protect the security of the device, please change password when first configuration. The default password is 123456.

4. Ensure the location of smartphone NFC area and it’s recommended to take off phone case.

5. If the smartphone fails to read/write configurations via NFC, keep the phone away and back to try again.

6. AM300 series can also be configured by dedicated NFC reader, which can be purchased from Linovision IoT.

USB Configuration

1. Download ToolBox softwar.
   Connect the device to a computer via Type-C port.
   

2. Open the ToolBox and select type as “General”, then click password to log in ToolBox.(Default password: 123456)

3.  After logging in the ToolBox, you can click “Power On” or “Power Off” to turn on/off device and change other settings.

LoRaWAN Settings
LoRaWAN settings is used for configuring the transmission parameters in LoRaWAN® network.

Basic LoRaWAN Settings
Go to “LoRaWAN Settings -> Basic” of ToolBox software or “Device -> Settings -> LoRaWAN Settings” of ToolBox App to configure join type, App EUI, App Key and other information. You can also keep all settings by default.

port is 85.
Join Type| OTAA and ABP mode are available.
LoRaWAN Version| V1.0.2, V1.0.3, V1.1 are available.
Application Key| Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.
Device Address| DevAddr for ABP mode, default is the 5th to 12th digits of SN.
Network Session Key| Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Application Session Key| Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.
Spread Factor| If ADR is disabled, the device will send data via this spread factor.
Confirmed Mode| If the device does not receive ACK packet from network server, it will resend data once.
Rejoin Mode|

• Reporting interval ≤ 30 mins: the device will send a specific number of LinkCheckReq MAC packets to the network server every 30 mins to validate connectivity; If there is no response, the device will re-join the network.
• Reporting  interval  >  30  mins:  the  device  will  send  a  specific  number  of
• LinkCheckReq MAC packets to the network server every reporting interval to validate  connectivity;  If  there  is  no  response,  the  device  will  re-join  the

| network.
---|---
Set the number of packets sent| When rejoin mode is enabled, set the number of LinkCheckReq packets sent.
ADR Mode| Allow network server to adjust datarate of the device.
Tx Power| Transmit power of the device.

1. Please contact sales for device EUI list if there are many units.
2. Please contact sales if you need random App keys before purchase.
3. Select OTAA mode if you use Milesight IoT cloud to manage devices.
4. Only OTAA mode supports rejoin mode.

LoRaWAN Frequency Settings
Go to “LoRaWAN -> Channel” of ToolBox software or “Settings -> LoRaWAN Settings” of ToolBox App to select supported frequency and select channels to send uplinks. Make sure the channels match the LoRaWAN® gateway.

If frequency is one of CN470/AU915/US915, you can enter the index of the channel that you want to enable in the input box, making them separated by commas.

Examples

• 1, 40: Enabling Channel 1 and Channel 40
• 1-40: Enabling Channel 1 to Channel 40
• 1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60
• All: Enabling all channels
• Null: Indicates that all channels are disabled

Note
For -868M model, the default frequency is EU868;
For -915M model, the default frequency is AU915.

Time Synchronization ToolBox Sync:
Go to “Device -> Status” of ToolBox App to click “Sync” to sync the time, or go to “Status” page of ToolBox software to sync the time.

Network Server Sync
Go to “LoRaWAN Settings -> Basic” of ToolBox software or “Device -> Settings -> LoRaWAN Settings” of ToolBox App to change device LoRaWAN® version as 1.0.3 or 1.1, then the network server will use MAC command to assign the time to device every time it joins the network. Note: This function is only applicable to network server using LoRaWAN® 1.0.3 or 1.1 version.

Basic Settings
Go to “Device Settings -> Basic” of ToolBox software or “Device -> Settings -> General Settings” of ToolBox App to change the reporting interval, screen mode, etc.

to network server. Default: 10 mins, Range: 1-1080 mins
Temperature Unit| Change the temperature unit displayed on the ToolBox and screen.

Note

1. The temperature unit in the reporting package is fixed as °C.
2. Please modify the threshold settings if the unit is changed.

LED Indicator| Enable or disable the traffic light indicator to indicate air quality level.

