1. Digital current and voltage detectors with LCD screens can display the measured values directly. 2. The function allows it to detect even in dark environments, easy and convenient to operate. 3. Non-contact test pen, sensitivity adjustable, high measurement accuracy. Four. With sound or light or simulation alarm mode, detection is faster and more efficient. Five. Supports automatic shutdown in 3 minutes without induction or operation, saving energy and power. specification: Condition: 100 percent Brand New Item type: Test Pen Material: ABS Color: Yellow and Black, Black and Red, Red and Black (Optional) AC voltage range: AC 12-1000V Frequency: 50 or 60HZ Alarm Mode: Sound or Light or Simulation Display: LCD screen :support Probe Shape: Flat Battery indicator: support Live Line and Neutral Line: Sound or Light or LCD Analog Display Non-contact sensitivity: adjustable Automatic Shutdown: Automatically shut down in 3 minutes without induction or operation. Operating power supply: 2 x 1.5 V AAA (battery not included) Operating temperature: 0-40 Storage temperature: 10-50 Altitude: less than 2000m or 6561.7ft Package Size: Approx. 19.00x4.00x3.00cm or 7.5x1.6x1.2in Package list: 1 x Yellow Test Pen (battery not included) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.