5.Sensitivity adjustable induction testing (only for NF-609B NF-609C).
6.Signal strength indicator (only for NF-609B & NF-609C ).
Operation 1. Risk of electrocution.Before using to check for voltage in an outlet,always test the Voltage 2. Detector on a known live circuit to verify that the Voltage Detector is working properly 3. Touch the probe tip to a cord plugged into the outlet,or insert it into the outlet hole 4. If AC electrical voltage is present,the red LED(2) on the detector flashes and buzzer beeps 5. Auto power off/spotlight/Designed to international safety standsrd EN61010-1/600V CATIII Detail images