OEM Supply Indoor Ventilation - EM21 Embedded Indoor Air Quality Monitor – Tongdy

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We stick to our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". We aim to create more value for our customers with our rich resources, advanced machinery, experienced workers and excellent services for , , , We are highly aware of quality, and have the certification ISO/TS16949:2009. We are dedicated to supply you high quality products with reasonable price.

OEM Supply Indoor Ventilation - EM21 Embedded Indoor Air Quality Monitor – Tongdy Detail:

Real-time indoor air quality detection, single or combined measurement selection: PM2.5, CO2, TVOC, HCHO,Temperature and RH
3-color light indicates the range of the main measurement
Screen display optional

Technology Specifications

Specifications	CO2	TVOC	PM2.5	Temp&RH	HCHO
sensor	NDIR	Metal oxide semiconductor	Laser particle sensorLight scattering method	High-precision digital integratedTemperature and humidity sensor	Electrochemical Formaldehyde sensors
Measuringrange	400～5,000ppm	0~ 4.0mg∕㎥	0~500μg∕㎥	Temp:-20℃~60℃Humidity:0~99%RH	0~0.6mg/m3
Output Resolution	1ppm	0.001mg∕㎥	1μg∕㎥	Temp:0.01℃ Humidity:0.01%RH	0.001mg∕㎥
Accuracy	±50ppm + 3% of readingor 75ppm	<15%	<15%	Temp:±0.8℃ Humidity:±4.5%RH	±0.005mg/㎥+5% of reading

General Specifications
Detection Parameters(max.)	PM2.5;CO2;TVOC;Temp&RH;HCHO	Power Supply	24VAC/VDC±10%100~240VAC
Output (Optional)	RS485 (Modbus RTU)WIFI @2.4 GHz 802.11b/g/nRJ45 (Ethernet TCP) PoE power supply Optional	Shell material and IP level	PC fireproof materialIP30
OperatingEnvironment	Temp：-10~60℃Humidity︰0~99%RH	Overall Dimension	91.00mm111.00mm51.00mm
Storage Condition	0℃~50℃0~70%RH	Installation standard	Standard 86/50 pipe box (installation hole distance 60mm)American standard pipe box (installation hole distance 84mm)

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With dependable high quality approach, great reputation and excellent customer support, the series of products and solutions produced by our firm are exported to lots of countries and regions for OEM Supply Indoor Ventilation - EM21 Embedded Indoor Air Quality Monitor – Tongdy , The product will supply to all over the world, such as: The Swiss, Algeria, Croatia, We have more than 10 years exported experience and our products have expored more than 30 countries around the word . We always hold the service tenet Client first,Quality first in our mind,and are strict with product quality. Welcome your visiting!

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The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.