CAT II rated for up to 600V; the meter is protected by double insulation. Measurement Type Maximum Range DC Voltage AC Voltage DC/AC Current Resistance Operating Instructions
First and foremost, the manual served a critical safety function. Unlike modern auto-ranging meters that hide complexity from the user, the 22-805 was a manual-range multimeter. Selecting the wrong setting—for instance, measuring 120V AC on the 200V DC range—could damage the unit or cause injury. Consequently, the manual’s first sections were devoted to explicit warnings and procedural checklists. It taught a generation of hobbyists the cardinal rule of diagnostics: always start with the highest range and work down. This document transformed a potentially dangerous piece of equipment into a safe learning tool for teenagers and garage tinkerers. radio shack 24 range digital multimeter 22-805 manual
You can find the full digitized text of the manual at the Internet Archive . CAT II rated for up to 600V; the
The is a portable, 24-range digital multimeter featuring a 3¾-digit display ( count) and a built-in computer interface for data logging. Key Specifications Measurement Ranges : 24 manual/auto-selectable ranges. DC Voltage : Up to AC Voltage : Up to Current : Up to (both AC and DC). Resistance : Up to Safety Rating : CAT II ( Core Features This document transformed a potentially dangerous piece of