THe CO71 takes CO detection to the next level. Flashing tri-colored LED, audible alarm, backlit display, continous readings.
Displays CO from 0-999 ppm. Auto zero activates upon turn-on. MAXCAPTURE continually updates and displays highest CO readings. Audible alert triggers above 35 ppm indicating a threshold of dangerous conecntration. Three year warranty.
Resolution: 1 ppm. Accuracy: + or - (3& of reading + 1 ppm).
battery: 9v standard alkaline. Ambient temp: 32 degree to 104 degree F (0 to 40 C ).