Compact Pen Styles Design : an integrated pen shaped body for easy handed operate and pocket storage, making it ideal for electricians and technicians to carry for on the go electrical testing. Auto Ranging Convenience : Automatically switches measurement ranges without manual , perfect for beginners and Professional alike to achieve quick and accurate readings. Multi Parameter Testing : Measures / Electric , resistance, continuity with buzzer, and diode testing, providing a comprehensive for basic circuit diagnostics. Data Hold Function : Includes a HOLD button to freeze readings on the LCD screen, ensuring clear visibility and easy in complex or fast paced work environments. Double illuminate : Equipped with a backlit LCD display and built in LED flashlight for enhanced visibility in dimly lit areas or during nighttime repairs.