We need about 3 business days to prepare it for you and will send it to you by FedEx, UPS or DHL service. It will take about 6 days for you to get it. *DM200 Concrete water testing instrument adopted the high frequency principle based on the introduction of the most advanced technology from foreign country. In other words, there is a fixed frequency inside the equipment. Once the moisture of the detected objects carried, the frequency through the sensor will be different. The deference between the frequencies will be displayed in figure after the conversion by current-frequency converter. *Features: *Its integrative design convenient to carry outside for testing. *Digital display with back light gives exact and clearly reading although you stay at the somber conditions. *It is small in size, light in weight ,easy to carry out for fieldwork if needed. *Manual off at any time .Auto power off after 5 minutes from last operation. *Specification *Display:4 digital LCD *Measuring range:0~2%/0~50% *Operating conditions: *Temperature:0~60 *Humidity:5%~90% *Resolusion:0.1/0.01 *Accuracy: ± 0.5%n *Power supply:9V battery (6F22) *Dimensions:160mm×60mm×25mm *Weight:203g (not including batteries)