Portable air quality meter, 77532

Measures CO? (0 - 9999 ppm) and temperature (-10 + 60 °C). CO? precision: ± 30 ppm ± 5% of measurement (0 - 5000 ppm) and ± 10% of the measurement for the other range. Temperature precision: ± 0,6 °C. Ideal for indoor air quality measurement (IAQ). Uses NDIR technology (non dispersive infrarred detector) to ensure long-term reliability and stability. Acoustic alarms, maximum, minimum, average and hold functions. 4 AA batteries (included). Includes hard carry case. Warranty 2 years