Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy

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Cheapest Price Indoor Aqi Monitor - 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

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EM21 embedded installation Indoor Air Quality Monitor Simple and elegant type

❑LED Tri-colored lights
❑Visible air quality level
❑Compact and simple design
❑Gather real-time data and display history chart via a software platform

EM21 embedded installation Indoor Air Quality Monitor Screen display type

Show the detailed air quality on the screen
Display the real time values and 24-hour average of PM2.5, TVOCs, CO2
With on/off touch button to turn off /turn on screen

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Technology Specifications

Specifications CO2 TVOC  PM2.5

 

Temp&RH

 

HCHO

 

sensor NDIR Metal oxide semiconductor Laser particle sensor

Light scattering method

High-precision digital integrated

Temperature and humidity sensor

Electrochemical Formaldehyde sensors
 

Measuring

range

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 reading

or 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/n

RJ45 (Ethernet TCP) PoE power supply Optional

Shell material and IP level PC fireproof material

IP30

Operating

Environment

Temp:-10~60℃

Humidity︰0~99%RH

Overall Dimension 91.00mm*111.00mm*51.00mm
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)

Understand your air quality at all times

❑View real-time and historical data through RS485 or cloud-based platform such as MyTongdy , in computer or mobile APP

❑Check out or download data to analyze your indoor air quality and identify the pollution source as frequently as you need

❑Handle your indoor air quality by control the fresh air system or purification equipment automatically

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Application scenarios

Widely used in commercial or residential spaces

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Models Guide

No. Model PM2.5 CO2 Temp&RH VOC HCHO Output Display Power Supply
1 EM21-B/S12C/D · ·       RS485  

 

 

 

 

B No display

S with display

C: 24VAC/VDC

D: 100~240VAC

2 EM21-B/S13C/D · · ·    
3 EM21-B/S15C/D ·   · ·  
4 EM21-B/S17C/D · · ·   ·
5 EM21-B/S18C/D · · · ·  
6 EM21-B/S22C/D · ·       WI-FI
7 EM21-B/S23C/D · · ·    
8 EM21-B/S25C/D ·   · ·  
9 EM21-B/S27C/D · · ·   ·
10 EM21-B/S28C/D · · · ·  
11 EM21-B/S32C/D · ·      
12 EM21-B/S33C/D · · ·     RJ45 Ethernet

(please contact our sales department for POE Power Supply)

13 EM21-B/S35C/D ·   · ·  
14 EM21-B/S37C/D · · ·   ·
15 EM21-B/S38C/D · · · ·  

 

We provide commercial air quality monitors

Including- indoor, in-duct, outdoor monitors

Help you build healthy indoor air quality 

Tongdy Sensing Technology Corporation

Address:Building 8, No.9, Dijing Rd., Haidian Dist., Beijing 100095, China

Website:www.tongdy.com

Email:info@tongdy.com

Phone:86 10 59738930


Product detail pictures:

Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy detail pictures

Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy detail pictures

Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy detail pictures


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Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for Cheapest Price Indoor Aqi Monitor - EM21 Embedded Indoor Air Quality Monitor – Tongdy , The product will supply to all over the world, such as: Ecuador, Pretoria, Russia, Most problems between suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question items they do not understand. We break down people barriers to ensure you get what you want to the level you expect, when you want it. Faster delivery time and the product you want is our Criterion .
  • Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
    5 Stars By Hedy from Macedonia - 2018.05.13 17:00
    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.
    5 Stars By Madeline from South Africa - 2018.09.08 17:09
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