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
- 7% best 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|
|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.|
|Battery||Button battery LR-44x2|
|Test lead length/Pin tip||Length: approx. 0.5m/15mm|
Review courtesy of Darren Walker
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