ECOWITT WH45 Indoor PM2.5 – PM10 – CO2 – Temperature – Humidity 5-In-1 Detection Sensor User Manual

WH45 Indoor PM2.5 – PM10 – CO2 – Temperature – Humidity 5-In-1 Detection Sensor
User Manual

Introduction

Thanks for your purchase of this integrated multifunction indoor air quality monitoring sensor. It measures PM2.5/PM10/CO2/Temperature/Humidity. To ensure the best product performance, please read this manual and retain it for future reference.

Unpacking

Open your box and inspect that the contents are intact (nothing broken) and complete (nothing missing). Inside you should find the following:

5-In-1)
1| USB Cable
1| User Manual

Table: Package content

If any component is missing from the package or broken, please contact our Customer Service department to resolve the issue.

Features

Particle Detection Sensor

• Measures indoor PM2.5, PM10, CO2 concentration, Temperature, and Humidity every 60 seconds when powered with USB or detecting every 10 minutes when powered with batteries only.
• USB connection for indoor use only
• CO2 value calibration function available on the device
• PM2.5 value Calibration function available when paired with GW1000/HP2551/HP3500/HP3501
• Long wireless range, up to 300 feet (100 meters) in open areas
• Monitor live sensor data on the Live Data page of the WS View app (requires the gateway and your phone using the same Wi-Fi network)
• Displays current PM2.5 / PM10 concentration/AQI and 24H AQI and air quality level index on the Live Data page of the WS View app
• Displays current CO2 concentration and 24H average CO2 concentration on the Live Data page of the WS View app
• Displays temperature and humidity data where the sensor located
• Calibration function available

When paired with a Weather Station Console (HP2551/HP3500/HP3501):

• The PM2.5, PM10, and CO2 data automatically scroll displaying on the screen every 5 seconds.
• Calibration function available.

When uploaded to Ecowitt Weather Server:

• View current sensor data & history records & the graph on the website
• Set and receive email alerts from the server
• Remote monitoring with a smartphone, laptop, or computer by visiting the website

Sensor Set-Up

1. Remove the battery door on the base of the air a quality sensor as shown in Figure 1
   No| Description| No| Description
   ---|---|---|---
   1| Red LED Indicator (RF transmission)| 3| Battery Compartment Cover
   2| AC Adapter USB Power Port| 4| Battery Compartment

2. Insert two AA batteries and close the battery door.
   Note: The batteries (not included) are mainly for backup purposes.

3. Connect the USB cable between the sensor and an AC adapter(not included).

Note: After inserting the batteries or connecting AC power, the sensor LED indicator will light for 3 seconds – flash once after the 20s, and then flash once per 1 minute thereafter (10 minutes if only powered by batteries). Each time it flashes, the sensor is transmitting data.

Sensor Installation

Before installing the sensor into its permanent location, you may go to Section 6 to configure the gateway first. Once the sensor has been confirmed working correctly, then you can go back here.
Place the sensor on a horizontally surface. Note that the vents must be clear of any obstructions, and we recommend placement away from other electronic devices to prevent interference. Do not place on a metal table to prevent RF signal loss.
Note: This sensor is designed for indoor use without waterproof function. Wireless communication is susceptible to interference, distance, walls, and metal barriers. We recommend the following best practices for trouble-free wireless communication.

1. Electro-Magnetic Interference (EMI). Keep the console several feet away from computer monitors and TVs.
2. Radio Frequency Interference (RFI). If you have other devices using the same RF frequency and communication is intermittent, try turning off these other devices for troubleshooting purposes. You may need to relocate the transmitters or receivers to avoid intermittent communication.
3. Line of Sight Rating. This device is rated at 300feet line of sight (no interference, barriers, or walls) but typically you will get 100feet maximum under most real-world installations, which include passing through barriers or walls.
4. Metal Barriers. Radiofrequency will not pass through metal barriers such as aluminum siding. If you have metal siding, align the remote and console through a window to get a clear line of sight.

Wi-Fi Configure with gateway

This Particle Detection Sensor doesn’t have a display function and you need to use our WS View App to view the data on your mobile application after pairing this device with our GW1000 Wi-Fi Gateway or HP2551/HP3500/HP3501 console (all sold separately).

