OEM Factory for Carbon Monoxide Detector 0 Ppm - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy

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Our enterprise insists all along the standard policy of "product high-quality is base of business survival; client satisfaction could be the staring point and ending of an business; persistent improvement is eternal pursuit of staff" as well as consistent purpose of "reputation first, client first" for , , , We encourage you to make contact as we are looking for partners in our venture. We are sure you will find doing business with us not only fruitful but also profitable. We are ready to serve you with what you require.
OEM Factory for Carbon Monoxide Detector 0 Ppm - 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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OEM Factory for Carbon Monoxide Detector 0 Ppm - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy detail pictures

OEM Factory for Carbon Monoxide Detector 0 Ppm - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy detail pictures


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We often stay with the principle "Quality Very first, Prestige Supreme". We have been fully committed to supplying our consumers with competitively priced high-quality goods, prompt delivery and skilled provider for OEM Factory for Carbon Monoxide Detector 0 Ppm - 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: Miami, Nicaragua, Hungary, To let customers be more confident in us and get the most comfortable service, we run our company with honesty, sincerity and best quality . We firmly believe that it is our pleasure to help customers to run their business more successfully, and that our experienced advice and service can lead to more suitable choice for the customers.
  • The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Isabel from Czech Republic - 2017.01.28 18:53
    We are old friends, the company's product quality has been always very good and this time the price is also very cheap.
    5 Stars By Pearl from Thailand - 2018.09.12 17:18
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