PM7a | Pocket Size Digital Multimeter with Built-In Case

SanwaSKU: PM7a

Sale price$46.75

Customer Reviews


The Sanwa PM7a is a pocket-size digital multimeter with a unique foldable design.

This digital multimeter has a 4000-count display and has an accuracy of 0.7%. The device has a unique design that features an integrated protective casing that allows it to fold just like a flip phone. The device is designed to be portable and to be used for measuring weak current circuits. A similar unit is also available with integrated solar power backup (Sanwa PS8a).

The PM7a can pretty much do all the basic functions such as measuring voltage both AC (500Volts max) & DC (500 Volts max), resistance (40 mega-ohms max), continuity test with buzzer as well as diode test. It cannot however measure current.

The PM7a has a power-saving design with an auto power off feature that turns on after 15 minutes of inactivity. It consumes approximately 5mW of power and requires 2 LR44 (1.5V) coin style battery to operate.

Includes meter, instruction manual and test leads (attached).

  • 4000 Count Display
  • 0.07% Accuracy
  • Range Hold
  • Auto Power Off (15 min.)
  • Low Power Ohm (input voltage 0.4V) at continuity range
  • Power Saving Design


      PM7a Measuring Range Accuracy Resolution Input Impedance
      DCV 400m/4/40/400/500V ±(0.7%+3) 0.1mV 10M~100MΩ
      ACV 4/40/400/500V ±(2.3%+5) 0.001V 10M~11MΩ
      Resistance 400/4k/40k/400k/4M/40MΩ ±(2.0%+5) 0.1Ω  
      Continuity Buzzer sounds at less than 10Ω~120Ω
      Open voltage: approx. 0.4V
      Diode test Open voltage: approx. 1.5V
      Display Numeral display 4000
      Sampling rate 3 times/sec.
      Bandwidth 40~400Hz
      Battery Button battery LR-44x2
      Size/Mass H115×W57×D18mm/approx.85g
      Test lead length/Pin tip Length: approx. 0.5m/15mm


      Review courtesy of Darren Walker


      Click to View/Download

      You may also like

      Recently viewed