1PCS MQ-139 MQ139 Freon CFCs Chloro Fluoro Carbon Gas Sensor Module R134A Detection High Sensitive with Alarm Signal Light
$83.98
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1PCS MQ-139 MQ139 Freon CFCs Chloro Fluoro Carbon Gas Sensor Module R134A Detection High Sensitive with Alarm Signal Light
$83.98
- Brand : HUABAN
- Item Weight : 0.02 kg
- Alarm : Audible, Visual
- Operating Humidity : 95 percent
- Sensor Type : gas sensor
- Unit Count : 1 Count
- Manufacturer : HUABAN
- MQ-139 Sensor
- Heating voltage: 5 +0.2V (AC·DC);Working current: 180mA;Circuit voltage: DC5V (Max DC24V);Clean air voltage: < 1.5V
- Test concentration range :10-1000ppm ; Sensitivity: >3% ; Response time: < 1S (3-5 minute warm-up, theory preheating time 48 hours)
- Working temperature: -10 ~ 50 oC (nominal temperature 20 oC) ; Humidity: 95% RH (nominal humidity 65% RH)
- Size: 35mm×40mm×28mm