sygonix 2804759 Thermo-Hygrometer Instruction Manual

sygonix 2804759 Thermo-Hygrometer

Product Information

• Product Name: Thermo-Hygrometer with CO2 Index
• Model Number: 2804759
• Intended Use: The Thermo-Hygrometer with CO2 Index is designed for indoor use only. It provides measurements of temperature, humidity, and CO2 concentration in the room.
• Delivery Content: The package includes the operating instructions.
• Latest Product Information: For the most up-to-date product information, download it from www.conrad.com/downloads or scan the QR code provided. Follow the instructions on the website.
• Safety Instructions: Please read the operating instructions carefully and follow the safety information provided. Failure to do so may result in personal injury or damage to property.

Technical Specifications:

• Dimensions (W x H x D): 100 x 100 x 35 mm
• Weight: 150 g

Product Usage Instructions

1. Power Supply: Use the provided USB cable with a compatible USB power source for power supply.
2. Placement: Position the Thermo-Hygrometer in a suitable location in the room.
3. Turning On and Off the Backlight: Follow the instructions in the manual to turn on or off the backlight of the display.
4. Setting Temperature Unit: Refer to the manual for instructions on how to set the desired temperature unit (e.g., Celsius or Fahrenheit).
5. CO2 Concentration: The current CO2 concentration in the room is displayed on the LCD screen with colored levels. Level 1 (yellow) indicates an acceptable concentration, while Level 2 (red) indicates a poor concentration.
6. CO2 Concentration Calibration: Follow the instructions provided in the manual for calibrating the CO2 concentration measurement if necessary.
7. Ending Alarm: Press any button to stop the alarm.
8. Cleaning and Maintenance: Clean the product with a soft, dry cloth. Remove the battery before storing the product or in case of a depleted battery to prevent leakage.
9. Disposal: Follow the proper disposal guidelines for the product as described in the manual.

• Thermo-Hygrometer with CO2 index
• Item No. 2804759

Intended use

• This product is an air quality monitor that measures the indoor temperature, humidity and concentration of carbon dioxide (CO2) in the air. The readings are displayed in a coloured LCD screen. The product features a CO2 concentration alarm function. The product is suitable for indoor environments, such as bedrooms, living rooms, kitchens, offices. The product is powered via USB-C®.
• The product is intended for indoor use only. Do not use it outdoors. Contact with moisture must be avoided under all circumstances.
• If you use the product for purposes other than those described, the product may be damaged. Improper use can result in short circuits, fires, injuries or other hazards.
• The product complies with the statutory national and European requirements. For safety and approval purposes, you must not rebuild and/or modify the product.
• Read the operating instructions carefully and store them in a safe place. Make this product available to third parties only together with the operating instructions.
• All company names and product names are trademarks of their respective owners. All rights reserved.
• USB4®, USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.

Delivery content

• Product
• USB cable (USB-A to USB-C®)
• Operating instructions

Latest product information

• Download the latest product information at www.conrad.com/downloads or scan the QR code shown. Follow the instructions on the website.

Description of symbols

• The following symbols are on the product/appliance or are used in the text:
• The symbol warns of hazards that can lead to personal injury.

Safety instructions

• Read the operating instructions carefully and especially observe the safety information. If you do not follow the safety instructions and information on proper handling in this manual, we assume no liability for any resulting personal injury or damage to property. Such cases will invalidate the warranty/guarantee.

General information

• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. This may become dangerous playing material for children.
• If you have questions which remain unanswered by these operating instructions, contact our technical support service or other technical personnel.
• Maintenance, modifications and repairs must only be completed by a technician or an authorised repair centre.
• Handling
• Please handle the product carefully. Jolts, impacts or a fall even from a low height can damage the product.

Operation

• If it is no longer possible to operate the product safely, take it out of operation and protect it from any accidental use. DO NOT attempt to repair the product yourself. Safe operation can no longer be guaranteed if the product:
• is visibly damaged,
• is no longer working properly,
• has been stored for extended periods in poor ambient conditions or
• has been subjected to any serious transport-related stresses.

Operating environment

• Do not place the product under any mechanical stress.
• Protect the product from extreme temperatures, strong jolts, flammable gases, steam and solvents.
• Protect the product from direct sunlight.
• Never operate the product in direct proximity of strong magnetic or electromagnetic fields or transmitter aerials or HF generators. Doing so can prevent the product from functioning properly.

USB cable

• As power supply, only use the included USB cable with a compatible USB power adapter (not included).
• If the USB cable is damaged, it must be replaced with a cable of the same type.
• The mains outlet must be located near to the device and be easily accessible.
• Make sure that the USB cable is not squeezed, bent, damaged by sharp edges or put under mechanical stress.
• Ensure that cables are not pinched, kinked or damaged by sharp edges.

