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DC3V alkaline batteries combination smoke and carbon monoxide alarm
SR-821THS Photoelectric smoke and CO detector
SR-921EHS-BT CO Detector
(Friendly Tips:There are two types of this product, please select what you want according to your needs, welcome your enquiry!)
Main features:
| MCU processing |
| Low power consumption design,battery used for over 3 years |
| On-top battery compartment,easy battery replacement |
| Tamper resistant pins for battery |
| Low battery warning |
| Shockproof design,suitable for vehicle use |
| Auto check malfunction in smoke chamber |
| Test and hush button |
| Auto reset |
| Low battery warning |
Technical specification:
Model No. | SR-821PHS | SR-821THS | SR-921EHS-BT |
Operating voltage | DC3V(2x1.5V AA alkaline batteries) | ||
Static current | ≤10uA | ||
Alarm current | ≤25mA | ||
Alarm output | Sound &Flash alarm | ||
Sensitivity | 0.16dB/m(±0.05dB/m) | 0.16dB/m(±0.05dB/m)/150PPM±50PPM | 150PPM±50PPM |
Sound level | 85dB/3m | ||
Installation | Wall or Ceiling mounted | ||
Working environment | -10℃~+50℃(≤95%RH No congelation) | ||
Dimension | 110*45mm | ||
Product Pictures:
Q1:Are you manufacture or trading company?
A1:We are a professional manufacture specialize in fire alarm products.
Q2:What is the moq?
A2:As usual,there is ready stock for our regular & hot selling models.
So any order quantity is welcome.
Q3:Can I customize LOGO and customized functions?
A3:Yes you can. Packaging, products, instructions can be printed logo. and functions we have professional R&D team to support best service.
Q4:How about the quality of your products?
A4:Our raw materials are purchased from qualified suppliers.
Q5:How long is the warranty time of the products?
A5:The warranty period is 2 years from the factory,if there are individual quality problems,
we will replenish the customer in the next batch of orders.