The Testo 745 Non-contact Voltage Tester is the perfect tool for fast initial checks of suspected electrical faults. Designed with advanced features to ensure accuracy and safety, it filters high-frequency interference signals and offers a two-stage sensitivity setting. This tester quickly detects AC voltage in systems up to 1000 VAC, making it a reliable choice for HVAC professionals. Key Features Fast Voltage Detection: Quickly checks for the presence of voltage in AC-powered systems. High Sensitivity: Two-stage sensitivity setting to cater to different testing needs. Safe Operation: Detects voltage up to 1000 VAC safely. Clear Indications: Flashing RED LEDs an