This Klein Tools NCVT-5A Voltage Tester is a Versatile Dual-Range Non-Contact Voltage Tester with Integrated Laser Pointer. The NCVT-5A volt tester offers two modes for detecting voltage: Mode 1 detects voltage from 70 to 1000V AC, while Mode 2 detects voltage from 12 to 1000V AC. With high-pitched audible alerts that increase in frequency as higher voltage is sensed or when proximity to the voltage source gets closer, you can rely on accurate and timely notifications. The laser pointer adds an extra level of convenience and can be used independently or simultaneously with the NCVT. Enjoy the peace of mind of the CAT IV 1000V safety rating.