Features Various Test: This voltage tester can test a variety of functions to meet your different work needs, useful and practical, provide great convenience Multi Functions: Support automatic identification; DC voltage detection; AC voltage detection; non contact voltage detection; single test pen live wire detection; power failure judgment Intelligent Identification And Detection: Smart voltage sensor support intelligent identification of gear range, automatic detection when power on Integrated And Space Saving: The package is equipped with 2 test pen, convenient for you to test. Integrated multimeter design not only greatly expands testing applications, but also let you not worry consume too much space Scratch Resistant ABS: Adopt good quality ABS material, possess impact resistance, scratch resistance, environmentally friendly Specification: Item Type: Voltage Tester Model: HT122A Material: ABS Battery: 2 x 1.5V AAA(not include) Uses: DC voltage detection; AC voltage detection; non contact voltage detection; single test pen live wire detection Basic Parameters:  DC Voltage: 4V, 40V, 400V, 600V AC Voltage: 4V, 40V, 400V, 600V Resistance: 4000Ω, 40KΩ, 400KΩ, 4MΩ, 40MΩ Capacitance: 40nF, 400nF, 4uF, 40uF, 400uF, 4mF Frequency: 40Hz, 400Hz, 4KHz, 40KHz, 400KHz, 4MHz Package List: 1 x Voltage Tester 2 x Test Pen 1 x User Manual Package List 1 x Voltage Tester 2 x Test Pen 1 x User Manual