727 MIKROKERA 4L HYDROGEN SULFIDE SENSOR

PRECISION AIR QUALITY SENSORS

Reliably detects H2S at concentrations from 0.15 to > 100 ppm
Rugged sensor operates at temperature and humidity extremes
Fast response (<5 seconds) and complete recovery after H2S exposure
Sensor response is stable (does not go to sleep)
Thermistor heater allows active control of sensor temperature based on environmental temperature

ELECTRICAL CHARACTERISTICS

Property	Symbol	Value	Remarks
Heater Power Consumption	P_H	~225 mW	At V_H = 2.2 VDC
Heater Voltage	V_H	2.2 VDC	T_sensor ~300°C
Heater Resistance	R_H	10Ω ± 1.0 Ω	At Room Temparature
Sensing Voltage	V_c	2.5 VDC	Recommended
Resistance in Air	R_a	200 kΩ/20 MΩ	Min / Max
Resistance in 50 ppm H₂S	R₅₀	10 kΩ/1 MΩ	Min / Max
Sensitivity	R_a/R₅₀	15	Min