The Hydromette Compact B2 is an electronic building moisture indicator for a non- destructive measurement of moisture in building materials. It uses the dielectric constant measuring / high frequency principle. The ball probe can be applied flexibly and is used for the detection of moisture in all kinds of building materials. It is also suitable for checking the dispersion of moisture in walls, ceilings and floors. The Hydromette has an audible alarm, which will resound if the values exceed the limit. Limits for the building materials can be set individually. An ideal pretester for use with all "CM" devices. The device is delivered fully equipped with battery and plastic box. Fetures: + direct readings for 7 types of building materials and 2 types of insulating materials as well as tendential indication for hard and soft wood + acoustic alarm function + automatic calibration + indication of the device's temperature/ambient temperature