factory price battery operated co detector portable carbon monoxide gas detector

CA-389A-CO Carbon Monoxide Detector  (electrochemistry sensor)

Specification

1.Detection Principle: Electrochemical cell
2.Operating Voltage: 9 V
3.Alarm Indication: Audible and Visual alarm
4.Buzzer output: >85 DB at 3m
5.Operation Condition: 
Temperature:-10°C~+50°C
Relative Humidity: 30%~95 %( Non-condensing)
6.Alarm Density: 
30ppm, Alarms Not Activate Within 120minutes 
50ppm, Alarms Within 60~90 minutes 
100ppm, Alarms Within 10~40 minutes 
Display: Superbright LED Display 
7.High Quality sensor 
8.Dimensions: 100X62X32 (mm)
9.Test facility: Yes
10.Self Check Function: Yes

OEM, ODM are welcome