Description

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.

 

Features

  • 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

 

Specifications

 

PM7aMeasuring RangeAccuracyResolutionInput Impedance
DCV400m/4/40/400/500V±(0.7%+3)0.1mV10M?100MΩ
ACV4/40/400/500V±(2.3%+5)0.001V10M?11MΩ
Resistance400/4k/40k/400k/4M/40MΩ±(2.0%+5)0.1Ω 
ContinuityBuzzer sounds at less than 10Ω?120Ω
Open voltage: approx. 0.4V
Diode testOpen voltage: approx. 1.5V
DisplayNumeral display 4000
Sampling rate3 times/sec.
Bandwidth40?400Hz
BatteryButton battery LR-44×2
Size/MassH115×W57×D18mm/approx.85g
Test lead length/Pin tipLength: approx. 0.5m/15mm
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