- Manufacturer : Gent by Honeywell
- Part Number : S4-771-S
- Dual Optical Smoke & Heat Multi-Sensor With Sounder
- Part Of The Gent S-Quad Detector Range
- Designed For Use With The Vigilon Range Of Panels
- This is the replacement part for the Gent S4-771 Unit
- Requires S4-700 Detector Base For Installation - Not Included (See Related Products Below)