Since 1910， General Tools has grown to become the recognized industry leader for specialty hand tools and instruments. The EP8703 is ideal for measuring any environment's ambient temperature， relative humidity (RH) and dew point. These measurements are typically made by three groups of users: Water damage restoration contractors; HVAC/R system installers and technicians; and Professionals charged with monitoring and maintaining the environment of facilities such as office buildings， greenhouses， food and equipment storage facilities， wineries， freezers， shipping containers， computer rooms， labs， libraries， museums and saunas.

Temperature measurement range/accuracy/resolution: 14° to 122°F/1.8°F/0.1°

RH measurement range/accuracy/resolution: 0 to 99.9%/±3% from 5% to 95%/0.1%

Battery life: 60 hours (typical)

Jumbo (1.7 in. diagonal) backlit display with 2-line readout

Field calibratable using optional 33% and 75% salts

Degree F/C switch

20-minute auto power off (can be disabled for calibration)

Includes sensor protection cap， 9-Volt battery， user's manual