SMART SENSOR 4 in 1 Gas Detector H₂S and CO Monitor Industrial Digital Handheld Toxic Gas Carbon Monoxide Detector Carbonic Oxide Hydrogen Sulfide Gas Tester 0-999ppm with LCD Display Sound and Light

the level of the alarm, the alarm will sound, light and vibrate. 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: SMART SENSOR
Color: Orange
Material: ABS Plastic
Display: Color LCD Backlight Display
Screen Size: 47 * 38mm / 1.9 * 1.5in
Input: 100-240V, 50-60Hz
Sensor: Electrochemical Principle
Duty Cycle: 2 Years
Explosion 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 Vibration 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)
Power Supply: 1 * Rechargeable BL-9C Lithium-ion 3.7V 2500mAh Battery (Built-in)
Operating Temperature: -10～50℃ / 14～122℉     
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

Package List:
1 * 4 in 1 Gas Detector
1 * USB Line
1 * Storage Box
1 * Use Manual (English)