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Eliminate the Risk of Short-circuits and Electrical Accidents





HIOKI Clamp On Power Meters are multi-channel power measuring devices utilizing clamp sensor input to accurately and safely measure power on single-phase to three-phase lines. The PW3365-20 takes safety and convenience one step further by being the world’s first non-metallic contact power meter that utilizes completely covered voltage clips that can be attached to any part of a cable or busbar. Customers can now monitor power demand and other power parameters to aid in energy audits and validate energy saving measures without risk of short-circuit accidents, power interruptions, or bodily injury due to electrocutions.  CLAMP ON POWER LOGGER PW3365




Power Logger (w/4 PW9020 Non Contact Voltage Sensors)




Power Logger Kit (Custom 100A Kit)




Power Logger Kit (Custom 500A Kit)




Power Demand Analyzer (Custom 1000A Kit)




Power Demand Analyzer (Custom 5000A Kit)


Note: Clamp On Power Logger PW3365 by itself does not support current and power measurements. Current and power measurements require clamp on sensors, sold separately. Use only HIOKI SD cards guaranteed to work for saving measurement data (options, sold separately).



Key Features

• The PW3365’s dedicated voltage sensor delivers the world’s first no-metal-contact measurement.

• Supports single to three-phase, 4-wire circuits

• Measure between 90V to 520V

• Slim, compact design that can be placed anywhere

• Store months of data on SD cards

• The QUICK SET function guides you in making the right connections

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 6 months)


Measurement line & number of circuits


50/60 Hz, Single phase 2 wires (1/2/3 circuits), Single phase 3 wires (1 circuit), Three phases 3 wires (1 circuit), Three phases 4 wires (1 circuit), Current only: 1 to 3 channels


Measurement items


Voltage RMS, current RMS, voltage fundamental wave value, current fundamental wave value, voltage fundamental wave phase angle, current fundamental wave phase angle, frequency (U1), voltage waveform peak (absolute value), current waveform peak (absolute value), active power, reactive power, apparent power, power factor (with lag/lead display) or displacement power factor (with lag/lead display), active energy (consumption, regeneration), reactive energy (lag, lead), energy cost display, active power demand quantity (consumption, regeneration), reactive power demand quantity (lag, lead), active power demand value (consumption, regeneration), reactive power demand value (lag, lead), power factor demand


Voltage ranges


400 V AC (Effective measurement range: 90.0 V to 520.0 V)


Current ranges


00.00 mA to 5.0000 kA AC (depends on current sensor in use),
50.000 mA to 5.0000 A AC (Leak clamp on sensor only)


Power ranges


200.00 W to 6.0000 MW (Depends on voltage/current combination and measured line type)


Basic accuracy


Voltage : ±1.5% rdg. ±0.2% f.s(combined accuracy with PW3365-20 + PW9020)
Current : ±0.3% rdg. ±0.1% f.s. + clamp sensor accuracy
Active power : ±2.0% rdg. ±0.3% f.s. + clamp sensor accuracy (at power factor = 1)


Display update rate


0.5 sec (except when accessing SD card or internal memory, or during LAN/USB communication)


Save destination


SD Memory card, or internal memory at real time


Data save interval


1 sec to 30 sec, 1 minute to 60 minutes, 14 selections


Save items


Measurement value save: Average only / Average, Maximum, Minimum value
Screen copy: BMP form (saved every 5 min. at minimum interval time)
Waveform save: Binary waveform data




SD memory card
HTTP server function, remote settings via communication program, data download
USB 2.0: When connected to a PC, the SD Card and internal memory are recognized as removable storage devices, remote settings via communication program, data download
Pulse output: proportional to active power consumption when measuring integral power consumption, Isolated open-collector signal




Connection check, Quick Set navigation guide, clock


Power supply


AC adapter Z1008: (100 to 240 V AC, 50/60 Hz), 45 VA (including AC adapter)
Battery pack 9459: (DC 7.2 V, 3 VA, charging time 6 hr 10 m), 5 hours of continuous use (with back light off)


Dimensions and mass


180 mm (7.09 in)W × 100 mm (3.94 in)H × 48 mm (1.89 in)D, 540 g (19 oz) without PW9002
180 mm (7.09 in)W × 100 mm (3.94 in)H × 68 mm (2.68 in)D, 820 g (28.9 oz) with PW9002




Safety Voltage Sensor PW9020 ×1 set, AC adapter Z1008 ×1, USB cable ×1, Instruction manual ×1, Measurement guide ×1, Color spiral tubes ×1 set: red, yellow, blue/four each, Spiral tubes for grouping clamp sensor cords ×10

Get in touch with us to inquire about our tailored consulting services.