Item Type: Mini Visual Fault Locator_x000D_Material: ABS_x000D_Wavelength Range: 650nm_x000D_Laser Type: LD_x000D_Modulation Frequency: CW/2Hz_x000D_Operating Temperature: -20 - +60_x000D_LED Flashlight: Support_x000D_Power Supply: AAA 1.5V battery x2 (without) 1Energy And Power Saving: Short press the power on key to turn on the power saving function by default, 10 minutes without operation, automatic shutdown. When the power on state, long press the power on button, it cancels the function. 2Back Clip Design: Simple and lightweight, small and delicate size, with a very good back clip design, users can comfortably fit into pockets, clip on clothes and carry around. 3Ergonomics For User: The body design meets ergonomic requirements, making it more comfortable and easy for the person using it to use and work more efficiently. 4LED Light: Our fiber optic tester is also equipped with an LED light, which makes it easy for the operator to check the line construction in a dark environment without being affected by the environment. 5Universal Connector: This fiber optic tester uses a 2.5mm universal connector to meet multiple needs, and you can replace the adapter head and ceramic core by yourself.1 x MiniVisualFaultLocator