Specification:Model: SML-868TS-6Material: ABSPower Supply: 2 * 9V Batteries(not included)Working Temperature: -10~+60Working Humidity: 20%-75%Weight: Approx. 300g / 10.6oz Features:2. Made of high quality material, durable to use.3. Small body, it is easy to operate and use.4. This machine has high hunting sensitivity and stable performance5. You can quickly find the pair of lines you need in many wire piles by this network cable tester