Dt-830D – When testing the temperature, connect the temperature probe to V 0 mA jack or COM jack. Please refer to the attached instruction manual for the operating instructions. Ac Dc Measuring Voltage Current. – When testing dc voltage, ac voltage, dc current, resistance, diode, buzzer, and battery, connect the red test lead to the v 0 ma jack and the black test lead to the com jack When testing the current more than 200ma, connect the red test lead to the load jack and the black test lead to the com jack Small multi-meter for your day-to-day needs Digital Yellow Multimeter has Square wave output: the frequency is 50Hz, and the voltage is approx 3Vp-p.The output jack is “V ohm mA” and “COM”
