Voltage Detector Alert Type Digital Display Built-In Flashlight No CAT Safety Rating CAT III 1000V CAT IV 600V Display Type Digital Includes Phase Sequence Motor Rotation Tester Maximum AC Voltage Measured 1 000 V Test Connection Type Probe Tip Testing Functions AC Voltage Features Tests for AC Voltages Cables Totally Insulated Power Source Battery Battery Size AAA Display Screen Type LCD with Backlight