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 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 794-3086
製造零件編號LH41A
BrandAmprobe
HK$5,018.54
單位
40A ac 40A dc - - - - LH41A 1mA ac 1mA dc ±1.3% + 5 Digits Current ±1.3% + 5 Digits - -
RS庫存編號 794-3077
製造零件編號ACD-10 PLUS
BrandAmprobe
HK$833.82
單位
600A ac - 600V ac 600V dc 40MΩ - ACD-10 PLUS - - - Crest Factor ±1.5% + 8 Digits ±2% + 5 Digits ±1% + 4 Digits
RS庫存編號 252-214
製造零件編號Fluke 345
BrandFluke
HK$22,820.68
單位
1.4kA ac 2kA dc 825V ac 825V dc - - 345 10mA ac 10mA dc ±1.5% + 5 Digits Current, Frequency, Harmonics, Kilowatt Hour, Power, Power Factor, Voltage ±1.5% +5 digits ±1.5% + 5 Digits ±1.5% + 5 Digits
RS庫存編號 788-4580
製造零件編號RSET5
BrandMartindale
HK$1,412.19
單位
200A ac 200A dc 600V ac 600V dc 50MΩ - ET5 100mA ac 100mA dc ±2% + 5 Digits Capacitance, Continuity, Current, Diode, Frequency, Resistance, Temperature, Voltage ±2% +10 digits ±1.2% + 5 Digits (50 → 60 Hz), ±2% + 5 Digits (60 → 500 Hz) ±0.5% + 2 Digits
RS庫存編號 790-1238
製造零件編號T+PRO-1AC KIT
BrandFluke
HK$1,030.00
單位
- - 600V ac 600V dc 9.99kΩ - T+PRO-1AC KIT - - - Electrical Tester - ±3% + 2 Digits ±2% + 2 Digits
RS庫存編號 905-5891
製造零件編號0590 7701
BrandTesto
HK$1,162.92
單位
400A ac 400A dc 600V ac 600V dc 40MΩ - 770-1 - - - Continuity Tester - - -
RS庫存編號 788-4571
製造零件編號RSET4
BrandMartindale
HK$1,206.88
單位
200A ac 200A dc 600V ac 600V dc 50MΩ - ET4 100mA ac 100mA dc ±2% + 5 Digits Continuity, Current, Diode, Frequency, Resistance, Voltage ±2% +5 digits ±1.2% + 5 Digits (50 → 60 Hz), ±2% + 5 Digits (60 → 500 Hz) ±0.5% + 2 Digits
RS庫存編號 848-1343
製造零件編號CM83
BrandFLIR
HK$3,334.19
單位
600A ac 600A dc 1000V ac 1000V dc 99.99kΩ - CM83 - - ±2 % Voltage & Current Tester ±2 % ±1/0.7 % ±1/0.7 %
RS庫存編號 848-1340
製造零件編號CM78
BrandFLIR
HK$3,804.43
單位
1kA ac 1kA dc 1000V ac 1000V dc 40MΩ - CM78 - - ±2.5 % Voltage & Current Tester ±2.5 % ±1.5 % ±1.5 %
RS庫存編號 881-2772
製造零件編號FLK-A3004FC
BrandFluke
HK$5,320.00
單位
- 20.99 mA dc, 99.9 mA dc - - - - A3004FC - 0.01 mA dc, 0.1 A dc 1 % DC Current - - -
RS庫存編號 705-1907
製造零件編號CP 41
HK$3,910.90
單位
40A ac 40A dc - - - - CP41 1mA ac 1mA dc ±1% + 5 Digits Current ±1% +5 digits - -
RS庫存編號 905-5898
製造零件編號0590 7703
BrandTesto
HK$1,619.04
單位
600A ac 600A dc 600V ac 600V dc 60MΩ - 770-3 - - 0.1 % Continuity Tester 0.1 % 0.1 % 0.1 %
RS庫存編號 914-5433
製造零件編號3790586
BrandFluke
HK$3,221.07
單位
600A ac 600A dc 600V ac 600V dc 6kΩ - 375 0.1A 0.1A 2 % AC/DC Clamp Meter 2 % 1.5 % 1 %
RS庫存編號 507-8301
製造零件編號I400S
BrandFluke
HK$2,990.00
單位
1kA ac - - - - - I400S - - - Current ±2% +0.15 A - -
RS庫存編號 794-3070
製造零件編號ACD-14 PLUS
BrandAmprobe
HK$1,158.72
單位
600A ac - 600V ac 600V dc 40MΩ - ACD-14 PLUS - - - Diode ±1.5% + 8 Digits ±2% + 5 Digits ±1% + 4 Digits
RS庫存編號 420-1061
製造零件編號2017
BrandNEUTRAL
HK$585.80
單位
- - - - - - - - - - - - - -
RS庫存編號 865-4743
製造零件編號MARCM87
BrandMartindale
HK$2,766.77
單位
1.5kA ac 2kA dc 750V ac 1000V dc 66MΩ - MARCM87 100mA ac 100mA dc ±2% + 5 Digits Continuity Tester ±3% + 5 Digits (60 Hz → 400 Hz) ±1.5% + 8 Digits ±0.5% + 2 Digits
RS庫存編號 188-4130
製造零件編號80I-110S
BrandFluke
HK$6,403.29
單位
100A ac 100A dc - - - - 80 - - ±3% + 50 mA Current ±3% +50 mA - -
RS庫存編號 905-5894
製造零件編號0590 7702
BrandTesto
HK$1,648.12
單位
400A ac 400A dc 600V ac 600V dc 40MΩ - 770-2 - - - Continuity Tester - - -