Discontinued Product

The GDA 2560 Flammable gas sensor [Hydrogen, Methane, Butane, Propane, Acetylene, and Ammonia] is a 3 wire (24 VDC) 4-20 mA device. This gas sensor is designed to be used in Non-hazardous areas. It has an electro-resistive catalytic sensing element which is temperature controlled and easily replaceable. 

Designed, manufactured and supported locally in Australia.


This product is being replaced by the SENKO SI-100C-009 Combustable Sensor

SENKO SI-100C: Fixed Gas Detector

The sensor element is on a pluggable lead allow ease of replacement. The flammable gas sensor's electronics are housed in a robust ABS sun tolerant plastic enclosure. the sensor head and its electronics are housed in a metal enclosure giving it excellent RFI and EMC compatibility.

  • 0-100% LEL Range
  • 4-20 mA o/p
  • Low cost replaceable gas sensor element
  • Easy to install
  • Easy to calibrate (only gas and multimeter required)
  • ABS sun tolerant housing
  • Australian Factory Certificate of Calibration

Made in Australia and Supported in Australia

Related Products

Sewage Treatment Plant Monitoring

The presence of Hydrogen Sulphide  can be detected by using the Gas Detection Australia GDA 2529 gas sensor to detect leaks of Hydrogen Sulphide  and evoke deodorisation plant. The SI-100C gas sensor can be used to monitor for leaks of LEL levels of methane gas. In digester applications Carbon dioxide can be detected using the GDA 4350  

Designed, Manufactured and Supported in Australia.

Specification NameSpecification Value
Detectable GasesFlammable Gas
Detectable Gas RangesHydrogen, Methane, Butane, Propane, Acetylene, Ammonia
Power Requirements+24 VDC
Output Types4-20 mA
Power Consumption<25 mA @ 24 VDC
Output SpecificationsMax loop impedance 1 kΩ @ 24 VDC
Connection4 pin plug connector
Wiring3 core 18 AWG with overall screen
Operating Temperature-10°C to 40°C
Operating Humidity15% to 90% RH peak non condensing
Accuracy of Reading0.5% of reading + 1% FSD
Warm Up Time30 seconds
Response TimeT90 = 45 seconds at STP
Zero Drift< 0.1% / 30 days
Calibration Drift< 0.25% / 30 days at Standard Temperature and Pressure
Sensor TechnologyCatalytic Cell
Calibration RequirementAnnually if sensor operated at STP
Dimensions122 x 85 x 62 mm (H, W, D)
Enclosure MaterialABS plastic
Enclosure RatingIP56 with sensor element IP43
Cable Entry2 x M20 top entry

GDA 2560 Flamable Gas Sensor

  • GDA 2560 Fixed Gas Sensor Trasmiter & Module
  • 1x M20 to 20mm Conduit Adaptor
  • User Manual
  • Australian Factory Certificate of Calibration
Part Number Gas Range Replacment Sensor Module
2560-001 Methane (CH₄) 0-100% LEL 2560-001M
2560-004 Propane (C₃H₈)
2560-013 Acetylene (C₂H₂) 2560-013A
2560-014 Hydrogen (H₂) 2560-014H
2560-015 Ammonia (NH₃) 2560-015N



Part Number Image Description
GC01-001 Gassing Cap with 500mm Length vinyl tubing
2500-005 4 x 10-24 x 3/4 (T25) Tamper Proof Security Machine Screws for GDA 2500/2600 Series Lid. incl. Wrench Key