








Product Introduction
The LDFA-A three-phase intelligent phase voltmeter is designed with a high-speed Cortex M3 processor and a 24-bit high-speed ADC for measuring and calculating electrical parameters. It features a fully graphical interface, true-color display resolution of 320×240, a touch screen for user-friendly operation, and is easy to carry. The LDFA-A three-phase intelligent phase voltmeter is used for measuring three-phase electrical parameters and can accurately measure high-precision values of voltage, current, phase angle, frequency, power, power factor, and other electrical parameters.
Product Synonyms: Three-Phase Volt-Ampere Meter, Intelligent Digital Three-Phase Phase Volt-Ampere Meter, Multi-functional Digital Three-Phase Phase Volt-Ampere Meter, Digital Phase Volt-Ampere Meter
Product Features
Simultaneously measure three-phase voltage or four current paths (including neutral current)
2. Simultaneously measure the phase angle of three-phase AC voltage, current phase angle, and power angle
3. Measure grid frequency and phase sequence
4. Automatic identification of transformer windings, capacitive and inductive loads
5. Hexagonal diagram showing color phase analysis
6. Handheld three-phase phase-voltage ammeter for measuring active power, reactive power, apparent power, three-phase power, and power factor
7. Data View and Save Function
8. Data Static Storage Feature
9. 3.5-inch TFT color screen with touch function
10. Three-phase volt-ampere meter powered by a lithium battery, capable of continuous standby for over 20 hours with a single full charge.



























