Features: Find circuit breaker or circuit fuse quickly and accurately. Sensitivity can be adjusted through the ON/OFF switch. The operator can determine the status of circuit connection according to the 3 LEDs. Sensitivity control suitable for various signal strengths Audio and visual indicators through LEDs and buzzers; Specifications: Specifications Range Best Accuracy Model UT25B Operating Voltage 90-120V AC yes Working Frequency 47-63Hz yes GFCI Test About 6mA yes Open Ground yes Open Neutral yes Open Hot yes Indications Hot/NEU Reverse yes Hot /GND Reverse yes GFCI Testing In Progrss yes Hot On NEU With Hot Open yes Correct yes Features Adjustable Sensitivity yes Beeper yes LED Flashlight yes NCV Test Low Battery Indication yes General Characteristics Power 9V Battery (6F22) Product Color Red and Grey Package Included: 1 * Circuit Breaker Finder(Receiver) (battery not included) 1 * Socket Tester(Transmitter) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. 1、Find circuit breaker or circuit fuse quickly and accurately 2、 Sensitivity can be adjusted through the ON/OFF switch 3、 The operator can determine the status of circuit connection according to the 3 LEDs 4、Sensitivity control suitable for various signal strengths 5、Audio and visual indicators through LEDs and buzzers