SUPCO CO1000 Carbon Monoxide Meter Measure CO quick and easy in working and living environments. Applications ? Check dangerous CO levels ? Identify malfunctioning equipment Features/Benefits ? Backlit LCD ? Automatic calibration ? Max Hold and Data Hold ? Auto Power Off ? Audible Alarm - From 35 PPM to 200 PPM,the beeper sounds periodically - Above 200 PPM, the beeper sounds continuously Measurement range 0 to 1000 PPM Measurement Resolution 1 PPM Accuracy 5% or 10 PPM (0-100 PPM) 10% 10 PPM ( 100PPM) Warm Up Period 2 Seconds Operating Temperature 32F to 122F (0C to 50C) Storage Temperature -22F to 140F (-30 to 60C) Operating Humidity 0-99% Relative Humidity (non-condensing) Battery 9V (included) Auto Power Off After 15 minutes of inactivity Sensor Type Stabilized electrochemical Gas-specific (CO) Typical Sensor Life 3 years Powered by Turbo Lister The free listing tool. List your items fast and easy and manage your active items. The free listing tool. List your items fast and easy and manage your activ The free listing tool. List your items fast and easy and manage your activ