Description
pecifications: Smart Sensor ST8900 GAS Detector Meter
detect gas
Oxygen / Carbon Monoxide / Hydrogen Sulfide / Combustible Gas
Measuring range
Oxygen: 0~30%VOL (Accuracy ±5%FS) Resolution: 0.1%VOL
Carbon Monoxide: 0~999PPM (Accuracy ±10%) Resolution: 1ppm
Hydrogen Sulfide: 0~500PPM (Accuracy ±5ppm) Resolution: 1ppm
Combustible gas: 0~100%LEL (accuracy ±5%FS) resolution 1%LEL
Alarm value setting
Upper and lower limit settings
TWA alarm value
Time-weighted average (referring to cumulative toxic gas exposure within 8 hours)
STEL alarm value
Short-term exposure to allowable concentration (15 minutes)
Sensor principle
Electrochemical principle (combustible is catalytic combustion)
Alarm method
Sound, light and vibration triple alarm, the alarm value can be set, and the alarm sound can reach 80 decibels
Zero setting mode
Have
Standard gas setting mode
Have
battery working time
6 hours without alarm
Display method
HD color display
charging interface
Micro USB DC 5V
Response time
<60 seconds Working temperature -10~50℃ Working environment humidity 15%RH~95%RH Storage temperature 0~40℃ Other parameters Air pump measurement Yes (optional) Configuring the Sampling Pump Power Supply Host DC 3V power supply screen brightness adjustment —- language selection —- Battery 3.7V 1800mAh lithium battery Product Weight 253g Product Size 138*71*48mm
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