Description

Honeywell 2104B2131 Medium-range Infrared Gas Detector Receiver
Honeywell 2104B2131 is a medium-range open circuit infrared gas detector (receiver end Rx) of the Searchline Excel series by Honeywell. It is used in conjunction with the transmitter 2104B2081 for long-distance gas monitoring and comes with ATEX/IECEx/FM/CSA explosion-proof certifications.

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Core parameters
Brand: Honeywell
Model: 2104B2131
Type: Medium Range Receiver (Rx)
Detected gases: Methane, Ethane, Propane, Butane, Ethylene, Propylene, Ethanol, Methanol, etc.
Measurement range: 0–5 LEL·m
Detection distance: 40–120 m (medium range)
Response time: T90 < 3 s (normal operation)
Power supply: 18–32 VDC (nominal 24 VDC), maximum 10 W
Output signal: 4–20 mA; optional Modbus RS485
Operating temperature: -40°C to +65°C
Humidity: 0–99% RH (no condensation)
Shell / Protection: 316 stainless steel, IP66/IP67
Size / Weight: Approximately 235 mm, 3.5 kg
Certifications: ATEX, IECEx, FM, CSA (explosion-proof)
Condition: New original equipment, 12-month warranty
Key features