This key chain can detect AC voltage by non-contact method from 70VAC to 250VAC. It can also be used to find out broken wire location. The key chain also equipped with wrong connection check function and ground and earthing disconnection check function. It can detect static radiation of TV and monitor and check the operating condition of ionizer.

• Microwave leakage detection: ≥5mw/cm2
• 1.5V x 2 pieces (LR44, AG13, L1154 etc.) batteries
• Worldwide patent pending
• With flashlight/torch
• Highly recommended as gift or as promotional item