(Rechargeable) batteries

• Correct polarity must be observed while inserting the (rechargeable) batteries.
• The (rechargeable) batteries should be removed from the device if it is not used for a long period of time to avoid damage through leaking. Leaking or damaged (rechargeable) batteries might cause acid burns when in contact with skin, therefore use suitable protective gloves to handle corrupted (rechargeable) batteries.
• (Rechargeable) batteries must be kept out of reach of children. Do not leave (rechargeable) batteries lying around, as there is risk, that children or pets swallow them.
• All (rechargeable) batteries should be replaced at the same time. Mixing old and new (rechargeable) batteries in the device can lead to (rechargeable) battery leakage and device damage.
• (Rechargeable) batteries must not be dismantled, short-circuited or thrown into fire. Never recharge nonrechargeable batteries. There is a risk of explosion!

Product overview

1. Indoor temperature reading (°C or °F)
2. CO2 concentration index
3. Low battery icon
4. Detecting air quality icon
5. Backlight On/Off button
6. CO2 concentration reading (ppm)
7. Indoor relative humidity reading (%)
8. Adjust button
9. ▲ / °C/°F button
10. ▼ button
11. Alarm button
12. Battery compartment cover 13 USB-C® input

Power supply

• The product is powered via a USB-C® power supply. You can install batteries for backup power to maintain the product settings in case the USB power supply is temporarely interrupted.

Installing batteries for backup power

• Install batteries for backup power to maintain the product settings in case the USB power supply is temporarely interrupted.

1. Push down the tab of the battery compartment cover to open it.
2. Insert the new batteries (3x 1.5 V AA batteries, not included) following the polarities (+/-) marked inside the compartment.
   • The LCD display will briefly show all the icons and a beep will sound.
3. Slide the cover back into the compartment and press the top to close it.

Note:
Replace the batteries when the Low battery icon is displayed on the screen.

Powering via USB

1. Connect the provided USB cable to the USB-C® input on the product.
2. Connect the other end of the cable to a suitable USB power supply.
   • The LCD display will briefly show all the icons and a beep will sound.
   • The display will show the current indoor temperature and humidity readings
   • The display will show the measured CO2 concentration after 94 seconds (initial display = 500 ppm).

Placement

Place the product on a flat, dry, and stable surface. A hole is available on the back for wall hanging.
Turning the backlight on/off

• If the product is powered by batteries, touch the On/Off button at the top to turn the backlight on. The backlight will automatically turn off after 5 seconds.
• If the product is powered by USB power, the backlight will always stay on. Touch the On/Off button at the top to adjust the backlight brightness (High / Low / Off).

Setting the temperature unit

• In the main screen, long press the ▲ / °C/°F button to switch the temperature unit to °C or °F.

Note:

• If the indoor temperature falls below the minimum or exceeds the maximum value in the measuring range (-9.9 to 50 °C / 14.18 to 122 °F), the display will show “LL.L” or “HH.H” respectively.
• If the indoor relative humidity falls below the minimum or exceeds the maximum value in the measuring range (1 % to 99 %), the display will show “1 %” or “99 %” respectively.

CO2 concentration

• CO2 concentration values measured in the room are indicated on the display and colour-coded (green = great, yellow = ok, red = bad). You can adjust/calibrate the baseline from which concentration values are measured for better accuracy.
• The CO2 concentration alarm alerts you if the CO2 concentration in the room exceeds the set value.

CO2 concentration index

• The LCD display will show the current level of CO2 concentration in the room with coloured levels.

CO 2 concentration index|

Great (green)

|

OK (yellow)

|

Bad (red)

---|---|---|---
Level 1| 400 – 475 ppm| 700 – 900 ppm| 1500 – 2375 ppm
Level 2| 475 – 550 ppm| 900 – 1100 ppm| 2375 – 3250 ppm
Level 3| 550 – 625 ppm| 1100 – 1300 ppm| 3250 – 4125 ppm
Level 4| 625 – 700 ppm| 1300 – 1500 ppm| 4125 – 5000 ppm

Calibrating CO2 concentration

• You can adjust/calibrate the baseline from which concentration values are measured for better accuracy.

1. In the main screen, press and hold the Adjust button for about 3 seconds.
   • The CO2 concentration value will flash.
2. Press the ▲ / °C/°F button or ▼ button to increase or decrease the value 10 ppm (-500 to 500 ppm). Or long press the button to rapidly increase or decrease the value.
3. Press the Adjust button to save your setting and exit.

Note:
If no button is pressed for 30 seconds, the display will automatically save the setting shown on the screen and exit to the main screen.

CO2 concentration alarm

• The CO2 concentration alarm alerts you if the CO2 concentration in the room exceeds the set value. You can set a custom concentration value or rely on the default value of 1500 ppm. If the alarm is triggered:
• the beeper will sound
• the corresponding red index level will light up on the display
• the CO2 concentration value and alarm icon will flash on the display
• The CO2 concentration alarm stops if the measured concentration value in the room falls below the alarm concentration value or if you manually stop the alarm.
• Setting custom CO2 concentration alarms
• Set a custom CO2 alarm value to overwrite the default alarm value of 1500 ppm.

