




HIOKI 3280-20 | Clamp Meter
The AC Clamp Meter 3280-20F (with true RMS measurement) alongside the optional AC Flexible Current Sensor CT6280.
Maintenance and management of electrical equipment in buildings and at manufacturing plants necessitates current and voltage measurement, and Hioki has long supplied clamp-on meters for use in the field by electrical professionals.
The 3280-20F enhance the previous and 3280-20 with a broader range of operating temperatures along with the addition of the CT6280 as an option, making measurement more convenient for customers.

Free UAE shipping available
- Specifications
- Features
Accuracy | 2.3% of reading |
Dimensions (mm) | Approx. 57W x 175H x 16D mm, approx. 100 g (Approx. 2.24"W x 6.89"H x 0.63"D, approx. 3.5 oz.) |
Max Continuous Current (A) | 1000 A |
Operating Temperature Range | 0 to 40°C (32 to 104°F), 80%RH max (no condensation) |
Power Supply | Lithium battery: CR2032 x 1 (Rated supply voltage 3 V DC) |
- 280-20 True RMS Clamp on HiTester
- Measure the fundamental waveform component using the average rectified method
- Wide range of max. 1000 A
- Drop proof design withstands drop from a height of 1 meter
- One meter drop-proof "tested-tough"
- Temperature measurement
- Ohmmeter circuit tested to 250 V AC over voltage-OK
- Clamp-on measurement for busbars and thick conductor
- AC 1000 A clamp aperture: 33 mm dia.
- 100g light and 16mm slim
- Independent-opening double-lever design
- Slim body allows easy clamping even for narrow conductors
- No metal (iron core) exposure, ensuring enhanced safety
Related Products

REED R5055 1000A True RMS Digital Clamp Meter

REED R5055 1000A True RMS Digital Clamp Meter

HIOKI 3288 | Clamp Meter

HIOKI 3288 | Clamp Meter

REED R5100 Non-Contact AC Voltage Detector with Flashlight

REED R5100 Non-Contact AC Voltage Detector with Flashlight

REED R5030 500A True RMS AC/DC Clamp Meter with NCV

REED R5030 500A True RMS AC/DC Clamp Meter with NCV

REED R5060 2000A True RMS AC/DC Clamp Meter

REED R5060 2000A True RMS AC/DC Clamp Meter

REED R5700 Clamp-On Ground Resistance Tester

REED R5700 Clamp-On Ground Resistance Tester

REED R5020 400A AC Clamp Meter with NCV

REED R5020 400A AC Clamp Meter with NCV