Spesifikasi :
a. Range : 0 to 999 ppm
b. Accuracy : ± 20% at 0 to 99 ppm, ± 15% at 100 to 500 ppm
c. Resolution : 1 ppm
d. Power : 3 AAA Battery
e. Response time : up to 60 sec.
f. Humidity : 5 to 99% RH
g. Storage Temp : -20 to 60 deg C
h. Operating temp : 0 to 90 deg C
i. Size : 175 x 47 x 28mm.