Circuit Tester Alert Type Light CAT Safety Rating CAT I 277V Display Screen Type No Display Display Type No Display Features Carabiner Style Clip to Secure to Work Belt Easy-to-Read LED Output and Condition Tables Nylon Housing for Secure Gripping For Voltage Range 277V AC Frequency Rating 60 Hz Includes Carabiner Load Current 20 A Maximum Tension Measurement Not Applicable Minimum Tension Measurement Not Applicable NEMA Plug Configuration L7-20P Tester Type AC Circuit Analyzer