CEM CO-181 Pocket Carbon Monoxide CO Gas Meter Tester Detector Beeper Alarm

CEM CO-181 Pocket Carbon Monoxide CO Gas Meter Tester Detector Beeper Alarm
Notice:
The standard package don't include batteries.Because,the international air shipping forbid to ship liquid,powder and batteries,we can not put them in the package box.Hope you can understand buy them in your local store or supermarket.
At the same time, please forgive us that we are unable to provide the English user manual. If you need it, please contact the customer service after purchase.
Thanks for your support!

Carbon Monoxide Meters
CO-181 Carbon Monoxide Meter detects the presence of carbon monoxide (CO) and measures concentrations between 1-1000 parts per million (PPM). The Meter indicates the presence of CO by a reading on the LCD and a beeper tone. The beeper function much like clicking of a Geiger counter: Above 200 PPM, the beeper sounds continuously with the concentration of CO. From 35 PPM to 200 PPM, the beeper sounds discontinuously with the concentration of CO.
Features
CO-180
CO-181
Digital LCD Display
Auto zero
Auto/manual zero
Memory for 10 complete data sets
Record mode
LED light audible alarm
High Accuracy, quick respons
Pocket size and easy to us
Fast sampli
Max Hold
Data Hold
Auto Power Off
Above 200 PPM, the beeper sounds continuously
Size (H x W x D): 160mm x 56mm x 40mm
Weight: 180g