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, light and vib-rate. High precision portable CO, H2S, O2 and LEL gas tester with compact size and light weight, very easy to carry and operate.

Features:
Detect 4 kinds of gas: carbon monoxide(CO), hydrogen sulfide(H2S), oxygen(O2) and combustible gas(LEL).
Continuously monitor the CO, H2S, O2 and LEL gas concentration in the surrounding environment with professional and accurate measurement.
Sound & light vib-ration alarm works when one of the CO, H2S, O2 & LEL gas concentration reaches the level of the alarm.
Can set automatic shutdown time and concentration of alarm value.
Large color LCD display with backlight for easy reading.
Can connect to a sampling pump to operate in closed place.
Can be widely used in shipping, mining, oil exploitation, chemical, gas pipeline, tunnel construction, coal, metallurgy, paper, fire, municipal, textile and other industries.

Specifications:
Brand Name: SMART SENSOR
Color: Orange
Material: ABS Plastic
Display: Color LCD Backlight Display
Screen Size: 47 * 38mm / 1.9 * 1.5in
Plug: US + EU
Input: 100-240V, 50-60Hz
Sensor: ElectRo-chemical Principle
Duty Cycle: 2 Years
expl-osion Proof: √
Protection Grade: IP65
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
Accuracy: CO: ±10%, H2S:±5%, O2: ±3%FS, LEL: ±5%FS
Alarm: Sound & Light vib-ration Alarm (Alarm value can be set)
Alarm Point: Low Alarm Point CO: 35ppm, H2S: 10ppm, O2: 19.5%VOL, LEL: 10%LEL
High Alarm Point CO: 70ppm, H2S: 20ppm, O2: 22.5%VOL, LEL: 20%LEL
Alarm Sound: up to 80dB
Response Time: Instantaneous
Warm-Up Time: < 20 Seconds
Continuous Operation Time: 6 hours(slightly vary with working condition)
pow-er sup-ply: 1 * Rechargeable BL-9C Lithium-ion 3.7V 2500mAh Ba-tte-ry (Built-in)
Operating Temperature: -10~50°C / 14~122°F
Operation Humidity: 15%~95%RH (non condensation)
Product Size: Approx. 140 * 75 * 43mm / 5.5 * 3.0 * 1.7in
Size of the Storage Box: 230 * 205 * 50mm / 9.1 * 8.1 * 2.0in
Product Weight: Approx. 249g / 8.8oz
Package Size: Approx. 25.5 * 21 * 5.5cm / 10.0 * 8.3 * 2.2in
Package Weight: Approx. 753g / 26.6oz