Radio Shack 24 Range Digital Multimeter 22-805 Manual Site

Information reviewed by: Dr Tay Chih Kien, B.D.S (Singapore) | Last updated: Mar 07, 2026 Last updated: Mar 07, 2026

Radio Shack 24 Range Digital Multimeter 22-805 Manual Site

The RadioShack 22-805 is a vintage 24-range digital multimeter (DMM) characterized by its 3 3/4-digit display and unique computer interface capability. First released in the late 1990s, it is an auto-ranging handheld meter with a 4,000-count resolution. Core Technical Specifications

Range Selection: Understanding how to select the appropriate range for measurements is crucial for accuracy. The manual explains the process and provides tips on how to avoid overloading the multimeter. radio shack 24 range digital multimeter 22-805 manual

  • DC Voltage (DCV): 200mV, 2V, 20V, 200V, 1000V
  • AC Voltage (ACV): 200V, 400V
  • DC Current (DCA): 200μA, 2mA, 20mA, 200mA
  • AC Current (ACA): 200μA, 2mA, 20mA, 200mA
  • Resistance (Ω): 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ
  • Continuity: Audible tone for resistance < 50Ω

Vetusware : This site hosts the original software (v1.55) used for the computer interface. Key Features & Capabilities Measurement Ranges: Voltage: Up to 1000V1000 cap V 750V750 cap V Current: Up to 20A20 cap A (AC and DC). Resistance: Up to Advanced Functions: Data Hold: Freezes the display reading for easier viewing. The RadioShack 22-805 is a vintage 24-range digital