• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Henan, China (Mainland)
  • Brand Name: WINSEN
  • Model Number: MH440D
  • Usage: Gas Sensor
  • Theory: Optical Sensor
  • Output: Digital Sensor
  • Output signal: UART
  • Output voltage: 0.4V~2V
  • Operate Voltage: 3.6~5V DC

Packaging & Delivery

Packaging Details box
Delivery Time 5 working days

Specifications

High Sensitivity and resolution
Fast response and resume
Temperature compensation
Anti-poisons, anti-vapor interference

About us

Zhengzhou Winsen Electronics Technology Co., Ltd. is No.1 gas sensor manufacturer in China, specialized in the R&D and mass production of gas sensors. 

 

Factory information

Factory size

Around 30000 square meter

Number of Production lines

33

Number of R&D staff

Above 50 people

Number of QC staff

More than 30 people

Staff number

More than 500 people

Quality control

 SGS; Rohs;UL

 

Market

Main market: North America; South America; Eastern Europe; Western Europe; Asia

Total annual sales valume: 3.5 million pieces

 

Product Feature

High Sensitivity and resolution

Low power consumption

Variety of signal output

Fast response and resume 

Temperature compensation and excellent linear output 

Excellent stability

Long life

Anti-poisons, anti-vapor interference

 

 

Application

MH440D sensor is a NDIR sensor in small sized to detect CH4 in air taking advantages of non-dispersive infrared principle. 

 

Technical specification

 

Working voltage

3.6 V ~ 5 V DC

Working current

85 mA

Interface level

V

Detection range

0~100%VOL

Output signal 

UART 

0.4 V ~ 2 V DC

Preheat time

90s

Response time

T90 < 30s

Temperature range

-20°C ~ 60°C

Temperature range

0~95%RH

Weight

15g

Lifetime

>5 years

explosion-proof sign

ExmbT6

Protection Level

IP54

 

Gas

Detection range

Resolution ratio

Accuracy

CH4

0~5%VOL

0.05%VOL

±3%F.S

0~100%VOL

0.1%VOL

±3%F.S

 

 

Notes for maintenance 

  • Ø The sensor should be calibrated regularly. The cycle time is better to be no more than 6 months.
  • Ø Do not use the sensor in the high dusty environment for long time.
  • Ø Please use the sensor with correct power supply.
  • Ø Forbidden to cut the sensor pin.

 

Sincerely hope you could come to our Company, and set up a long business relationship.

  

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $83,000
Learn More