NO2 gas sensor SA-1N4
combustible gasozonechlorine dioxide

NO2 gas sensor
NO2 gas sensor
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Gas type
VOC, carbon monoxide, oxygen, for A2L refrigerants, NO2, ammonia, carbon dioxide, hydrogen, formaldehyde, ozone, chlorine, combustible gas, chlorine dioxide
monitoring, for industrial gas safety monitoring
Other characteristics
Modbus RTU
Measuring range (ppm)

Min.: 1 unit

Max.: 2,500 unit


Toxics - Oxygen – Combustibles - VOCs - Refrigerants NEMA 4X Weather Proof Enclosure High Visibility Color Graphic HMI User Interface via Magnet or Bluetooth® and OpCheck® APP Intuitive Full Script Operator Interface Optional Outputs Serial Output - Modbus RTU 9600 bps Local Alarm Relays gas detection sensors are designed to detect and monitor toxic, oxygen and combustible gases in ambient air. Sampling is via diffusion. The design features a full range of sensor technologies; electrochemical sensors, photo ionization detectors, non-dispersed infra-red and a multi spectrum combustible gas detection sensor. Specific gas type is determined by installing a selected Model SA1 smart sensor module. Each sensor module stores gas type, range of sensitivity and the last zero and span calibration data points. All electronics are contained within a NEMA 4X weather proof enclosure suitable for installation in non-hazardous locations. Model SA-1N4 gas detectors feature non-intrusive calibration using a small magnet or an Android™ phone or tablet and the Safeguard OpCheck application. The col-or graphic display provides simple and intuitive user interface with real time readings and full script service instructions. Device status is readily determined by screen color; green normal – no alarm condition, yellow alarm level 1, red alarm level 2 and blue indicates a fault condition.


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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.