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Single Gas Detector

03 Series

Individuals need personal protection in hazardous areas at all times without adding extra bulky equipment, and the 03 Series can provide that kind of protection at an affordable price. The GP-03, OX-03, CO-03, and HS-03 models are personal single gas monitors designed for protection from exposure to combustible hydrocarbons, oxygen deficiency, hydrogen sulfide, or carbon monoxide.

  • Features
  • Applications
  • Approvals
  • Specification
  • Accessories
  • Interchangeable Battery
    AAA (2) Alkaline battery is standard power source, Ni-MH battery can be installed as optional choice.
  • Comfortable Wearable Design
    Well-balanced weight and shape to ensure comfort wearing. Alligator clip prevents the unit from dropping

  • LEL monitoring for gas pipeline installations.
  • LEL & CO monitoring while checking or installing gas meters.
  • O2 & H2S monitoring while working in tanks, pits, or other confined spaces.
  • CO monitoring in iron and steel plants.
  • H2S monitoring around oil fields, refineries, petrochemical.
Model GP-03 OX-03 HS-03 CO-03
Gas Detected Combustible Gases Oxygen Hydrogen Sulfide Carbon Monoxide
Detection Principle Catalytic Combustion Galvanic cell Electro-chemical cell
Detection Range 0 ∼ 100%LEL 0 ∼ 40.0% 0 ∼ 100.0ppm 0 ∼ 500ppm
Increments 1%LEL 0.1% 0.5ppm 1ppm
Preset Alarms 1st : 10%LEL
2nd : 50%LEL
OVER : 100%LEL
1st : 19.5%
2nd : 18.0%
OVER : 40.0%
1st : 5.0ppm
2nd : 30.0ppm
STEL : 5.0ppm
TWA : 5.0ppm
OVER: 100.0ppm
1st : 25ppm
2nd : 50ppm
STEL : 200ppm
TWA : 25ppm
OVER: 500ppm
Types of Alarm Gas alarms: 2 preset alarms, Over scale alarm, STEL, TWA
Trouble alarms: Sensor disconnection, Low battery, Calibration error, Clock error, System error
Alarm Method Latching Latching Latching Latching
Display of Alarm Gas alarms: Flashing LEOs, Buzzer, Flashing gas value, Vibration Trouble alarms: Flashing LEDs, continuous buzzer, display of error message
Operating Temp. & Humidity -20 ∼ +50°C [-4°F - 122°F]
0 ∼ 90%RH (Non-condensing)
-20 ∼ +50°C [-4°F ∼ 122°F]
o - 95%RH (Non-condensing)
-20 ∼ +50°C [-4°F ∼ 122°F]
16 ∼ 85%RH (Non-condensing)
Power Source 2 AAA size Alkaline battery (Optional AAA size Ni-MH battery [Eneloop])
Continuous Operation Alkaline battery: Approx.35 h
Ni-MH battery : Approx.30 h
Alkaline battery: Approx.3000 h
Ni-MH battery : Approx.2000 h
Response Time 90% response within 30 see 90% response within 20 sec 90% response within 30 sec
Ingress proof IP 67
Explosion Proof Alkaline dry battery version: Exia II CT4
Ni-MH battery version Exia II CT3
Approvals IECEx, ATEX
Dimension & Weight Approx. 57(W) x 70(H) x 26(0) mm [2.1 (W) x 2.64(H) x 0.94(0) inches] with rubber protection cover, 80g [2.8 ounces]
Function Manual LCD backlight (Automatically ON when alarming), Peak value, Data logging, Time, CAL alarm, BUMP alarm

*1 STEL and TWA alarms are available on HS-03 and CO-03 only. *2 No alarm, no light at 25°C

Standard Accessories
  • Rubber Protecttion
  • Alligator Clip
  • Alkaline Dry Battery
Optional Accessories
  • Hand Strap
  • Battery Charger
  • Filter
  • Ni-MH battery
  • Belt Clip
  • Data logger Managment Program
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