May 13, 2013 – Klein Tools expanded its test & measurement line with “Made in the USA” multimeters and receptacle testers promising higher durability and superior quality (see photos below). The meters are built to endure a 10-ft drop and include a raised rubber boot for increased display protection. They also feature improved accuracy, says Klein, and an easy-to-access fuse and battery compartment. The upgraded receptacle testers can withstand a 6-ft drop and include a new design that reinforces the prongs. The MM5000 and MM6000 True RMS meters have increased DC accuracy of ±0.3% and ±0.2%, respectively. They include a low impedance setting to eliminate ghost voltages as well as a µA setting for checking flame sensors. The RT500 and RT600 receptacle testers are designed to detect the most common wiring problems in standard 120V receptacles. These products test for correct wiring, open ground, reverse polarity, open hot, open neutral, and hot and ground reversed. The RT600 also tests GFCI receptacles for proper operation.