• AM307 & AM308: Blink
• AM319: Always On, Blink

Buzzer| Enable or disable the buzzer. If enabled, the buzzer will response when one of concentrations of air pollutants exceeds the Bad threshold. It will
| automatically stop when the concentration values are lower than the Bad threshold.
---|---
Check Button| When enabled, users can press the power button to stop the buzzer beep.
Button Lock| When enabled, users can choose to lock the feature of power button: display mode switch or power on/off.
Data Storage| Disable or enable data storage locally. (see section 4.5.4 to export data )
Data Retransmission| Disable or enable data retransmission. (see section 4.5.5)
Screen Display| Disable or enable screen display.
Smart Screen Mode| When PIR value is 0 (Vacant) and last for 20 mins, the screen will stop updating to save power.
Screen Display Mode| Select the screen display contents.

AM307

1. Mode 1: Time&Date, CO2, Temperature, Humidity
2. Mode 2: CO2, Temperature, Humidity, TVOC, light
3. Mode 3: Time&Date, CO2, Temperature, Humidity, TVOC, light

AM308

1. Mode 1: Time&Date, CO2, PM2.5&PM10, Temperature, Humidity
2. Mode 2: CO2, PM2.5&PM10, Temperature, Humidity, TVOC, light
3. Mode 3: Time&Date, CO2, PM2.5&PM10, Temperature, Humidity, TVOC, light

AM319

1. Mode 1: Time&Date, CO2, PM2.5&PM10, Temperature, Humidity
2. Mode 2: CO2, PM2.5&PM10, HCHO/O3, Temperature, Humidity, TVOC, light
3. Mode 3: Time&Date, CO2, PM2.5&PM10, HCHO/O3, Temperature,

Humidity, TVOC, light

Color Theme| Select screen display background color as Light or Dark.
Change Password| Change the password for ToolBox App or software to read/write this device.

Advanced Settings
Data Collection Settings
Go to “Device Settings->Basic” of ToolBox software or “Device -> Settings -> Data Collection Settings” of ToolBox App to select the data you need to monitor. Among them, temperature, humidity and CO2 are not allowed to disable. If any item is disabled, it will disappear from the screen.

Calibration Settings
ToolBox supports numerical calibration for all items. Go to “Device Settings -> Basic” of ToolBox software or “Device -> Settings -> Calibration Settings” of ToolBox App to type the calibration value and save, the device will add the calibration value to raw value.

Besides numerical calibration, ToolBox provides more calibration methods for CO2:
Manual Calibration: Put the device in an open outdoor environment for more than 10 minutes and click this button to calibrate the CO2 value.
Restore Factory Calibration: Clean the manual calibration and turn back to factory calibration. Auto Background Calibration: When enabled, keep the device work in a well-ventilated environment for 180 hours (around 7 days), then disable the calibration.

Threshold Settings
Go to “Device Settings -> Basic” of ToolBox software or “Device -> Settings -> Threshold Settings” of ToolBox App to enable the threshold settings and input the threshold.
For temperature, it will upload the current data once instantly when temperature is over or below the threshold. Note that when you change the temperature unit, please re-configure the threshold.

For CO2, TVOC, PM2.5, PM10 and HCHO/O3, it supports defining Excellent, Polluted and Bad threshold for traffic light, buzzer and screen alarms. Besides, when one of concentrations of air pollutants exceeds the Bad threshold, AM300 series will upload the current data once instantly.

Data Storage
AM300 series supports storing more than 18000 data records locally and exports data via ToolBox App or ToolBox software. The device will record the data according to reporting interval even not joining network.

1. Go to “Device Settings -> Basic” of ToolBox software or “Device -> Settings -> General Settings” of ToolBox App to enable data storage feature.

2. Go to “Maintenance -> Basic” of ToolBox software or “Device -> Maintenance” of ToolBox App, click “Export”, then select the data time range and click “Save” to export data.
   Note: ToolBox App can only export last 7 days’ data. If you need to export more data, please use ToolBox software.

