Carbon Mono Oxide Meter CO Meter, Measurement range 0 to 1000 PPM, Storage Temperature 30 to 60 Deg C, Battery 9V, NEDA 1604A

Key features rugged case and electronics large lcd displays co levels starting at zero to 1000 ppm bright back, Light allows easy screen viewing under dim lighting conditions beeper triggers with increasing frequency as co levels rise max hold function stores and displays the maximum co level automatic sensor zeroing and self, Test sequence upon start, Up co level beeper can be silenced if desired automatic power, Off after 20 minutes extends battery life easy to replace battery replaceable sensor extends tool life c50 soft carrying case, Battery and instruction sheet stabilized electrochemical co specific sensor typical two year sensor life, One year calibration cycle battery life typical 500 prolonged use of alkaline battery updated sensor