Hygrometer

technical data: power supply: 3v dc (2x1.5v aaa) operating temperature range: -10-50° c measuring depth: max 20 mm wood measurement range: soft wood: 0-53% hard wood: 0-35% building materials measurement range: 1.5-33% measurement accuracy: wood ±4 / building materials ±2 temperature sensor in the range: 0-40° c (32-99° f) three operating modes: wood: soft/hard construction materials ambient temperature two measurement methods: probe sensor (non-invasive measurement)features: backlit 1.8 led screen rubberized housing elements available functions: screen backlight locking the measurement result so-called: hold change of temperature measurement units c/f battery charge indicator acoustic humidity level signal**