Hioki PW4001 is a portable, high-precision 4-channel power analyzer designed for accurate power measurement across a wide range of applications. It delivers Hioki’s highest DC accuracy of ±0.04 %, ensuring dependable results for vehicle power testing, research, and industrial environments. Its robust design and exceptional precision make it ideal for both laboratory use and on-site evaluations.
Exceptional Measurement Accuracy
Engineered for reliability, the PW4001 maintains ±0.04 % basic accuracy throughout its entire 0.1 Hz to 600 kHz frequency range. This ensures consistent performance from DC to high-frequency measurements, allowing engineers to evaluate complex power systems with confidence. Its precise measurement capabilities are essential for verifying the efficiency and stability of electric and hybrid vehicle components.
Advanced Sensor Integration
The PW4001 also features automatic phase shift correction, enhancing the accuracy of measurements when using Hioki current sensors. This ensures precise synchronization between current and voltage readings, even in demanding test setups.
Key Specifications
– Basic accuracy: ±0.04 %
– Frequency bandwidth: DC, 0.1 Hz to 600 kHz
– Operating temperature: -20 °C to 50 °C
– CAN / CAN FD input and output
– Auto phase shift correction for Hioki current sensors
Standard set: Hioki PW4001 power analyzer, startup guide, power cord, USB cable, D-sub connector, DC power supply connector.




