Professional and applied moisture measure instrument. Large digital LCD display. Comes with a USB 2.0 AGPtek All-In-One Card Reader. * Weight: Approx 150g . Size: 126mm x 70mm x 29mm. * High resolution and fast response. Range: 5% to 40%. Resolution: +/- 1%. Accuracy: +/- 1%. * Date hole and can hold value. Symbol and unit display can read the value convenience. * Batteries: 9V battery. Low Battery Indication. 4-Pin version only leaves 4 small holes. Operating Temperature: 0?C to 40?C ( 32?F to 104?F ) 0 to 70%RH.