S4 Detectors
Gent S4-720 S-Quad Heat Sensor

- Max quantity per loop
- 200
- weight
- 110g (170g with base) g
- dimensions
- Diameter=117mm: height=49.6mm
Required to operate
Needed to install, power or certify this product.

Base - Common for all S-Quad Sensors
White sensor mounts on the common white S-Quad sensor base
Overview
What it is and how it fits the system.
The Gent S4-720 is an S-Quad heat sensor, symbol H, for the Vigilon loop. It provides dedicated heat detection as an addressable loop device, with up to 200 supported per loop.
Technical overview
The S4-720 is a Gent by Honeywell S-Quad heat sensor for the Vigilon loop, identified by symbol H and designed as an addressable loop device supporting up to 200 units per loop. It functions as a dedicated heat detector within the S4 Detectors range, requiring a separate base for installation.
Weighing 110g (170g with base) and measuring 117mm in diameter by 49.6mm in height, the S4-720 is designed for compatibility with the common white S-Quad sensor base (S4-700). Optional accessories include the semi-flush mounting kit (S4-FLUSH) and removal tool kit (805580) for enhanced installation and maintenance flexibility.
The device provides dedicated heat detection as an addressable loop device, with up to 200 supported per loop. It is part of the S4 Detectors range and sub-range Detectors Only, designed for use with the Vigilon loop system. The white sensor mounts on the common white S-Quad sensor base, which is required for installation but not included with the sensor itself.
Specifications
Full technical data for this part.
| Description | Heat Sensor |
|---|---|
| Max quantity per loop | 200 |
| symbol | H |
| weight | 110g (170g with base) g |
| dimensions | Diameter=117mm: height=49.6mm |
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
Optional semi-flush fixing kit for the S-Quad device.
S-Quad Removal Tool Kit
Removal tool kit listed as an associated product for the sensor.