Specifications; General Specifications; Measurement Specifications; Environmental Specifications - Extech Instruments RH250W User Manual

7

Specifications

7.1 General Specifications

Display
Over range indication
Low battery indication
Reading update rate
Meter power
Dimensions
Weight

7.2 Measurement Specifications

Accuracy specifications apply for the following conditions:
Temperature: 73.4℉ ± 9℉ (23℃ ± 5℃); Relative Humidity: < 90 %
Temperature range
Temperature resolution
Temperature accuracy
Relative humidity range
Relative humidity accuracy

7.3 Environmental Specifications

For indoor use only
Altitude
Pollution degree
Operating conditions
Storage conditions
Drop-proof rating
#NAS100074; r. AA/78956/78963; en-US
4 digit (9999) backlit multifunction LCD
OL is displayed when temperature measurements are out of
range
Battery symbol appears when batteries are low
One reading per second
Three (3) 1.5 V (AAA) batteries
5.4 x 2.2 x 1.1 in. (137 x 55 x 28 mm)
3.6 oz. (102 g)
14 to 140℉ (-10 to 60℃)
0.2℉ (0.1℃)
2℉ (± 1.0℃)
0 to 100% RH
± 5% RH
6562 ft. (2000 m) maximum
2
32 to 104℉ (0 to 40℃); < 90% RH
-4 to 140℉ (-20 to 60℃); < 75% RH
3.3 ft. (1 m)
10