Open the rear case as described in the battery replacement section.
Turn the switch to the section and select an estimated range. Touch the probes across the resistor or component.
The 22-805 is a handheld, battery-powered digital multimeter (DMM) designed for measuring DC/AC voltage, DC current, and resistance. It is often lauded for its robust build, ease of use, and essential range coverage for automotive or home electronic projects. radio shack 24 range digital multimeter 22-805 manual
Proper jack alignment prevents short circuits and blown internal fuses.
Before plugging in your test leads, familiarize yourself with the front panel of the 22-805: Open the rear case as described in the
If you encounter error messages like "OL" (Overload) on all ranges, this may indicate internal damage; consult the service notes section of the manual.
Check the test leads for cracked insulation or exposed wire. Ensure the plastic meter housing is completely intact. The 22-805 is a handheld, battery-powered digital multimeter
-digit LCD display (4,000 counts) and a built-in . This portable unit is designed for field, shop, and home applications and is capable of measuring AC/DC voltage, current up to 20A, and resistance up to Key Specifications & Features
Radio Shack’s original DOS/Windows 3.1/95/98 software is obsolete and difficult to find, but you can use the following modern, open-source programs:
The is a classic piece of test equipment that remains perfectly serviceable nearly three decades after its release. The key to using it safely and accurately is having the original manual—or a reliable substitute like this guide.