Quickly calculates critical temperature values, calculates dew points and wet bulb temperature

Functions: max/min/hold, °C/°F switchable

Range of measurement: -40 to +70°C/0 to 99% rel. H.

Accuracy: ±0.5°C/±3%(10 to 90%)

Display resolution: 0.1°C/0.1%

2 x 1.5 V batteries