DESCRIPTION Features Non-contact voltage detection, practical and convenient way to test electrical lines The default AC voltage measurement range is 48-1000V, it can also measure 12-1000V by adjusting the sensitivity; easy to distinguish Live/Neutral wires Automatic selection, 3 levels of sensitivity (High,Medium,low) Audible and visual alarms the Auto Power off feature can extend battery life ●Voltage detection range: High sensitivity :AC 12~1000V Low sensitivity: AC 48~1000V ●Neutral & Live wire detection: According to backlight colour change: yellow-Neutral wire; red-Live wire ●Signal intensity display: Yellow-weak signal indicator; red-strong signal indicator ●Signal intensity indication method: The signal is weak: the buzzer sounds slowly and the yellow light is on; The signal is strong, the buzzer is rapid and the red light is on. ●Alarm method: Sound & Light alarm ●Probe shape :Prolate shape ●Infrared indicator light: YES ●Flashlight: YES ●Size:167mm x 29mm x 24.6mm ●Package:1 pcs Tester Pen(Batteries not included)