Klein Tools’ NCVT1P noncontact voltage tester pen detects voltage in cables, cords, circuit breakers, lighting fixtures, switches, nontamper-resistant outlets and wires. When voltage is detected, a high-intensity red LED illuminates and an audible tone sounds. The 50–1,000V AC power operating range provides broad applications.

Southwire’s 40141S AC/DC four-way voltage detector checks live AC voltage from 120–480V and DC voltage from 160–600V. Test leads insert into the backside of the tester to prevent damage when not in use and may be spaced to fit into standard outlets. The grooved hex grip provides comfort and stability while testing.

Megger’s TPT420 voltage tester is designed to provide electricians and electrical engineers with an easy-to-use voltage-indicating instrument. It will continue to warn the operator of dangerous test voltages even when the batteries are exhausted. With LCD and LED displays, it provides AC and DC voltage measurement up to 1,500V DC.

Megger’s TPT320 voltage tester features LCD and LED displays that provide AC and DC voltage measurement from 12V to 690V. The LED torch allows safe work in poorly lit environments. The phase rotation indication feature is simplified, avoiding the crossing of test probes.

Klein Tools’ 1,000V AC dual-range noncontact voltage tester detects voltage with simultaneous visual and audible voltage indicators. The auto power-off feature conserves and extends battery life. The screw-thread battery cap with O-ring ensures protection against dust and water ingress. The green light indicates no voltage. It has a pocket clip.

Fluke’s 1AC II noncontact voltage tester features a loud beeper that will sound, and the tip will glow red when voltage is detected. The wide voltage detection range allows for use in a broad range of applications. It is rated to CAT IV 1,000V for added protection.