Clamp Meters

A clamp meter is an electrical test tool that combines a basic digital multimeter with a current sensor. Clamps measure current such as AC current, AC and DC voltage, resistance, continuity, and, with some models, DC current, capacitance, temperature, frequency and more. Due to the hinged jaw, this tool allows the user to clamp the jaws around a wire, cable or other conductor at any point in an electrical system, then measure the current without disconnecting it. True RMS measurements, this tester typically measures to the nearest 10th of a unit making them perfect for electrical work such as repairing, installation and maintenance.


Originally created as a single-purpose test tool, modern clampmeters offer more measurement functions, greater accuracy and sometimes specialised measurement features. Today’s clamp meters include most of the basic functions of a digital multimeter, such as the ability to measure voltage, continuity and resistance.


Who uses them?


    Industrial maintenance technicians

    Control technicians

    Electricians – in-house and contractors

    Facilities, building maintenance and HVAC technicians

    Service organisations

What are they used on?


    Industrial equipment

    Industrial controls

    Electrical systems

    Commercial/industrial HVAC

Why are Clamp meters so popular?


    Safety: Clamp meters allow electricians to bypass the old-school method of cutting into a wire and inserting a meter’s test leads into the circuit to take an inline current measurement. The jaws of a clamp meter do not need to touch a conductor during a measurement.

    Convenience: During measurement, it is not necessary to shut off the circuit carrying current—a large boost in efficiency.

They are primarily used for:


    Service: Repair existing systems on an as-needed basis.

    Installation: Troubleshooting installation problems, perform final circuit tests, and supervise apprentice electricians while installing electrical equipment.

    Maintenance: Perform scheduled and preventative maintenance and system troubleshooting.

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Description Price Absolute Maximum AC Current Measurement Absolute Maximum DC Current Measurement Absolute Maximum AC Voltage Measurement Absolute Maximum DC Voltage Measurement Absolute Maximum Resistance Measurement Connectivity Model Number AC Current Measurement Resolution DC Current Measurement Resolution Best DC Current Accuracy Clamp Meter Type Best AC Current Accuracy Best AC Voltage Accuracy Best DC Voltage Accuracy
RS庫存編號 922-6220
製造零件編號CM174
BrandFLIR
HK$4,336.20
單位
600A ac 600A dc 1000V ac 1000V dc 6kΩ - CM174 - - ±2 % AC/DC Imaging Clamp Meter ±2 (VFD) %, ±3 (Inrush) % ±1 % ±1 %
RS庫存編號 765-3658
製造零件編號FLUKE 323
BrandFluke
HK$1,061.00
單位
- - 600V ac 600V dc 400Ω - 323 100mA ac - - Current, Voltage ±2% +5 digits ±1% + 5 Digits -
RS庫存編號 765-3667
製造零件編號FLUKE 324
BrandFluke
HK$1,470.47
單位
400A ac - 600V ac 600V dc 400Ω - 324 10mA ac - - Current, Voltage - - -
RS庫存編號 765-3660
製造零件編號FLUKE 325
BrandFluke
HK$1,944.00
單位
400A ac 400A dc 600V ac 600V dc 40kΩ - 325 10mA ac 10mA dc - Current, Voltage - - -
RS庫存編號 914-5424
製造零件編號Fluke 376
BrandFluke
HK$3,430.00
單位
999.9A ac 999.9A dc 1000V ac 1000V dc 60kΩ - 376 0.1A 0.1A 2 % AC/DC Clamp Meter 2.5 % 1.5 % 1 %
RS庫存編號 914-5436
製造零件編號3790599
BrandFluke
HK$2,990.00
單位
600A ac 600A dc 600V ac 600V dc 6kΩ - 374 0.1A 0.1A 2 % AC/DC Clamp Meter 2 % 1.5 % 1 %
RS庫存編號 760-9112
製造零件編號Fluke 302+
BrandFluke
HK$608.00
單位
400A ac - 600V ac 600V dc 4kΩ - 302+ - - - Current, Resistance, Voltage ±1.8 % ±1.5 % ±1.5 %
RS庫存編號 790-1240
製造零件編號FLUKE-305
BrandFluke
HK$996.00
單位
999.9A ac - 600V ac 600V dc 4kΩ - 305 100mA ac - - Continuity Tester 2% ±5 digits 1.5% ±5 Digits 1.5% ±5 Digits
RS庫存編號 287-642
製造零件編號FLUKE 771
BrandFluke
HK$5,380.00
單位
- 100mA dc - - - - 771 - 10µA dc ±1% + 5 Digits Current - - -
RS庫存編號 669-3493
製造零件編號Fluke 773
BrandFluke
HK$10,827.00
單位
- 100mA dc - 30V dc - - 773 - 10µA dc ±1% + 5 Digits Current, Voltage - - 0.2% + 2 Digits
RS庫存編號 247-0142
製造零件編號6111-284
BrandMegger
HK$5,505.28
單位
300A ac - - - - - DCM300E 10µA ac - - Current ±5% +5 digits - -
RS庫存編號 420-0765
製造零件編號2033
BrandKyoritsu
HK$4,559.23
單位
300A ac 300A dc - - - - - 10mA ac 10mA dc ±3 % Current ±4 % - -
RS庫存編號 669-3490
製造零件編號Fluke 772
BrandFluke
HK$7,451.00
單位
- 100mA dc - - - - 772 - 10µA dc ±1% + 5 Digits Current - - -
RS庫存編號 466-6042
製造零件編號2300R
BrandKyoritsu
HK$3,988.40
單位
100A ac 100A dc - - - - - 100mA ac 100mA dc ±2% + 5 Digits Current ±2% +5 digits - -
RS庫存編號 705-1948
製造零件編號Fluke 373
BrandFluke
HK$2,287.00
單位
600A ac - 600V ac 600V dc 6kΩ - 373 100mA ac - - Capacitance, Continuity, Current, Resistance, Voltage ±2% +5 digits ±1% + 5 Digits ±1% + 5 Digits
RS庫存編號 420-0743
製造零件編號2003A
BrandKyoritsu
HK$6,491.92
單位
2kA ac 2kA dc 750V ac 1000V dc 4kΩ - - 100mA ac 100mA dc ±1.5% + 2 Digits Continuity, Current, Resistance, Voltage ±3% +2 digits ±1.5% + 4 Digits ±1% + 2 Digits
RS庫存編號 520-2532
製造零件編號Fluke i400
BrandFluke
HK$1,295.62
單位
400A ac - - - - - I400 - - - Current ±2% +0.15 A - -
RS庫存編號 790-1244
製造零件編號FLUKE-312
BrandFluke
HK$860.70
單位
1kA ac 1kA dc 750V ac 1000V dc 4kΩ - 312 10mA ac 10mA dc - Continuity Tester, Voltage & Current Tester ±1.9 % + 5 Digits ±1.2 % + 5 Digits ±0.75% + 2 Digits
RS庫存編號 346-7406
製造零件編號MX0355-Z
BrandMetrix
HK$2,477.38
單位
400A ac 400A dc 600V ac 600V dc 399.9Ω - MX0355-Z - - ±2.5% + 10 Digits Current, Frequency, Resistance, Voltage ±2% +10 digits ±1.5% + 5 Digits ±1% + 2 Digits
RS庫存編號 760-9121
製造零件編號Fluke 303
BrandFluke
HK$742.00
單位
600A ac - 600V ac 600V dc 4kΩ - 303 - - - Current, Resistance, Voltage ±1.8 % ±1.5 % ±1.5 %