Description: Material: This non-contact sensor electric pen uses ABS as the material, which is wear resistant and durable. Non-contact: This LED screen electric tool is designed with non-contact sensor which can use it safe and convenient. With alarm: This voltage tester is designed with warning alarm which can for warn you when you testing voltage. Easy to use: The backlight power voltmeter has flashlight which provide brightness when work in dark night. Fit occasions: This electronic voltage detector can be used in household repairing and professional worker. Specification: Material: ABS shell. Size: Approx. 172.8x38x27.3mm/6.8x1.49x1.07inch. Power: 2 AAA batteries(not included). Screen: LED color light screen. Flashlight: Yes. Neutral/live line detection: Yes. Sensitivity adjustable: Yes. Sound and light alarm: Yes. Breakpoint detection: Yes. Automatic shutdown: Yes. Non-contact induction detection: Yes. Color: Red, yellow, blue. Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Voltage Tester(with 1 Piece User Manual, 1 Piece Package Box).