Fluke T+ Electrical Tester has all of the advantages of traditional solenoid testers, with none of the typical drawbacks. Use all 3 voltage detection methods - light, sound, and vibration - to work more efficiently in noisy environments, dimly lit areas, or tight spaces. Built-in flashlight, GFCI trip capability and a rugged design makes the T+ an excellent choice for residential electricians and HVAC technicians who need a durable, reliable tool for testing voltage and continuity.