The Amprobe AM-110 TRMS is a high quality digital multimeter equipped with major functionality and performance. The AM110TRMS offers DC Voltage, AC Voltage, & Hz Frequency functions. The AC 400.0mV range selection is by RANGE button manually, and is specified from AC 10mV (AC 40mV) and up. DC 400.0mV range is designed with 1000MΩ high input impedance for least current drain in measuring small signals, and can cope better with most commercially available voltage output transducers and adapters. The non-zero display reading is normal when the meter inputs are open circuit, which will not affect actual measurement accuracy. Beep-Jack Input Warning

The meter beeps to warn the user against possible damage to the meter due to improper connections to the µA, mA, or A input jacks when other function (like voltage function) is selected.

Temperature function

Be sure to insert the banana plug type-K temperature bead probe Bkp60 (Optional purchase) with correct polarities. Defaults at degree C (Celsius). Press SELECT button momentarily to select degree F (Fahrenheit). You can also use a plug adapter (Optional purchase) with banana pins to type-K socket to adapt other type-K standard mini plug temperature probes.