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High quality best sell dual sensor smoke and heat sensor for fire alarm
SR-820DHS Independent Photoelectric smoke & heat alarm
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
57ºC(135ºF)fixed temperature alarm
High temperature alarm
Immediately report to the police when temperature more than 57 degrees
Technological details:
| Model No | SR-820DHS |
| Operating voltage | 9V battery |
| Interconnection | N/A |
| 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 | 128*38mm |
Shenzhen SUMRING Technology Co. Ltd is a Hi-tech enterprise specialized in the research & development of security and fire alarm products, including PIR detector, smoke detector, gas leakage detector, Carbon Monoxide detector, fire alarm bell/strobe siren, manual call point, magnetic contact ,BT Module etc. Enter more
Our certification:
1. Can I get one sample for test before big order?
A: Sure,you can. Please leave a message we will contact you soon.
Q2. Can I get the smoke & heat alarm less than MOQ?
A: Yes, you can and the final price will depend on your quantity.
Q3. Can I print my logo on the smoke & heat alarm?
A: Yes, please contact us.
Q4, What"s the lead time when I place bulk order?
A: Around 25 days.
Shipping information:
* Express(UPS, DHL, Fedex, EMS, etc) is available.
* Sea and Air delivery is available
* welcome your agent to deal with our products .