3. Click “Clear” to clear all stored data inside the device.

Data Retransmission
AM300 series sensor supports data retransmission to ensure network server can get all data even if network is down for some times. There are two ways to get the lost data:

• Network server sends downlink commands to enquire the historical data for specifying time range, see section 6.4;
• When network is down if no response from LinkCheckReq MAC packets for a period of time, the device will record the network disconnected time and re-transmit the lost data after device re-connects the network.

Here are the steps for data retransmission

1. Ensure the device time is correct (see section 4.3);

2. Enable data storage feature and data retransmission feature;
   

3. Enable rejoin mode feature and set the number of packets sent. Take below as example, the device will send LinkCheckReq MAC packets to the network server at least every 30 mins to check if the network is disconnected; if there is no response for 8 times (8 * 30 mins = 240 mins =4 hours), the device will record a data lost time point( disconnection time minus 4 hours).
   

4.  After the network connected back, the device will send the lost data from the point in time when the data was lost according to the reporting interval.

Note

1. If the device is rebooted or re-powered when data retransmission is not completed, the device will re-send all retransmission data again after device is reconnected to the network;
2. If the network is disconnected again during data retransmission, it will only send the latest disconnection data;
3.  The retransmission data format is started with “20ce”, please refer to see section 6.4.
4. Data retransmission will increase the uplinks and shorten the battery life.

Maintenance

Upgrade ToolBox Software

1. Download firmware from www.milesight-iot.com to your PC.
2. Go to “Maintenance -> Upgrade” of ToolBox software, click “Browse” to import firmware and upgrade the device. You can also click “Up to Date” to search for the latest firmware of the device and upgrade.

Tool Box App

1. Download firmware to your smartphone.
2. Open ToolBox App and click “Browse” to import firmware and upgrade the device.

Note

1. Operation on ToolBox is not supported during the upgrade.
2. Only Android version ToolBox supports the upgrade feature.

Backup
AM300 series supports configuration backup for easy and quick device configuration in bulk. Backup is allowed only for devices with the same model and LoRaWAN® frequency band.

Tool Box  Software

1. Go to “Maintenance -> Backup and Reset” of ToolBox software, click “Export” to backup the device configuration.
2. Click “Browse” to import the backup file, then click “Import” to load the configuration.

ToolBox App

1. Go to “Template” page on the App and save current settings as a template. You can also edit the template file.
2. Select one template file that saved in the smartphone and click “Write”, then attach it to another device to write configuration.

Note : Slide the template item to the left to edit or delete it. Click the template to edit the configurations.

Reset to Factory Default

Please select one of following methods to reset device

• Via Hardware: Hold on reset button more than 10s.
• Via ToolBox Software: Go to “Maintenance -> Backup and Reset” to click “Reset”.
• Via ToolBox App: Go to “Device -> Reset” to click “Reset”, then attach smart phone with NFC area to device to complete reset.

Installation

Fixed by 3M Tape

1. Paste 3M tape to the back of the mounting bracket, then tear the other side and place it on a flat surface.
2. Put the device on the mounting bracket, then fix the bottom of the device to the bracket with the theft-deterring screw.

Wall Mounting

1. Fix the wall plugs into the wall, then fix the mounting bracket to the wall plugs with screws.

2. Put the device on the mounting bracket, then fix the bottom of the device to the bracket with a fixing screw.

86Box Mounting

1. Fix the mounting bracket to the 86box with screws. There are two kinds of screw modes to fix.
2. Put the device on the mounting bracket, then fix the bottom of the device to the bracket with a fixing screw.

Note
In order to ensure the best detection and LoRaWAN® communication effect, it is recommended to install AM300 series as follows:

•  There should not be any isolates or barriers in PIR and light detection range.
• Do not mount the device where the temperature is below/above operating range and temperature varies greatly.
• Stay far away from any heat source or cold source like oven, refrigerator.
• Do not mount the device close to where airflow varies greatly like windows, vent, fan and air conditioner.
• Do not mount the device upside down.
• Do not place the device right to the window or door. If you have to, you’d better pull the curtain.
• It is recommended to install at least 1.5 m high from floor.

Device Payload

All data are based on following format(HEX), the Data field should follow little-endian:

Basic Information
AM300 series sensors report basic information of sensor whenever joining the network.

