Good Wholesale Vendors Carbon Monoxide Meter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy

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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" as well as theory of "quality the basic, have faith in the initial and administration the advanced" for , , , We warmly welcome customers from all over the world for any kind of cooperation with us to build a mutual benefit future. We are devoting ourselves wholeheartedly to offer customers the best service.

Good Wholesale Vendors Carbon Monoxide 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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Adhering to the principle of "quality, service, efficiency and growth", we have gained trusts and praises from domestic and international client for Good Wholesale Vendors Carbon Monoxide 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: El Salvador, Haiti, Armenia, Our team knows well the market demands in different countries, and is capable of supplying suitable quality products at the best prices to different markets. Our company has already set up a professional, creative and responsible team to develop clients with the multi-win principle.

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Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!

By Geraldine from Uruguay - 2018.04.25 16:46

Wide range, good quality, reasonable prices and good service, advanced equipment, excellent talents and continuously strengthened technology forces，a nice business partner.

By Carey from Tunisia - 2018.02.04 14:13

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