1. In the main screen, press and hold the Alarm button for about 3 seconds to enter CO2 concentration alarm setting mode.
   • The CO2 alarm value and alarm icon will start to flash on the display.
2. Press the ▲ / °C/°F button or ▼ button to increase or decrease the value 10 ppm (1000 to 5000 ppm). Or long press the button to rapidly increase or decrease the value.
3. Press the Alarm button to save your setting and exit.

Note:
If no button is pressed for 30 seconds, the display will automatically save the setting shown on the screen and exit to the main screen.

Stopping the alarm

• The CO2 concentration alarm stops if the measured concentration value in the room falls below the alarm concentration value or if you manually stop the alarm.

If the alarm sounds:

• Air the room to lower the CO2 concentration until the alarm stops. –OR– press any key to stop the alarm.

Cleaning and care

Important:

• Do not use harsh cleaning agents, rubbing alcohol or other chemical solutions. They damage the housing and can cause the product to malfunction.
• Do not rinse the product under the tap or expose to moisture.
• Do not immerse the product in water.
• Clean the product with a soft, dry cloth.
• Remove the battery before storing the product, or when the battery is depleted, to prevent leakage.

Disposal

Product

• This symbol must appear on any electrical and electronic equipment placed on the EU market. This symbol indicates that this device should not be disposed of as unsorted municipal waste at the end of its service life.
• Owners of WEEE (Waste from Electrical and Electronic Equipment) shall dispose of it separately from unsorted municipal waste. Spent batteries and accumulators, which are not enclosed by the WEEE, as well as lamps that can be removed from the WEEE in a non-destructive manner, must be removed by end users from the WEEE in a non-destructive manner before it is handed over to a collection point.
• Distributors of electrical and electronic equipment are legally obliged to provide free take-back of waste. Conrad provides the following return options free of charge (more details on our website):
• in our Conrad offices
• at the Conrad collection points
• at the collection points of public waste management authorities or the collection points set up by manufacturers or distributors within the meaning of the ElektroG
• End users are responsible for deleting personal data from the WEEE to be disposed of.
• It should be noted that different obligations about the return or recycling of WEEE may apply in countries outside of Germany.

(Rechargeable) batteries

• Remove batteries/rechargeable batteries, if any, and dispose of them separately from the product. According to the Battery Directive, end users are legally obliged to return all spent batteries/rechargeable batteries; they must not be disposed of in the normal household waste.
• Batteries/rechargeable batteries containing hazardous substances are labelled with this symbol to indicate that disposal in household waste is forbidden. The abbreviations for heavy metals in batteries are: Cd = Cadmium, Hg = Mercury, Pb = Lead (name on (rechargeable) batteries, e.g. below the trash icon on the left).
• Used (rechargeable) batteries can be returned to collection points in your municipality, our stores or wherever (rechargeable) batteries are sold. You thus fulfil your statutory obligations and contribute to environmental protection.
• Batteries/rechargeable batteries that are disposed of should be protected against short circuit and their exposed terminals should be covered completely with insulating tape before disposal. Even empty batteries/rechargeable batteries can contain residual energy that may cause them to swell, burst, catch fire or explode in the event of a short circuit.

Technical data

Power supply

• Batteries…………………………………………4.5 V, 3x 1.5 V AA batteries
• Input voltage/current…………………………5 V/DC, 500 mA (USB-C®)
• Power consumption………………………….max. 2.5 W

Indoor temperature

• *Temperature measuring range.** ………… -9.9 to +50 °C, with 0.1 °C resolution / +14.18°F to +122 °F, with 0.18 °F resolution
• Temperature accuracy.. …………………….±1 °C / ± 2°F
• Measuring intervals: every 47 seconds.

Indoor relative humidity

Relative humidity

• measuring range *…………………………….1 – 99 %, with 1 % resolution
• Relative humidity accuracy ………………..±5 %

Measuring intervals: every 47 seconds.

• **Equivalent CO2 ppm measuring range CO2 concentration measuring range*** …………………………….400 – 5000 ppm
• CO2 concentration accuracy. ……………..±50 ppm + 5 %
• Measuring intervals: every 47 seconds.

Environment

• Operating/Storage conditions …………….-10 to +50 °C, 1 – 99 % RH (non-condensing)

Other

• Dimensions (W x H x D)……………………100 x 100 x 35 mm
• Weight……………………………………………150 g
• This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com). All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication represents the technical status at the time of printing. Copyright 2023 by Conrad Electronic SE.*2804759_v2_0823_02_DS_m4L(1)
• www.conrad.com/downloads

Documents / Resources

| sygonix 2804759 Thermo- Hygrometer [pdf] Instruction Manual
2804759 Thermo-Hygrometer, 2804759, Thermo-Hygrometer, Hygrometer
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References

• Conrad Electronic » All parts of success
• Download center

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