Klein Tools RT250 GFCI Outlet Tester for $17.38

Amazon has the Klein Tools RT250 GFCI Outlet Tester with LCD Display on sale for $17.38. Shipping is free with Prime or on orders over $35.

This model typically retails for around $45.07, and the current price in the last 30 days has matched this low at $17.38. The average price over that period is also approximately $17.38, indicating this is a historically consistent low, if not the lowest. The deal represents a significant discount compared to the full list price, and the product's features—including a large backlit LCD, fault detection, and CSA certification—make it a valuable tool for electrical work.

Given the consistent historical low, the price drop is notable but not unprecedented. This is an excellent price for this well-known tester and is worth alerting users who may be interested in a high-quality testing device.