Air gas detector
A gas detector is also known as a gas sensor, gas transmitter, and gas monitor, which converts a certain gas volume fraction into an electrical signal for remote online monitoring and control.
Search & Filter
Air Gas Detector Model
A gas detector is a device that converts a certain gas volume fraction into an electrical signal. It is also known as a gas sensor, gas transmitter, and gas monitor.
The gas detector sensor can measure carbon monoxide (CO), carbon dioxide (CO2), industrial wall-mounted carbon dioxide (CO2), oxygen (O2), ozone (O3), sulfur hexafluoride (SF6), hydrogen sulfide (H2S), ammonia (NH3), sulfur dioxide (SO2), nitrogen dioxide (NO2), total volatile organic compound (TVOC), phosphine (PH3), hydrogen (H2), methane (CH4), formaldehyde (HCHO), and other gases.

SEM340 LCD Display Air Quality Sensor
SEM340 LCD display air quality sensor, the device has a built-in large-screen LCD, a friendly interface and is easy to

SEM328 EX Gas sensor
SEM328 EX gas transmitter sensor adopts imported first-line brand electrochemical sensor, which has the characteristics of rapid response and strong

SEM332 Compound multi-gas detector
SEM332 is an intrinsically safe compound detector developed for environments containing explosive or toxic gases. It can detect 6 gases:

SEM221 Air Pressure Sensor
The atmospheric pressure sensor is packaged with a chip imported from Switzerland. After precise temperature compensation, it has the characteristics

SEM329 Formaldehyde CH2O concentration sensor
SEM329 formaldehyde transmitter designed by our company adopts electrochemical sensor which has the characteristics of high measurement accuracy, fast response

SEM325 Sulfur dioxide SO2 sensor
SEM325 Sulfur dioxide SO2 sensor uses electrochemical technology to measure SO2 concentration, and the reaction is rapid and sensitive. The

SEM323B Pipeline Hydrogen sulfide temperature and humidity sensor
SEM323B Pipeline Hydrogen sulfide temperature and humidity sensor is a constant potential electrolytic hydrogen sulfide (H2S) sensor with low power

SEM325B Pipeline Sulfur dioxide SO2 sensor
SEM325B Pipeline Sulfur dioxide SO2 sensor uses electrochemical technology to measure SO2 concentration, and the reaction is rapid and sensitive.

SEM339 Wall-mounted color screen air and gas sensor
SEM339 Multi-parameter sensors are products independently developed by our company. They all use imported data acquisition chips, advanced production technology
Custom OEM Sensors
We support customize products according to your applications or specify brand substitutes.
Related Article
As one of the earliest gas detector sensor manufacturer, SenTec provide a wide variety air and gas solutions.
TVOC Air Quality Testing: Essential Facts for a Healthier Indoor Environment
Most people don’t realize they spend about 90% of their...
Read MoreWhat are functions of smart public toilet gas sensor ?
With the continuous development of information technology, the application level...
Read Morewhat is Air quality monitoring system?
The air quality monitoring system can continuously and automatically monitor...
Read More


