Fixed Gas Detector

GDS102 Dual Sensor Gas Alarm

GDS102 dual sensor gas alarm

The GDS102 is a fixed dual-sensor gas alarm unit designed for reliable and cost-effective gas monitoring across a wide range of environments — from commercial buildings to heavy industrial applications that may involve hazardous area sensing. It can be used as a standalone unit or integrated within the GDS Combi CANbus addressable network system, providing flexibility and advanced control options.

Typical applications include – public buildings, boiler plant rooms, swimming pools, water treatment works, HVAC control systems, manufacturing and process plants.

  • Dual detector channels:
    • Channel 1: mV Bridge input
    • Channel 2: 4–20mA input
  • Traffic light status display with alphanumeric backlit screen
  • Three alarm stages with configurable relays
  • Data logging feature (up to 2,880 readings)
  • Front panel access for parameter setup and maintenance
  • 4–20mA analogue output (sink/source)
  • Weatherproof housing (IP64 / IP66 option)
  • Internal or remote sensor configurations available
  • Aspirated sensor option
  • 85 dB audible alarm @10cm (mutable)
  • Automatic system diagnostics and fault monitoring
  • Power supply: 24V DC or 100–240V AC (both usable simultaneously)
  • Outputs: 4 alarm/fault relays (3A @230V AC), configurable latch/unlatch
  • Operating temperature: –15°C to +50°C
  • Dimensions: 145mm (L) × 145mm (H) × 65/100mm (D)
  • Protection: IP64 standard, IP66 optional

About this product

The GDS102 is a fixed gas alarm with two detector channels, one for a mV bridge sensor and one for a 4 to 20mA transmitter, with internal, remote or aspirated sensor options. It works on its own or as an addressable unit on a GDS Combi CANbus network, and suits boiler plant rooms, swimming pools, water treatment works and process plants. We supply, install, commission and service it.

Key specifications

ChannelsChannel 1: mV bridge; Channel 2: 4 to 20mA
GasesCombustible (LEL), toxic (ppm), oxygen depletion and enrichment
Alarms3 alarm stages plus fault, traffic light display, 85 dB sounder at 10 cm
Relays4 relays (3 alarm, 1 fault), SPCO, 3A at 230V AC, latched or unlatched
Outputs4 to 20mA (sink or source), CANbus
Power24V DC (18 to 30V) and/or 100 to 240V AC, usable together as standby
Logging2,880 readings
EnclosureIP64 (IP66 over-housing option), L145 x H145 x D65 or D100 mm

Supplied, installed and serviced by Vistec

We supply, install, commission and service this equipment across Ireland. Call 01 289 7720 or email info@vistec.ie for advice or a quote.