18 Years Factory Iaq Meter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy

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Our firm promises all consumers with the first-class products as well as most satisfying post-sale services. We warmly welcome our regular and new consumers to join us for , , , The principle of our organization is usually to provide high-quality items, qualified services, and trustworthy communication. Welcome all friends to place trial order for developing a long-term small business relationship.
18 Years Factory Iaq Meter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy Detail:

♦ Real time monitoring room carbon dioxide

♦ NDIR infrared CO2 sensor inside with special Self Calibration. It makes the CO2 measurement more accurate and more reliable.

♦ More than 10 years lifetime of CO2 sensor

♦ Temperature and humidity monitoring

♦ Three-color (Green/Yellow/ Red) LCD backlight indicates ventilation level -optimal/moderate/poor based on the CO2 measurements

♦ Buzzer alarm available/disable selected

♦ Optional display 24h average and max. CO2

♦ Provide optional 1xrelay output to control a ventilator

♦ Provide optional Modbus RS485 communication

♦ Touch button for easy operation

♦ 24VAC/VDC or 100~240V or USB 5V power supply

♦ wall mounting or desktop placement available

♦ High quality with the excellent performance, best choice for schools and offices

♦ CE-approval

Power supply 100~240VAC or 24VAC/VDC wire connecting USB 5V (>1A for USB adaptor) 24V with an adaptor
Consumption 3.5 W max. ; 2.5 W avg
Gas detected Carbon Dioxide (CO2)
Sensing element Non-Dispersive Infrared Detector (NDIR)
Accuracy@25℃(77℉) ±50ppm + 3% of reading
Stability <2% of FS over life of sensor (15 yr typical)
Calibration interval ABC Logic Self Calibration Algorithm
CO2 sensor life 15 years
Response Time <2 minutes for 90% step change
Signal update Every 2 seconds
Warm up time <3 minutes (operation)
CO2 measuring range 0~5,000ppm
CO2 Display resolution 1ppm
3-color backlight for CO2 range Green : <1000ppm Yellow: 1001~1400ppm Red: >1400ppm
LCD Display Real time CO2, Temp &RH Extra 24h average/max/min CO2 (optional)
Temperature measuring range -20~60℃(-4~140℉)
Humidity measuring range 0~99%RH
Relay output (optional) One relay output with rated switching current: 3A, resistance load
Operation conditions -20~60℃(32~122℉); 0~95%RH, non condensing
Storage conditions 0~50℃(14~140℉), 5~70%RH
Dimensions/ Weight 130mm(H)×85mm(W)×36.5mm(D) / 200g
Housing and IP class PC/ABS fireproof plastic material, protection class: IP30
Installation Wall mounting (65mm×65mm or 2”×4”wire box) Desktop placement
Standard CE-Approval

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18 Years Factory Iaq Meter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy detail pictures

18 Years Factory Iaq Meter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy detail pictures


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we can offer high quality products, competitive price and best customer service. Our destination is "You come here with difficulty and we give you a smile to take away" for 18 Years Factory Iaq Meter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy , The product will supply to all over the world, such as: Auckland, Swaziland, Korea, We warmly welcome your patronage and will serve our clients both at home and abroad with products and solutions of superior quality and excellent service geared to the trend of further development as always. We believe you will benefit from our professionalism soon.
  • The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
    5 Stars By Natividad from Malaysia - 2017.08.18 11:04
    Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
    5 Stars By Arlene from Cyprus - 2018.07.12 12:19
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