GTYQ-AT0503D Carbon Monoxide and Gas Detector

  • Explosion proof and dust ignition resistant enclosure protection
  • LCD display, concentration value can be checked on site
  • Supports XBUS bus and 4~20mA analog signal communication methods
  • Standard sound and light interface, can expand sound and light alarm output on site
  • Double outlet interface, convenient for installing wiring and connecting audible and visual alarms


  • Can replace any manufacturer’s three-wire or four-wire 4~20MA branch detector
  • Replaceable XBUS two-bus detector
  • Using digital sensor components, on-site calibration is not required when replacing components


> Product Parameters


Detection object Methane, propane, isobutane, hydrogen and other flammable gases
Measuring range (3~100)%LEL
Response time <15s
Detection principle Catalytic combustion type
Sampling method Free diffusion type
Rated voltage DC24V (supports DC14V~32V ultra-wide power supply)
Power consumption ≤0.9W
Communication method XBUS 2 / 4 bus and 4 to 20 mA
Communication distance The XBUS bus ranged from 1500m / 4 to 20 mA 1200m
Alarm output Sound and light alarm output 50mA
Outlet hole specifications Two M26*1.5 internal thread ports (pipe thread 3/4″ and NPT3/4″ optional)
Installation method Wall installation, pipe installation, ceiling installation
The main material Aluminum alloy
Explosion-proof level Ex db ⅡC T6 Gb / Ex tb ⅢC T80℃ Db
ambient temperature (-40~70)℃
High air pressure (86~106) kPa
Relative humidity ≤95% (no condensation)


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