Testing equipment can be put to good use ensuring that electrical equipment is properly installed and safe to operate. Faulty installations can be lethal; the condition of electrical installations can be established when contractors use test equipment. Gardner Bender is pleased to offer an innovative full feature line of test equipment designed to make electrical work faster and safer. Multimeter tests AC volts, DC volts, bateries, DC amps, resistance and transitor gain. The fuse and diode are protected.