This device is designed to warn and protect worker from a dangerous place where
oxygen level is very low so people can be in a dangerous situation unconsciously.  This portable device operates 24 month or more without replacing a battery or sensor.
         Small size and light weight make this detector ideal for personal use.  When a concentration of hydrogen sulfide reaches a dangerous level, this detector automatically vibrates and warn people of a dangerous level visually and audibly.  User can easily do auto-zero and calibrate this device with help of high quality microprocessor installed.  Loud audible alarm and high-brightness backlight are among its features.  Maximum, minimum hydrogen sulfide concentration and current time is setting are also available.

         This detector also monitor STEL (Short Term Exposure Limit ) and TWA (Time Weight
Average) and Instant gas alarms.

Application:
Portable & Fix gas detector, Gas Monitor, Petrochemical, Mine & ETC

TECHNICAL SPECIFICATIONS :

Range: 0 to 500 ppm
Detecting gas :  Hydrogen Sulfide (H2S)
Sensor type :  Electrochemical
Sampling method :  Diffusion
Response time :  T90 in 30 seconds
Power :  3.0V Coin Battery (CR2450)
Alarm indicators : Cleary advises alarm levels both audibly and visually
Audio alarm : High output Buzzer (80dB at 10 cm)
Visual alarms :  Flashing back light visible from all angles
Vibrator alarm : Pulses warning in gas alarm conditions and status alarms
Alarm point :  0-100 ppm, 1st : 10 ppm, 2nd : 30 ppm, TWA : 10 ppm, STEL : 15 ppm
Other alarms : Low battery and sensor fail alarm
Calibration : Zero calibration, span calibration (20.9% O2)
LCD Display : Concentration, current time, battery status and alarm level encountered
Backlight : Alarm conditions (auto) and on demand
Field option : Set real-time clock
Operating temperature : -20 ̊ C ~ +50 ̊ C
Humidity : 15% ~ 90% RH (non-comdensing)
Size : 48.5 x 84 x 32.5 mm
Case : High-impact Plastic, Dust proof and Weather Resistant

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