- Smoke and CO 2-in-1
- 10 years battery life
- UL217/UL2034 listed
- Low battery warning
- Easy installation
- Loud 85db Buzzer
AJ-939 UL Smoke and CO Combo Detector
1. 2 In 1 Combination Smoke/Carbon Monoxide Detector, can detect both smoke and carbon monoxide, combine two function in one device, reduce the cost
2. DC 3V bulit-in lithium battery with 10 years battery life, no need to cable connect, be convenient to install, also can save the battery cost and install cost
3. Big test button for easy recommended monthly testing, when you want to test the device, no need to take it off, just need a tool to press it.
4. ETL certification with UL 217/UL 2034 test standard, open the business door for USA and Canada market.
Three different designs with patent for your choose, which is Uniqueness.
Aj-933, Aj-938, Aj-939
|Working voltage||DC3V bulit-in lithium battery|
|Battery life||10 years|
|Low battery threshold||2.5±0.1V|
|Alarm mode||Siren with flash(Buzzer & Red LED)|
|Detect||smoke and carbon monoxide|
|CO Alarm concentration:||70ppm:60~240min|
|Execute Criterion||UL217 / UL2034|