“Any dispute / Direct negative feedback” before contact means “Buyer bad” !! And not welcome such buyer !! Please go away !! ( Because business is cooperation ,not fight each other ) .
if any problem found ,please contact to solve by a friendly way .
Shipping without tracking number , only accept to refund if goods not delivered in 60 days . If you can not wait 60 days , please dont buy !!! To Brazil , buyer needs to wait for 90 days.
No packing box included to ship , product is put in envelop to ship .
Feature:
- Brand New and High Quality
- LCD Displayer with a Blue Ground Light and Loud 85 decibel alarm
- 85 db alarm sound
- The low battery warning function;
- CE and EN50291 certification
Specification
This product is carbon monoxide detector. It’s the only battery-operated alarm that includes a backlight digital display feature. The backlit digital display feature allows for easy viewing of carbon monoxide levels from 001-999 PPM (parts per million).When concentration of the leaked carbon monoxide reaches the given alarm level, the detector LED flashes red and buzzer gives out alarm sounds. This product can be well used in villas, factories, shopping malls, warehouses, office buildings etc. indoor places.
Technical Parameter
power supply: 3 AA batteries ( no include)
Alarm concentration:50 ppm, the alarm in 60–90 minutes;
100 ppm, the alarm 10 to 40 minutes;
300 ppm, the alarm in three minutes
Quiescent Current: <35uA (may work for a year)
Alarm current: <20mA
Low voltage warning threshold voltage: 3V ± 0.3 V
Alarm sound: in front of more than three meters at 85 db Scope of work:0-45 ° C, 20 ~ 95% R.H, without condensation
Static instructions:Issued every 30 seconds a “jack” sound, LCD display “Lb”
Test button:Press a few seconds an alarm sound alarm shows normal
size:Diameter 95 mm height 37 mm
Weight: 120g
Package: 1x co carbon detector
