S4 Self Test Detectors
Gent S4T-720 Self-Test Heat Sensor
- Operating voltage
- 35V - 48V
- Ambient operating temperature
- -10 °C to +50 °C
- Storage temperature
- -20 °C to +65 °C
- Relative humidity
- 95 % non-condensing (+5 °C to +45 °C)
- Ingress protection
- IP21C
- Enclosure material
- Terluran GP-35 (ABS) for outer housing
- Dimensions
- Sensor head: 117 mm diameter by 63 mm height (with Base the height increases to 70 mm)
Required to operate
Needed to install, power or certify this product.
Base - Common for all S-Quad Sensors
Mounting base common to all S-Quad Self-Test sensors
Overview
What it is and how it fits the system.
The Gent S4T-720 is an S4 SELF-TEST Heat Sensor from the S-Quad Self-Test (S4T) series, featuring the patented Self-Test capability and Bluetooth Low Energy for testing via the CLSS app at up to 10m. It operates on a 35V-48V loop across -10°C to +50°C and is rated IP21C. The ABS sensor head measures 117mm in diameter by 63mm high and weighs 152g.
Technical overview
The Gent by Honeywell S4T-720 is an S4 SELF-TEST Heat Sensor from the S-Quad Self-Test (S4T) series, featuring patented Self-Test capability and Bluetooth Low Energy for testing via the CLSS app at up to 10m. It operates on a 35V-48V loop across an ambient temperature range of -10°C to +50°C and is rated IP21C for ingress protection. The ABS sensor head measures 117mm in diameter by 63mm in height and weighs 152g.
This device supports air velocities from 0 to 20 m/s for fire detection and withstands surrounding air movement of 0 to 1.5 m/s. Its heat self-test function operates within an expected temperature range of 0 to 40°C, with a maximum of 60 heat tests over its lifespan. Storage temperature ranges from -20°C to +65°C, and it tolerates 95% non-condensing relative humidity between +5°C and +45°C. The enclosure is made from Terluran GP-35 (ABS) and is available in white (RAL 9010) or black (RAL 9005).
Specifications
Full technical data for this part.
| Operating voltage | 35V - 48V |
|---|---|
| Ambient operating temperature | -10 °C to +50 °C |
| Storage temperature | -20 °C to +65 °C |
| Relative humidity | 95 % non-condensing (+5 °C to +45 °C) |
| Ingress protection | IP21C |
| Colour | White : RAL 9010 Black : RAL 9005 |
| Enclosure material | Terluran GP-35 (ABS) for outer housing |
| Dimensions | Sensor head: 117 mm diameter by 63 mm height (with Base the height increases to 70 mm) |
| Weight | Sensor head only: 152 g (with Standard base - 212 g) |
| Bluetooth range | 10m |
| Air velocity for fire detection | 0 to 20 m/s |
| Air velocity around device | 0 to 1.5 m/s |
| Heat self test temperature range | 0 to 40 °C expected |
| Maximum number of heat tests | 60 (expected maximum of 4 Self-Tests and 4 tests/ year for 14 years) |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
Enhancements (optional)
Optional additions — this product works without them.
S-Quad Semi-Flush Mounting Kit
Semi-flush mounting kit for S-Quad Self-Test device
Remote LED (for use with common base S4-700)
External repeat LED driven by device I/O