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

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With a sound enterprise credit history, exceptional after-sales services and modern production facilities, we've earned an outstanding track record amongst our consumers across the whole world for , , , We have been also the appointed OEM manufacturing unit for several worlds' famous merchandise brands. Welcome to contact us for more negotiation and cooperation.
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 constantly believe that one's character decides products' high quality, the details decides products' high-quality ,together with the REALISTIC,EFFICIENT AND INNOVATIVE crew spirit 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: Rome, Irish, Nigeria, We aim to build a famous brand which can influence a certain group of people and light up the whole world. We want our staff to realize self-reliance, then achieve financial freedom, lastly obtain time and spiritual freedom. We do not focus on how much fortune we can make, instead we aim to obtain high reputation and be recognized for our goods. As a result, our happiness comes from our clients satisfaction rather than how much money we earn. Ours team will do best for you personally always.
  • This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
    5 Stars By Brook from Greek - 2018.10.31 10:02
    The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
    5 Stars By Margaret from Poland - 2018.02.21 12:14
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