Pair with Gateway
If GW1000 has been in operation, and you have never had any WH45 sensor setup before, just power up the sensor and GW1000 will pick sensor data automatically.
If a WH45 sensor has been hooked on GW1000 before, and you have a new sensor to replace the old one, just power off the old sensor and power on the new sensor, open the  APP: WS View, tap the device, and go to sensor ID page, locate the WH45 sensor, select “Register”, then the gateway will erase the previously registered sensor and have the new sensor paired.

Wi-Fi Connection for the Gateway
For this part, please refer to the manual of the GW1000 Wi-Fi gateway.
Any questions, please contact customer service.

View Online Data on WS View
When the Wi-Fi configuration is done, you can view the live data of your sensor on the WS View application.

Note:
The WH45 sensor data can be only viewed on the Live Data interface since it doesn’t support uploads to weather underground.
If you choose to upload the data to our weather server: https://www.ecowitt.net, you can view the live data/history graph and download the records on the website. You can add a shortcut to the website on the home screen of your phone for quick access.

Appendix

Air Quality Index (AQI) for the PM2.5 Concentration (24hr)

Air Quality Index (AQI) for the PM10 Concentration (24hr)

Carbon Dioxide Levels and potential health problems are indicated below:

• 250-350 ppm: background (normal) outdoor air level
• 350-1,000 ppm: typical level found in occupied spaces with good air exchange
• 1,000-2,000 ppm: level associated with complaints of drowsiness and poor air
• 2,000-5,000 ppm: level associated with headaches, sleepiness, and stagnant, stale, stuffy air; poor concentration, loss of attention, increased heart rate and slight nausea may  also be present.

• 5,000 ppm: This indicates unusual air conditions where high levels of other gases also could be present. Toxicity or oxygen deprivation could occur. This is the  permissible exposure limit for daily workplace exposures.

• 40,000 ppm: This level is immediately harmful due to oxygen deprivation.

Reference link:
https://ohsonline.com/Articles/2016/04/01/CarbonDioxide-Detection-and-Indoor- Air-QualityControl.aspx?Page=2

Sensor Calibration

CO2:There is an easy way to find whether the CO2 sensor is drifted or not: put the sensor in outdoor open-air locations, away from any combustion exhausts, wait for 30 minutes, you should see the CO2 reading is 420ppm +/-10. If it is far from this reading, you can wait for some more time, and test it during the night to confirm. Once it is confirmed, you can open the back housing, and use a clipper pin to press the Calibrate button as the below figure shows, leave it for the 30s, and the reading will be shifted back to 420ppm.

PM2.5: It is not possible to calibrate on the sensor side, and you can calibrate through WS View App, which saves the offset value on the gateway side before sending data to  www.ecowitt.net server. However, if PM2.5 data is persistently low, it can be that there is a spider net going inside the sensor. So please clean the sensor from time to time to see if there is any sign of spider penetration.
Note: If the battery level is lower than 4 bars, calibration is prohibited. When the led light on the sensor is steady for 3 seconds, it indicates that calibration is prohibited.

Specification

0.1°F
Humidity| 0%–99%| ± 5%| 1%

Transmission distance in the open field: 100m(300 feet)
Frequency: 915/868/433MHz (915MHz for North America, 868MHz for Europe, 433 for other areas)
Sensor reporting interval: 1 minute (10 minutes when only powered by batteries)

Power consumption

• Particle Detection Sensor: AC power (5V 1A) Not included 2 x AA 1.5V Batteries for back up – Not included

Note:
If you have a WH41 or WH43 PM2.5 sensor, the reading of PM2.5 may be different due to the different sensor types used.

Warranty Information

We disclaim any responsibility for any technical error or printing error, or the consequences thereof.
All trademarks and patents are recognized.
We provide a 1-year limited warranty on this product against manufacturing defects or defects in materials and workmanship.
This limited warranty begins on the original date of purchase, and is valid only on products purchased, and only to the original purchaser of this product. To receive warranty service,  the purchaser must contact us for problem determination and service procedures.
This limited warranty covers only actual defects within the product itself and does not cover the cost of installation or removal from a fixed installation, normal set-up or adjustments, or claims based on misrepresentation by the seller, or performance variations resulting from installation-related circumstances.

References

• Ecowitt Weather
• Ecowitt Weather
• Ecowitt Weather
• Carbon Dioxide Detection and Indoor Air Quality Control -- Occupational Health & Safety
• Professional Weather Products | Smart Home Product – Ecowitt
• Ecowitt Weather

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