S4 Audio & Visual Only
Gent S4M-V-VAD-LPR Voice Sounder + Low Power Red VAD
- Markings
- V/RVAD/LP
- Operating voltage
- 35V - 48V
- Vmax
- 48 V
- Ic max
- 0.8 A
- Vmin
- 35 V
- Il max
- 50 uA
- Sounder current
- 2 mA average 4.5 mA maximum in Turbo mode (Refer to Battery Standby and Loop Load Calculator Tool)
Required to operate
Needed to install, power or certify this product.

Base - Common for all S-Quad Sensors
Mounting base for the S4M AV device (base for all S4 sensors).

Programmer Base for S4/T/M and S3 Voice Sounders
Programmer base used to load custom voice messages into the Voice Sounder.
Overview
What it is and how it fits the system.
The Gent S4M-V-VAD-LPR is an S-Quad S4M Voice Sounder with Low Power Red VAD, a ceiling-mounted audio-visual device combining an EN54-23 compliant visual alarm device with voice sounder functions and no detection technology. It runs on a 35V-48V loop (40V nominal) with a maximum capacitor current of 0.8A, providing an AV solution for areas that require it.
Technical overview
S4M-V-VAD-LPR is a Gent by Honeywell S-Quad S4M Voice Sounder Low Power Red VAD, a ceiling-mounted audio-visual device combining an EN54-23 compliant visual alarm device with voice sounder functions and no detection technology. It operates on a 35V-48V loop with a nominal voltage of 40V and a maximum capacitor current of 0.8A, designed for low-power visual alarm applications requiring integrated voice capabilities.
The device features a sounder current of 2 mA average and 4.5 mA maximum in Turbo mode, with a visual alarm device power setting configured as Low. It is compatible with the S4-700 base, S4-705 White IP21C Plate, and requires the S4T-BASE-PROGRAM for custom voice message programming, while supporting MCC/MCB/LPC card versions ≥4.61 and LPC ≥4.54 for Vigilon systems. LPCB approved, it provides a dedicated AV solution for areas needing compliant visual and audible signaling without detection functionality.
Specifications
Full technical data for this part.
| Description | S4M Voice Sounder Low Power Red VAD |
|---|---|
| Markings | V/RVAD/LP |
| Operating voltage | 35V - 48V |
| Vmax | 48 V |
| Ic max | 0.8 A |
| Vmin | 35 V |
| Il max | 50 uA |
| Vnom | 40 V |
| Is max | 1.25 A |
| Vso max | 16 V |
| Zc max | 0.13 Ω |
| Vso min | 8 V |
| Sounder current | 2 mA average 4.5 mA maximum in Turbo mode (Refer to Battery Standby and Loop Load Calculator Tool) |
| Vad power setting | Low |
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 Removal Tool Kit
805580 Removal tool kit (supplied with Dust Cover Remover part)

S-Quad Base Label Plate (pack of 10)
805576 Label plate (10 pack)
