power supply voltage:2.5 + / - 0.25 V DC
Current 2V power supply:DC 150 ~ 170mA
environment temperature:Operate at -10 by 50°C
Product model:MQ138
Product Type:Semiconductor Gas Sensor
Standard package:bakelite, metal cover
Product Model:ZP16 Air Quality Module
Detection gas:formaldehyde, benzene, carbon monoxide, hydrogen, alcohol, ammonia
Organic volatile gases:Cigarette smoke and flavors
Operation Principle:3-Electrode Electrochemical
Nominal Range:0 - 1 ppm
Maximum Overload:5 ppm
Operating Voltage:3.3-5.5 V DC
Humidity Measuring Range:20-90 %RH
Humidity Accuracy:±5 %RH
Working Voltage:5~20 V DC
Static Current:≤ 55 μA
Sensitivity:≥ 2200 V/W
Working Voltage:5.0 ± 0.2 V DC
Working Current:≤ 60 mA
Preheating Time:≤ 3 min
Detection Principle:Semiconductor (thick‑film)
Working Voltage:5.0 ± 0.2 V DC
Working Current:≤ 60 mA
Detection Principle:Electrochemical
Detection Gas:Carbon Monoxide (CO)
Detection Range:0~500 ppm
Measurement Range:0 - 100 ppm
Resolution:0.1 ppm
Operating Temperature:- 40°C to 50°C
Working Voltage:5~20V DC
Static Current:<65µA, @5V
Level Output:High Level, 3V; Low Level, 0V
Detection gas:Natural gas
Alarm Threshold:4000ppm
Type of Sensor:Flat surfaced semiconductor type