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RKI Instruments 03 Series H2S Single Gas Monitor 73-0062

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RKI's H2S Monitor can be operated continuously for at least 3,000 hours on (2) AAA size alkaline batteries. The GP-03 operates for 35 hours on alkaline and 30 hours on rechargeable Ni-MH. The 03 models have 2 preset alarms that are user adjustable. Each version is also equipped with visual, audible, and vibration alarms as standard. The RKI 03 Series H2S Monitor is great in areas of hazardous material, mining, tunnels, refineries or petrochemical, water and wastewater treatment, pharmaceuticals, utilities, chemical plants and fire services.

Applications: Hazardous material, Mining, Refineries/petrochemical, Water/wastewater treatment, Pharmaceuticals, Utilities, Chemical plants, Fire services

Key Features:

  • Operates 3,000 hours on alkaline batteries (GP-03 operates 35 or 30 hrs on alkaline/Ni-MH)
  • Pocket size 2.1 in. (W) x 2.6 in. (H) x 0.9 in. (D)
  • Lightweight (2.8 oz.)
  • Impact, dust, and water resistant (IP-67)
  • Replaceable rubber boot
  • Datalog from 5 to 300 hours with adjustable intervals
  • Audible / visual / vibration alarms
  • Automatic backlight
  • Low battery alarm


  • Hydrogen sulfide (H2S)
  • Detection principle: Electrochemical
  • Detection range: 0-100 ppm
  • Alarm set points: 1st - 10 ppm 2nd - 30 ppm TWA - 1 ppm STEL - 5 ppm Over - 100 ppm
  • Alarm types: Gas alarms: 1st and 2nd (user adjustable), OVER alarm, STEL and TWA Trouble alarms: Sensor connection, low battery circuit failure, and calibration range error
  • Gas sampling: Diffusion
  • Response time: T90 in 30 seconds
  • Accuracy: 5 percent of reading or å± 5 ppm H2S
  • Data logging: 10 second intervals = 5 hours, 5 minute intervals = 150 hours, 10 minute intervals = 300 hours Instrument records alarms, alarm trends, gas readings, calibration & bump test history, instrument information and settings
  • Continuous operation: Alkaline dry cell: more than 3,000 hours (at 25å¡C, no backlight)
  • Safety rating: ATEX/IECEx approved. CSA classified, ?ÛÏC/US?۝, as intrinsically safe, Class I, Division 1, Groups A, B, C, D (pending)
  • Enclosure: Dust and water resistant with IP-67 rating
  • Display: Digital LCD, gas name & concentration, auto backlighting during alarm, operation icon, battery icon
  • 3-year warranty

Monitor Includes:

  • Rubber protective boot
  • Alkaline batteries
  • Alligator clip
  • Wrist strap
  • Datalog software

Optional Accessory: Downloading cable, USB / IrDA adapter

Part Numbers:
73-0062 - Monitor only


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