Z Meter

Tenma 72-6948 Impedance Meter

SKU: IN06342

£197.85 + VAT    £237.42 incl. VAT

Impedance meter

In stock

Batteries AAA



Tenma 72-6948 audio impedance meter is essential for reliable installation of background music and paging systems in residences, offices buildings and public areas. Avoid costly service calls and amplifier damage by verifying actual speaker system impedance prior to operation. Unlike conventional Volt/Ohm meters, which measure DC resistance, this unit utilizes an internal 1kHz oscillator to measure true impedance

  • Impedance matching volume controls, switchers, transformers and passive crossovers
  • Measures up to 20kΩ
  • Can be utilized with 25V/50V/70V/100V speaker line transformers in commercial installs (see manual)
  • Large digital display features 1″ characters for easy viewing
  • Rotary selector provides 200Ω, 2kΩ & 20kΩ scales
  • Rugged, double insulated case is CATIII rated for use up to 200V
  • Requires 6 x AA batteries (not included)
  • Supplied with test leads, carry case and owners manual
  • Dimensions (WxHxD)- 178 x 82 x 77mm

See the ‘User Manuals’ tab on the left of this page – as manufacturers are making instruction sheets and user manuals available for download only and your purchase may not include a printed version.

Additional information

Dimensions7.7 × 17.8 × 8.2 cm




Tenma gained roots in the consumer electronics service industry in the early 1980s, with a simple goal in mind; provide a broad offering of high-quality test and measurement products, and soldering equipment, at an extremely competitive price. Tenma quickly achieved this goal and earned a reputation for exceptional quality at a reasonable price. Today, Tenma products are recognized worldwide. Our professional and commercial sound products, wireless microphones and induction loops are carefully chosen for sale on our website – not everything from every manufacturer is there. Based on feedback, customer reviews and our own observations we list items that are popular, reliable and good value for money. If there are products not shown on our website that you feel we may be able to quote for, please just ask!

User Manuals


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