Elcometer 309 Delta T Hygrometer

The Elcometer 309 digital Delta T Hygrometer provides a simple and fast measurement of Delta T temperature and relative humidity. The Elcometer 309 Delta T Hygrometer key features include: -Rugged design: Suitable for use in extreme environments the Elcometer 309 digital hygrometer is dustproof and waterproof with fully sealed sensors. -High / Low Limits: Displayed on screen graphically as either (?) or (X) with flashing Red or Green LED’s to indicate pass or fail. -Delta T Temperature: TΔ is pre-set at >3ºC (>5ºF), the industry norm. -Relative Humidity: User definable upper limit can be set for RH. -Measurement Hold / Release function: With a single button press readings are ‘frozen’ on the screen. These can then be recorded before, simply pressing the button again to ‘unfreeze’ the screen and then take further readings as necessary. -Backlight: Provides clearly lit information – ideal in dark or confined spaces.