Voltage Detector, Alert Type Light, Sound, Built-In Flashlight Yes, CAT Safety Rating CAT IV 1000V, Cable Length Not Applicable, Display Type No Display, Includes NCV-1030, Maximum AC Voltage Measured 1,000 V, Maximum DC Voltage Measured Not Applicable, Non-Contact Yes, Test Connection Type Probe Tip, Testing Functions AC Voltage, DC Voltage, Features Identifies Polarity (Line Vs. Neutral) of Receptacles and Cables, Safely Tests Voltage in Non-Contact Way, Tests Voltage Through Wire Insulation