Buffer memory: approx. 4k measurements
Sample rate: 1 min to 18 hrs
Transmission rate: 2 min and greater
Power options: AC power adapter, battery backup

Measurement Range
Temp: -20 to 70°C (-4 to 158°F) when line powered, -20 to 50°C (-4 to 122°F) when battery powered.
RH: 5 to 95% RH (non-condensing)

Accuracy
Temp: ±0.54°C typical over 0 to 50°C (±0.97° F over 32 to 122°F) when line powered, ±0.21°C over 0 to 50°C (±0.38°F over 32 to 122°F) when battery powered.
RH: ± 2.5 % from 10% to 90% typical to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical

Operating Range
Temp: -20 to 50°C (-4 to 122°F) when battery powered, -20 to 70°C (-4 to 158°F) when line powered.
RH: 5%-95% non-condensing

Resolution
Temp: 0.02° C @ 25° C (0.04° F @ 77° F)
RH: 0.05%

Response Time
Temp: 5 min. in air moving 1 m/sec
RH: 10 min. in air moving 1 m/sec

Range: Approx.100m (300ft.) depending on obstructions or interference
Weight: 138g (4.87 oz) with batteries
Dimensions: 96.5 x 108 x 28mm (3.8 x 4.25 x 1.1 in)
Radio power: 1.6 mW (2 dBm)
Wireless data standard: IEEE802.15.4 2.4 GHz band

CE - The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)