Features: The electrical tester is safely double insulated. High Voltage A-lert to warn you of voltage above 90V, the screen turn red and the safety symbol on the screen shines. Detects standard and low voltage (12-1000V AC / 48-1000V AC) for more sensitive and flexible measurements. With NCV inductive probe for AC voltage; Just place the tip near a terminal strip, outlet, or supply cord. The live wire detector can automatically detect the live or neutral wire. for Ideal for breakpoint Test. Handy circuit tester for electricians, homeowners. It will send out multiple alarms through sound and light. When the voltage is detected, the tip will send out red light and beep. Specifications: Material: Plastic Length: 167mm/ 6.57 in 12V-1000V/48V-1000V Package Includes: 1x Non Contact Voltage Detector note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.