Addressable Photoelectric Smoke Detector – IQ331S
The IQ331S is a point-type photoelectric smoke detector with an internal microprocessor, supporting electronic addressing via a two-wire bus connected to a compatible fire alarm control panel. It provides real-time smoke concentration data to the panel and can receive and execute control commands from it.
Key Features:
- Compensates for temperature, humidity, and dust drift; checks for sensor faults
- Non-polarity, two-wire bus for easy installation and maintenance
- Remote indicator output and patented smoke chamber to reduce false alarms
- Simple addressing via portable coder
- Single LED with 360° viewing
- Suited to environments with rapid temperature changes, dirt, or smoke
- LPCB certified
Key Specs:
- Operating Voltage: Loop 24V (18–28V)
- Standby Current: <0.3mA
- Alarm Current: <1.5mA (without remote indicator) / <3.5mA (with remote indicator)
- Fire LED: Red — flashes during polling, illuminates during alarm
- Programming Range: One address within 1–324
- Environmental Temperature: -10°C to +55°C
- Relative Humidity: ≤95%, non-condensing
- Dimensions: Ø100mm, 58mm height (with base)
- Mounting Hole Distance: 44.5mm–64.3mm
- Weight: ~128g (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.