Hydrogen Sulfide


Smart Sensor SA1-H2S

Model SA1 smart sensor modules are designed to detect and monitor various gases in ambient air. The modules consist of a target specific gas detection sensor and a microprocessor-based signal conditioning circuit. Both are housed in a metallic enclosure fitted with gold plated connecting pins. The “Smart Sensor Module” is factory programmed for a specific gas and range of sensitivity. On power up the gas type, measurement range and previous zero and span calibration data points are read by the transmitter facilitating a fully automated startup. The modules can be used with any of Safeguard Analytics gas detection transmitters.

Sensor Technology:


Detector Type:  Electrochemical
Detection Method: Diffusion
Range of Sensitivity: 0-100 PPM
Response Time: T90 ≤ 30s
Accuracy: ± 2% of FS
Zero Drift: < 2% per month
Span Drift: < 2% per month
Temperature Range: -40°C to +60°C; -40°F to 140°F
Humidity Range: 15% to 90% RH non-condensing
Pressure Range: 1 Atm ± .1
Input Power:  ~ 3.5 to 5 VDC
Power Consumption: 2.64 milliwatts
Detector Life Expectancy:  >2 Years
Detector Warranty:  1 Year

SA1-H2S-50Hydrogen Sulfide Gas Detector, 0-50 PPM (E-Chem) SmartSensor Module
SA1-H2S-100Hydrogen Sulfide Gas Detector, 0-100 PPM (E-Chem) SmartSensor Module