Klein Tools RT390 GFCI AFCI Circuit Analyzer with Large LCD and Voltage Drop

The Klein Tools RT390 Circuit Analyzer is an advanced outlet and circuit analyzer that helps electricians find wiring faults quickly. Its large LCD shows test results clearly, and it tests GFCI and AFCI protection, measures voltage drop, and displays trip time for thorough troubleshooting.

Key Features

• Large color LCD shows wiring faults, AFCI, GFCI, voltage drop and trip-time results
• Detects common wiring faults in standard, AFCI and GFCI outlets, including dual open neutral/open ground
• Inspects AFCI and GFCI devices, including trip time and trip current
• Tests load at 12A, 15A and 20A to measure percentage voltage drop
• Auto power-off after 5 minutes of inactivity
• Detachable cord for easy storage
• Designed for North American 120V AC 3-wire outlets
• CAT III 135V safety rating

Specifications

• Type: Circuit Analyzer
• Application: Test wiring faults, inspect AFCI/GFCI devices, display line voltage, measure voltage drop
• AFCI: Yes
• GFCI: Yes
• Voltage: 135V AC
• Batteries: 3 x AAA alkaline
• Standard: CAT III 135V
• Material: ABS plastic, overmold, electronic components
• Drop Protection: 6.6 ft (2 m)
• Overall Length: 1.5 in (3.8 cm)
• Overall Height: 7.1 in (18 cm)
• Overall Width: 2.7 in (6.9 cm)
• Weight: 10.9 oz (309 g)
• UPC: 092644693632

What's Included

• Circuit analyzer
• 3 x AAA batteries
• Pouch
• Instructions

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