Resistance is measured on . Ensure all power to the device is disconnected.
The Radio Shack 22-805 uses a Metex 14 protocol , a common command interface that modern software supports. It communicates at a very slow 600 baud with a data format of 7 data bits, no parity, and 2 stop bits (7N2). To connect the meter’s DB-9 serial port to your modern PC, you will need a USB-to-Serial (RS-232) adapter. radio shack 24 range digital multimeter 22-805 manual
Check the test leads for cracked insulation or exposed wire. Ensure the plastic meter housing is completely intact. Resistance is measured on