Example

ff166710b32620711912 ff090200 ff0a0101 ff0f02

Channel| Type| Value| Channel| Type| Value
ff| 16 (Device| 6710b32620711| ff| 09| 0200
SN)| 912| (Hardware version)| (V2.0)
Channel| Type| Value| Channel| Type| Value

ff

| 0a (Software

version)

| 0101 (V1.1)| ****

ff

| 0f (Device Type)| 02

(Class C)

Sensor Data
AM300 series sensors report sensor data according to reporting interval (10mins by default).

• 01: Occupied
• 00: Vacant

Light Level| 06| cb|

• 00：0-5 lux 01：6-50 lux 02：51-100 lux
• 03：101-500 lux
• 04：501-2000 lux
• 05：> 2000 lux

CO2| 07| 7d| UINT16, Unit: ppm
TVOC| 08| 7d| UINT16, Resolution: 0.01
Barometric Pressure| 09| 73| UINT16, Unit: hPa, Resolution: 0.1 hPa
HCHO| 0a| 7d| UINT16, Unit: mg/m3, Resolution: 0.01 mg/m3
PM 2.5| 0b| 7d| UINT16, Unit: μg/m3
PM 10| 0c| 7d| UINT16, Unit: μg/m3
O3| 0d| 7d| UINT16, Unit: ppm
Buzzer Status| 0e| 01|

• 00: buzzer is disabled
• 01: buzzer is beeping

| | | Note: this only upload when one of the concentrations of air pollutants of CO2, TVOC, PM2.5, PM10, HCHO/O3 exceeds the Bad threshold
---|---|---|---

Example

• Periodic Package

0367ea00 04688a 050001 06cb01 077dcd04 087d5e01 09735127 0a7d0700

0b7d3b00 0c7d4300

Channel| Type| Value| Channel| Type| Value
03| 67

(Temperature)

| ea 00 => 00 ea =

234 Temp=234*0.1=2 3.4°C

| 04| 68

(Humidity)

| 8a=>138 Hum=138*0.

5=69%

Channel| Type| Value| Channel| Type| Value
05| 00| 01: Occupied| 06| cb (Light Level)| 01= level 1

(6-50 lux)

Channel| Type| Value| Channel| Type| Value
07| 7d| cd 04 => 04 cd

=1229 ppm (CO2)

| 08| 7d| 5e 01 => 01

5e =350 TVOC=350*0

.01=3.50

Channel| Type| Value| Channel| Type| Value
09| 73（Barometric Pressure）| 51 27=>27

51=10044

Pressure=10065*

0.1=1006.5 hPa

| 0a| 7d| 07 00=>00

07=7 * 0.01

=0.07 mg/m3 (HCHO)

Channel| Type| Value| Channel| Type| Value
0b| 7d| 3b 00=>00 3b=59

μg/m3 (PM 2.5)

| 0c| d| 43 00=>00

43=67 μg/m3

(PM 10)

• CO2 value exceeds the Bad threshold.

077d0a060e0100

Channel| Type| Value| Channel| Type| Value

07

|

7d

| 0a 06 => 06 0a

=1546 ppm

|

0e

|

01

| 00=>Buzzer is disabled

Downlink Commands

AM300 series sensors support downlink commands to configure the device. The application port is 85 by default.

ff

| 03(Set Reporting Interval)| 2 Bytes, unit: s
10 (Reboot Device)| ff (Reserved)
17 (Set Time Zone)| 2 Bytes, desired UTC time zone * 10

1a (Set CO2 Calibration)

| 00 (Restore Factory Calibration)

03 (Manual Calibration)

39 (Set CO2 Auto Background Calibration)|

00: Disable, 01: Enable

25 (Set Button Lock)|

• 00: Disable
• 01: Lock Display Mode Switch 02: Lock Power On/Off
• 03: Lock both features

2c (Enquire LED and Buzzer Mode)| 00(Reserved)
2d (Screen Display)| 00: Disable the display 01: Enable the display
2e (Set LED Mode)| 00: Disable

01: Always On (AM319 Only) 02: Blink

3c (Set Display Mode)|

• 01: Mode 1
• 02: Mode 2
• 03: Mode 3

3d (Stop the Buzzer)| 00 (Reserved)
3e (Set Buzzer Mode)| 00: Disable, 01: Enable
69 (Set Data Retransmission)| 00: Disable, 01: Enable

