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IGD TOC-903-X5 Dual Gas Detector Transmitter
Item #:
TOC-903-X5
Brand:
IGD
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TOC-903-X5 Dual Gas Detector Transmitter by IGD
This is the TOC-903-X5 – a detector transmitter approved for ATEX Zone 1 and 2 flammable environments and Zone 21 and 22 dust environments, that can be easily integrated into our 2-Wire Addressable system, or used as a standalone 4-20mA transmitter.
The TOC-903-X5 brings a variety of new tools to the table featuring non-intrusive one-person calibration, and accommodating up to 2 independent sensors, 2 analogue outputs, relays and 2-Wire digital communication. Its ability to monitor for over 400 flammable, toxic or asphyxiant gases ensures suitability for a huge variety of applications cementing the TOC-903-X5 as the most versatile detector on the market. Simple to install, easy to use, and backed by more than a century of innovation.
Unparalleled Versatility
- 2 Independent 4-20mA outputs.
- 2-Wire Sentinel+TM digital communication.
- 1 Fault and 2 alarm relays.
Fully Certified
- UKCA, ATEX and IECEX certified.
- Built to withstand Zone 1 and 2 hazardous areas.
Easy to Use
- Intuitive digital display, concentration, alarms and fault status
- Plug-and-Play sensors.
Peace of Mind
- Designed and manufactured in the UK.
- Backed up by more than a century of expertise and our 10-year guarantee.
- All compliance is supported by 3rd party certification.
Features
- Magnetic Wand: Our Magnetic Wand operates as a stylus allowing you to access the controls without removing the ATEX housing. With the Magnetic Wand, personnel can perform a one-person calibration in ATEXzoned areas without a hot works permits.
- At-a-Glance Status Checks: Our At-a-Glance LED status indicator is bright enough to be visible even in dim and dusty conditions and offers an immediate indication of the status of the environment. A green smile means all is well, a red frown indicates a hazard, and an orange frown indicates a fault.
- ATEX Stopping Plug: For unused ports on the X5 to keep ATEX rating. For example, if the sensor isn't installed in the port.
- Plug-and-Play Sensors: The TOC-903-X5 automatically updates itself when one of our plug-and-play sensors is fitted. Our industry-leading long-life sensors do the work for you, removing the need for setup. With sensors for over 400 flammable gases, the TOC-903-X5 maximises safety and minimises ongoing costs.

Power | 18 to 30V DC |
Weight | 1.1Kg (Plus Fitted Detectors) |
Temperature Range | -20° to +55°C (-4° to +131°F) |
Humidity | 0% to 95% RH Non-Condensing |
Sensor Housing Material | Sensor, Stainless Steel 316 S16 |
Cable Entry | 5 × M20 × 1.5 See Drawing |
Ingress Protection | IP66 |
Mounting | Wall Mount |
Junction Box Housing Material | Copper Free Aluminium Alloy Epoxy Coated Option for Marine Paint Finishes |
Explosion Protection | II 2G Ex db IIC T6/ T5 Gb II 2D Ex tb IIIC T85° / T100°C Db Ta = -20°C to +40°C/+55°C |
Electrical Outputs | 2 off independent 4-20mA outputs auto ranged to suit fitted detector(s) 2-Wire Sentinel+™ Addressable input/output(s) 1 Single Pole Fault Relay 2 SPCO Alarm Relays Relays 4A at 24V DC Non Inductive Aux Power Connection 0.5A Max |