Standalone & network& interconnected optional
Smoke & Heat Detector
SR-820D Series
SR-820DHS Independent Photoelectric smoke & heat alarm
SR-820DHM-AC Wireless interconnected photoelectric smoke &heat alarm
SR-820DHR Wireless photoelectric smoke &heat alarm
SR-820DHW-AC Wireless interconnection photoelectric smoke &heat alarm
Main Features:
Battery operated or AC power with backup battery
Photoelectric sensing technology
Lower battery indication
Loud 85dB audio alarm
Instant test button
MCU processing
Test and hush button
Interconnection function
57ºC(135ºF)fixed temperature alarm
Execute criterion: EN54-4,UL539,EN14606; UL217
Model No. | SR-820DHS | SR-820DHM-AC | SR-820DHR | SR-820DHW-AC |
| Operating voltage | 9V battery | AC110/220V(9V backup battery) | 9V battery | AC110/220V(9V backup battery) |
| Interconnection | N/A | Up to 40 pc smoke detectors | N/A | Install within the radius of 200 m |
| Code form | N/A | N/A | 2262/1527 | 2262 |
| Sending frequency | N/A | N/A | 433MHz | 433MHz |
| Radio distance | N/A | N/A | 200 m(open area) | 200 m(open area) |
| Alarm temperature | 57℃ | |||
| Sensitivity | 2.06%ft±1.3%ft | |||
| Sound level | 85dB/3m | |||
| Installation | Wall or Ceiling mounted | |||
| Working environment | -10℃～+50℃(≤95%RH No congelation) | |||
| Dimension | ф128*38mm | |||
SR-504 Heat detector
2 wire; Dual LED indication
SR-502 Heat detector
2 wire & 4 wire optional;
SR-503 Heat detector
2 wire & 4 wire optional;