PCE 555 Air Humidity Meter (-30~ 100°C, 0~100% r.h)

Measuring ranges

Humidity: 0 ... 100% relative humidity (rh)

Temperature: -30 ... 100°C / -22 ... 212°F

Dew point temperature: -30 ... 100°C / -22 ... 212°F

Wet-bulb temperature: 0 ... 80°C / 32 ... 176°F

General specifications

Accuracy:  ± 2% rh at 25°C / 77°F and 20 ... 80% rh, otherwise ± 2.5% ± 0.5°C / ± 0.9°F (at 25°C / 77°F), otherwise ± 0.8°C / ± 1.5°F

Resolution:  0.01% rh, 0.01°C / 0.018°F

Response time (% rh):  Approx. 10 sec. (90% at ambient temperature of 25°C/77°F)

Sampling rate:  2.5 times per sec.

Display:  4.5-digit dual LCD with backlight

Energy efficiency:  Automatic power off after 15 min. inactivity (To deactivate, turn device off. Press and hold Hold key and On/Off key at same time. When display comes on, release both keys.)

Storage conditions:  -10 … 60°C / 14 … 140°F, ˂ 80% rh, noncondensing

Operating conditions:  0 … 40°C / 32 … 104°F, ˂ 80% rh, noncondensing

Power supply:  1 x standard 9V battery, NEDA1604 or 6F22

Approx. dimensions:  225 x 45 x 34 mm / 8.9 x 1.8 x 1.3 in

Approx. weight:  200 g / < 1 lb

Delivery Scope

1 x PCE-555 air humidity meter 

1 x Carrying case

1 x Battery

1 x User manual