Example:

• Set reporting interval as 20 minutes.

ff03b004

Channel| Type| Value
ff| 03 (Set Reporting Interval)| b0 04=>04 b0=1200s =20 minutes

• Enquire traffic light and buzzer mode.

ff2c00

Channel| Type| Value
ff| 2c (Enquire LED and Buzzer mode)| 00(Reserved)

Reply

ff2e02 ff3e00

Channel| Type| Value| Channel| Type| Value
ff| 2e(LED Mode)| 02=Blink| ff| 3e (Buzzer Mode)| 00=Off

Reboot the device.

ff10ff

Channel| Type| Value
ff| 10 (Reboot)| ff (Reserved)

Set time zone to GMT-4.

ff17d8ff

Channel| Type| Value
ff| 17 (Set Time Zone)| d8 ff => ffd8 = -40 = -4 * 10

Disable the e-ink screen display.

ff2d00

Channel| Type| Value
ff| 2d (Screen Display)| 00: Disable the display

Historical Data Enquiry
AM300 series sensors support sending downlink commands to enquire historical data for specified time point or time range. Before that, ensure the device time is correct and data storage feature was enabled to store the data.

Command format

time (4 bytes), unix timestamp
fd| 6d (Stop query data report)| ff
ff| 6a (Report Interval)| 2 Bytes, unit: s, range: 30~1200s (60s by default)
---|---|---

Reply format

• 00: data enquiry success
• 01: time point or time range invalid 02: no data in this time or time range

20| ce (Historical Data)| Data time stamp (4 Bytes) + Data Contents (Mutable)

Note

1. The device only uploads no more than 300 data records per range enquiry.
2. When enquiring the data in time point, it will upload the data which is closest to the search point within the reporting interval range. For example, if the device reporting interval is 10 minutes and users send command to search for 17:00’s data, if the device find there is data stored in 17:00, it will upload this data; if not, it will search for data between 16:50 to 17:10 and upload the data which is closest to 17:00.

Example
1. Enquire historical data between 2022/9/8 17:43:31 to 2022/9/9 01:45:20.

fd6c c3291a63 b09a1a63

Channel| Type| Value
| | Start time: c3291a63 => 631a29c3 =
fd| 6c (Enquire data in time

range)

| 1662659011 =2022/9/8 17:43:31

End time: b09a1a63 => 631a9ab0 =

| | 1662659011 =2022/9/9 01:45:20

Reply

fc6c00

Channel| Type| Value
fc| 6c (Enquire data in time range)| 00: data enquiry success
20ce56991a63 ff00 7300 00 00 f802 6400 9127 2200 2600

Channel| Type| Time Stamp| Value
20| ce (Historical Data)|

• 56991a63 =>
• 2022/9/9
• 01:39:34

|

• Temperature: ff00=>00ff=25.5°C
• Humidity: 7300=>0073=57.5%
• PIR: 00=> Vacant

| | |

• Light: 00=>Level 0 CO2: f802=>02f8=760 ppm TVOC: 6400=>0064=1.00
• Pressure: 9127=>2791=1012.9 hPa
• PM2.5: 2200=>0022=34 μg/m3
• PM10: 2600=>0026=38 μg/m3

---|---|---|---

Appendix

Carbon Dioxide Levels and Guidelines

• Headaches, sleepiness and stagnant, stale, stuffy air.
• Poor concentration, loss of attention, increased heart rate and slight nausea may also be present.

5000ppm| Workplace exposure limit (as 8-hour TWA) in most jurisdictions.

40000ppm| Exposure may lead to serious oxygen deprivation resulting in permanent brain damage, coma, even death.

TVOC Levels and Guidelines

Note : the conversion from mg/m3 to ppm by the factor is about 0.5 and conversion from ppm to ppb is by the factor 1000.

Illuminance Levels and Guidelines

operation theater.
---|---|---
Level 5| >2000| Performance of very prolonged and exacting visual tasks.

References

• Milesight | 5G, AI, IoT and LoRaWAN

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