Peacefair Pzem-051 Manual May 2026

The Peacefair PZEM-051 is a DC digital multi-function meter designed to measure and display voltage, current, active power, and energy simultaneously on a large LCD screen. Key Technical Specifications Voltage Range: 6.5–100V DC

  1. Press the button repeatedly until you see the kWh reading on the top right of the LCD.
  2. Press and hold the button for approximately 5 seconds.
  3. The digits will flash and return to "0.0".
  4. Release the button.

the key to toggle the backlight on or off. The state is saved automatically. Reset Accumulated Energy: Long press " appears in the power display area, then release. While the energy value is flashing, short press again to clear it. peacefair pzem-051 manual

Simplified Connection Sequence

  1. Battery (+) → PZEM VCC & Load (+)
  2. Battery (-) → Shunt (Large bolt A)
  3. Shunt (Large bolt B) → Load (-)
  4. Small shunt screws → PZEM I+ & I-
  5. Load (+) → PZEM B+

The voltage area shows the high alarm value; the current area shows the low alarm value. Short press the key to increment the flashing digit by 1. Stop pressing for to automatically switch to the next digit. Save and Exit: Long press the key until the screen displays The Peacefair PZEM-051 is a DC digital multi-function