The AVOmeter Model 8 is a multimeter made by British company AVO Ltd. It is sometimes referred to as the Model 8 Mark 1.

The multimeter is a measuring instrument that can measure multiple electrical properties such as voltage, resistance, and current.

Our model is complete with its leather case, and was kindly donated by John Young.

Technical specifications:

• Country: Great Britain (UK)
• Manufacturer / Brand: AVO Ltd.; London
• Year: 1951
• Power type and voltage Dry Batteries / 1 x 9 & 1 x 15 Volt
• Model: Avometer Model 8 - AVO Ltd.; London
• Material: Metal case
• Shape: Very small Portable or Pocket-Set (Handheld) < 8 inch.
• Dimensions: (WHD) 170 x 195 x 115 mm / 6.7 x 7.7 x 4.5 inch
• Bakelite front.
• Metal case.
• Volts: DC 1...1000 V; 0,002...10 A; AC 10..1000 V; 0,01...10 A;
• Resistance: 10 kOhm, 100 kOhm, 1 MOHm;
• Capacitance: 0,01...30 µF;
• Db:  -15 bis +16 dB.
• Net weight: (2.2 lb = 1 kg) 2.4 kg / 5 lb 4.6 oz (5.286 lb)

With thanks to www.radiomuseum.org for the specification.