Check the listing for details. Triplett ET550 AFCI/GFCI Receptacle Tester Electrical Tool. Condition: New, Made in China. Listed at 119.95 USD. This Triplett ET550 AFCI/GFCI Receptacle Tester is a reliable and efficient electrical tool that is perfect for any home or garden project. With its advanced measuring technology and compact size of 7.4 x 2.3 x 1.3 inches, this tester can quickly and accurately detect the presence of electrical faults in your circuit. The item requires 3 AAA batteries and comes with a model number ET550. It is manufactured in China and has a weight of 8.5 ounces. The product falls under the categories of Home & Garden, Tools & Workshop Equipment, Measuring & Layout Tools, and Electrical Testers. The tester is designed to provide reliable and accurate readings, making it an excellent choice for both professional electricians and DIY enthusiasts.