CARTRIDGE; DETECTOR TYPE: SENSOR; CARBON MONOXIDE (CO) CARTRIDGE. TYPE ELECTROCHEMICAL UNIT OF MEASUREMENT ΜG/M³, PPB(A) MG/M³, PPM(B) MEASUREMENT RANGE (1) 0 - 12,000 PPB(A) 0 - 500 PPM(B) RESOLUTION (2) 1 PPB(A) 0.01 PPM(B) TEMP. RANGE OPERATING (3) -30 TO 50 ºC OPERATING RH RANGE (4) 0 TO 99%RH RECOMMENDED RH RANGE (4) 15 TO 90%RH SERVICE LIFE (5) > 24 MONTHS WARRANTY RANGE (6) 1,000 PPM