S4 Detectors
Gent S4-711-V-VAD-HPR Sensor, Voice Sounder & Red VAD

- Load factor per device
- 17.5
- Max quantity per loop
- 55
- Vad performance in nano
- All the 'High perform.' and 'Standard perform'. S-Cubed devices and (HP) S-Quad devices all revert to LOW VAD performance devices when installed in a Nano panel based system. Only the LOW VAD setting of the device is used in a Nano system.
- Approx Weight
- 0.11Kg (0.17Kg with base) Kg
- Operating Temperature
- -10°C to +50°C
- EN54 certification
- Smoke Part 7, Heat Part 5, VAD Part 23, Sounder & Voice Sounder Part 3, Isolator Part 17, Input/Output Part 18
- Dimensions (diameter / height, mm)
- 49.6 (63.8 with base) / 117 (140 with base and IP 21 plate) mm
Required to operate
Needed to install, power or certify this product.

IP21 base and base cover (pack of 1)
VAD requires the IP21 base/mounting plate to achieve IP21 and EN54-23 compliance.

Base - Common for all S-Quad Sensors
S-Quad sensor plugs into its dedicated S4-700 base

IP21 base covers (pack 5)
VAD/Sounder S-Quad must use Base with IP21 Plate to meet Standards

34000 S-Quad Adapter Base
Detector listed for use with the S4-700-34K adapter base.
Overview
What it is and how it fits the system.
The Gent S4-711-V-VAD-HPR is an S4 (S-Quad) loop-powered device combining a dual optical and heat sensor with a voice sounder and a high-performance red Visual Alarm Device. It delivers detection, audible voice alarm and high-performance visual signalling from one addressable unit. With a load factor of 17.5, up to 55 are supported per loop.
Technical overview
The Gent S4-711-V-VAD-HPR is a loop-powered S4 (S-Quad) combined detector that integrates dual optical and heat sensing with a voice sounder and a high-performance red Visual Alarm Device. It provides fire detection, audible voice alarm and visual signalling from a single addressable unit, carrying a load factor of 17.5 with up to 55 supported per loop.
The unit operates on an addressable loop circuit that carries a combined maximum of 127 addressable devices, including fire sensors, alarm sounders, manual call points and interface units. Mounting requires the S4-701 IP21 base, with S4-705 base covers fitted to reach IP21 and EN54-23 compliance, while the common S4-700 base is shared across S-Quad sensors. It supersedes the earlier S4-711-ST-VO.
It carries EN54 certification spanning smoke, heat, VAD, sounder and voice sounder, isolator and input/output functions, corresponding to EN54-3, 5, 7, 17, 18 and 23. The detector operates across an ambient range of -10°C to +50°C.
Specifications
Full technical data for this part.
| Load factor per device | 17.5 |
|---|---|
| Max quantity per loop | 55 |
| Vad performance in nano | All the 'High perform.' and 'Standard perform'. S-Cubed devices and (HP) S-Quad devices all revert to LOW VAD performance devices when installed in a Nano panel based system. Only the LOW VAD setting of the device is used in a Nano system. |
| Approx Weight | 0.11Kg (0.17Kg with base) Kg |
| Operating Temperature | -10°C to +50°C |
| EN54 certification | Smoke Part 7, Heat Part 5, VAD Part 23, Sounder & Voice Sounder Part 3, Isolator Part 17, Input/Output Part 18 |
| Dimensions (diameter / height, mm) | 49.6 (63.8 with base) / 117 (140 with base and IP 21 plate) mm |
| EN54 part/class | EN54-3, 5, 7, 17, 18 & 23 |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
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