

Multi Sensor Detector – Addressable Optical/Heat Detector IQ331SH
0 out of 5
The IQ331SH is a point composite smoke and temperature fire detector, combining a smoke sensor with dual heat sensors in a single unit. It delivers the performance of both a photoelectric smoke detector and a heat detector, connected via a non-polar two-wire bus to a compatible fire alarm control panel.
Key Features:
- LPCB & CPR approved
- Combined smoke and heat detection sensor
- Soft addressing, rewritable on-site via coder
Key Specs:
- Operating Voltage: Loop 24V (18–28V)
- Standby Current: <0.4mA | Alarm Current: <1.5mA
- Class: A2R & A2S
- Fire LED: Red — flashes during polling, illuminates during alarm
- Programming Range: One address within 1–324
- Wiring: Loop, two wire, polarity-insensitive
- Environmental Temperature: -10°C to +55°C
- Relative Humidity: ≤95%, non-condensing
- Material Enclosure: ABS
- Dimensions: Ø100mm, 60mm height (with base)
- Mounting Hole Distance: 44.5mm–64.3mm
- Weight: ~123g (with base)
Documents and Resources
- Size Guide
- Reviews (0)

| size | chest(in.) | waist(in.) | hips(in.) |
|---|---|---|---|
| XS | 34-36 | 27-29 | 34.5-36.5 |
| S | 36-38 | 29-31 | 36.5-38.5 |
| M | 38-40 | 31-33 | 38.5-40.5 |
| L | 40-42 | 33-36 | 40.5-43.5 |
| XL | 42-45 | 36-40 | 43.5-47.5 |
| XXL | 45-48 | 40-44 | 47.5-51.5 |





Reviews
There are no reviews yet.