Klein Tools GFCI Outlet Tester $11

Amazon has Klein Tools GFCI Outlet Tester (RT210) for $10.98. Shipping is free with Prime or on $35+ orders.

Lowe's also has Klein Tools GFCI Outlet Tester (RT210) for $10.98. Shipping is free for MyLowe's Rewards Members (free to join) or select free store pickup where stock permits.

Thanks to community members pennysave & tomwil for finding this deal.

About this item:

• GFCI Tester detects the most common wiring problems in standard and GFCI receptacles
• Works on GFCI outlets and confirms operation of the ground fault protective device
• Built to withstand a 6.6-foot (2m) drop
• Operating temp: 32-Degree to 140-Degree Fahrenheit (0-Degree to 40-Degree Celsius)
• Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet