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Power loggers for monitoring real-world power consumption

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HIOKI power loggers - compact, safe, and easy to use

HIOKI Clamp-on Power Loggers are the ideal tools for facility management, energy-saving projects, and electrical system troubleshooting. The Power Logger PW3365 offers contactless voltage measurement for safe logging without direct connection to live circuits. The PW3360-21 comes in the same compact design but features harmonic analysis up to the 40th order. Both models help optimize maintenance planning by monitoring consumption patterns, identifying harmonic components, and highlighting energy efficiency opportunities - with reliable HIOKI current sensor options for precise power logging. 

PW3360-20 - CLAMP ON POWER LOGGER PW3360-20 - CLAMP ON POWER LOGGER
PW3360-20
PW3360-20 - CLAMP ON POWER LOGGER
The HIOKI PW3360-20 is a compact 3-phase, 4-wire energy logger that monitors power demand and parameters, ideal for energy audits and validating savings. Banner Specs: Supports single to three-phase, 4-wire circuits or simultaneously measures up to three single-phase, 2-wire circuits A basic accuracy of ±0.3% rdg. ±0.1% f.s (voltage, current, active power) Measures voltage from 90V to 780V Current from 500mA to 5.000kA (with the right sensor) A Power range from 300.00 W to 9.0000 MW Stores months of data on SD cards QUICK SET function ensures correct connections Available interfaces: SD/SDHC memory card, LAN, USB 2.0 HTTP server functionMore than specs – find more details here:🔗 Measure Power with Precision – Across All Applications

€1,248.00*
PW3360-21 - CLAMP ON POWER LOGGER PW3360-21 - CLAMP ON POWER LOGGER
PW3360-21
PW3360-21 - CLAMP ON POWER LOGGER
The HIOKI PW3360-21 is a compact 3-phase, 4-wire energy logger that monitors power demand and parameters, ideal for energy audits and validating savings. Technical Details: Supports single to three-phase, 4-wire circuits or simultaneously measures up to three single-phase, 2-wire circuits A basic accuracy of ±0.3% rdg. ±0.1% f.s (voltage, current, active power) Measures voltage from 90V to 780V • Current from 500mA to 5.000kA (with the right sensor) A Power range from 300.00 W to 9.0000 MW Stores months of data on SD cards QUICK SET function ensures correct connections harmonic measurements up to the 40th order Available interfaces: SD/SDHC memory card, LAN, USB 2.0 HTTP server functionMore than specs – find more details here:🔗 Measure Power with Precision – Across All Applications

€1,878.00*
PW3365 - Non-contact power logger with voltage and current sensors PW3365 - Non-contact power logger with voltage and current sensors
PW3365-20
PW3365 - Non-contact power logger with voltage and current sensors
Non-contact 3-phase 4-wire Clamp-on Power Logger, 90 V to 520 V at 50/60 Hz, 50 mA to 5 kA using external current sensors, harmonic measurement up to the 13th order, SD memory card slot (max. 8 GB), LAN and USB interface

€3,058.00*

Power loggers: accurately measure real energy consumption 


A clear understanding of actual energy use is key to efficiency, reliability, and predictive maintenance. HIOKI power loggers synchronize with 50/60 Hz grids, analyze harmonics up to the 40th order, and work with non-intrusive current sensors for flexible, precise measurements. Choose the right tool for your energy monitoring needs and explore our compatible HIOKI current sensors here.
Model PW3360-20
Clamp-on Power Logger 		PW3360-21
Clamp-on Power Logger 		PW3365
Clamp-on Power Logger
Supported wiring PW3360-20 1P2W (×3), 1P3W, 3P3W, 3P4W (50/60 Hz only) PW3360-21 1P2W (×3), 1P3W, 3P3W, 3P4W (50/60 Hz only) PW3365 1P2W (×3), 1P3W, 3P3W, 3P4W (50/60 Hz only)
Harmonics measurement PW3360-20 None PW3360-21 Up to 40th order PW3365 Up to 13th order
Voltage measurement method PW3360-20 Metal contact PW3360-21 Metal contact PW3365 Contactless
Power accuracy* PW3360-20 0.4 %* PW3360-21 0.4 %* PW3365 2.3 %*
* Instrument accuracy at 50/60 Hz