ST8904 4-in-1 Gas Detector Carbon Monoxide Detector CO Gas Sniffer: Blue

This professional 4 in 1 gas detector is designed for detecting CO, H₂S, O₂ and LEL gas. It can continuously monitor the CO, H₂S, O₂ and LEL gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound, vibration and flash. High precision portable CO, H₂S, O₂ and LEL gas tester with compact size and light weight, very easy to carry and operate.



Specifications:

Brand Name:

Color: Blue

Material: ABS

Screen Size: 47 * 38mm / 1.9 * 1.5in

Sensor: Electrochemical Principle

Charging Port: Micro USB DC 5V

Sampling Pump Power Supply: DC 3V power supply

Operation t: 230mA

Short Circuit t: ≤3A

Operation Voltage: 3.7V

Maximum Open Circuit Voltage: ≤4.2V

Battery Type: BL-9C

Display Type: Segment type LCD

Operation Humidity: 15%~95%RH

Operation Temperature: -10℃~50℃

Storage Temperature: 0~40℃

Battery Working Runtime: 6 hours (no alarm)

Detection Gas: Carbon Monoxide(CO, Hydrogen Sulfide(H₂S), Oxygen(O₂), Combustible Gas(LEL)

Measurement Range: CO: 0～999ppm, H₂S: 0～500ppm, O₂: 0～30%VOL, LEL: 0～100%LEL

Resolution: CO: 1ppm, H₂S: 1ppm, O₂: 0.1%VOL, LEL: 1%LEL

Alarm Value Setting: Upper limit and lower limit alarm value can be set

Alarm Alert: Sound/vibration/flash triple alarms

TWA Alarm Value Setting: Time-weighted value, meaning the accumulated value measured within 8 hours

STEL Alarm Value Setting: Short term exposure limit

Item Size: 140 * 75 * 35mm / 5.51 * 2.95 * 1.37in

Item Weight: 270g / 9.52oz

Package Weight: 430g / 15.17oz

Package Size: 24.5 * 9 * 6cm / 9.64 * 3.54 * 2.36in



Package List:

1 * 4 in 1 Gas Detector

1 * USB Cable

2 * Screws

1 * Gas Calibration Hood

1 * Storage Bag

1 * User Manual (English)