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.

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

SEM322 Ammonia temperature and humidity sensor
SEM322 Ammonia temperature and humidity sensor Wall-mounted waterproof case, easy to install, high level of protection, can adapt to different

SEM224 Air quality PM2.5 PM10 sensor
SEM224 industrial grade general particle concentration transmitter adopts the principle of laser scattering measurement and sieves through unique data

SEM223B Pipeline CO2 temperature and humidity integrated sensor
SEM223B transmitter adopts a new infrared verification technology to measure CO2 concentration. The response is quick and sensitive, avoiding

SEM332B Portable combustible freon leak detector
SEM332B Combustible gas/freon leak detector, detect combustible gas by natural diffusion method Body, with high precision and repeatability accuracy. The

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

SEM327 TVOC sensor
SEM327 TVOC transmitter introduced by our company can effectively monitor the TVOC content in the environment, and can communicate directly

SEM331 H2 Hydrogen sensor
SEM331 H2 Hydrogen sensor Adopt imported electrochemical sensors of major brands are used, which are stable and durable; Various

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


