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HIOKI Power Loggers - Compact, Safe, and Easy to Use

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Power loggers for monitoring real-world power consumption

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 - Compact Three-Phase Power Logger PW3360-20 - Compact Three-Phase Power Logger
PW3360-20
PW3360-20 - Compact Three-Phase Power Logger
Portable 3-phase 4-wire Clamp-on Power Logger, voltage range 600 V, current measurement with external sensors, ranges from 50 mA up to 5 kA, frequency measurement 40 to 70 Hz, with SD card slot, LAN and USB

€1,248.00*
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20 %
PW3360-21 - Compact Three-Phase Power Logger with Harmonic Analysis PW3360-21 - Compact Three-Phase Power Logger with Harmonic Analysis
PW3360-21
PW3360-21 - Compact Three-Phase Power Logger with Harmonic Analysis
Portable 3-phase 4-wire Clamp-on Power Logger, voltage range 600 V, current measurement with external sensors, ranges from 50 mA up to 5 kA, frequency measurement 40 to 70 Hz, harmonic measurement up to the 40th order, SD card slot, LAN and USB

€1,502.40* €1,878.00*
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PW3365 - Compact Three-Phase Power Logger with non-contact voltage sensors PW3365 - Compact Three-Phase Power Logger with non-contact voltage sensors
PW3365-20
PW3365 - Compact Three-Phase Power Logger with non-contact voltage 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*
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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