Main
Product type	clamp meter
Type	digital


Measurement types
Measurements	voltage current resistance capacity temperature frequency


Specs
Current type	AC / DC
Voltage type	AC / DC
DC voltage minimum	400 mV
DC voltage max.	600 В
Measurement accuracy (V⁻)	0.8 %
AC voltage minimum	400 mV
AC voltage max.	600 В
DC max.	1000 А
AC max.	1000 А
Impedance minimum	400 Ω
Impedance max.	40 MΩ
Max. conductor size	30 mm
Display count	3999
Display value	3 3/4

Features
Functions	diode test continuity test mode True RMS autoranging auto power off


In box	battery test probes case (bag)


General
Display backlight
Power source	battery
Battery type	PP3
Dimensions	229x80x49 mm
Weight	300 g
Official Website	ridgid.eu
Added to E-Catalog	February 2023

E-Catalog UK editor, Multimeters

Serhii Melnyk, edited 21.02.2023

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Ridgid 2026 - new arrivals, bestsellers, and the most relevant models Ridgid.

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	Ridgid CM 100 Micro Clamp Meter 37428 The Ridgid CM-100 Micro Clamp Meter is a professional digital clamp meter designed for electrical testing and diagnostics. Th... moreis true RMS and AutoRanging instrument combines the functionality of a clamp meter with multimeter capabilities, making it a versatile tool for electricians and contractors working with both AC and DC circuits. The compact design features a clamp capacity for cables up to 30mm outside diameter, whilst measuring current from 40A up to 1,000A AC/DC. The meter provides 8 additional functions including resistance measurement (400O to 40MO), capacitance testing (4nF to 40mF), frequency measurement up to 4kHz, plus diode and continuity testing capabilities. Ideal for electrical installation work, maintenance tasks and fault-finding in confined spaces, the slim double-moulded construction allows for convenient one-handed operation in tight cable compartments. The 4,000 count backlit LCD display ensures clear readings in all lighting conditions, whilst data hold and peak hold functions capture measurements for detailed analysis. The integrated bar graph display provides visual feedback during testing. The meter includes Type K temperature probe capability, measuring from -40°C to 1,000°C, extending its usefulness for HVAC and industrial applications. With CAT III 600V overload protection and automatic polarity indication, the CM-100 delivers safe, accurate measurements for professional tradespeople. Features and Benefits: • True RMS and AutoRanging for accurate measurements across varying loads • Compact clamp design for one-handed operation in confined spaces • Dual AC/DC current measurement up to 1,000A • Backlit LCD display with data hold and peak hold functions • Temperature measurement capability from -40°C to 1,000°C • CAT III 600V overload protection for safe operation • Complete kit includes carrying case, test leads, temperature probe and battery Specifications: Max. Voltage (V): 1000 Power Source: 9V battery (included) Display: 4,000 Count backlit LCD Clamp size: Max. 30mm O.D. cable Overload protection: CAT III 600V Polarity Indication: Yes, automatic AutoRanging: Yes True RMS: Yes Data and Peak Hold: Yes Bar Graph Display: Yes Current AC/DC: 40A - 1,000A Temperature: -40° - 1,000°C Resistance: 400O - 40MO Capacitance: 4nF - 40mF Frequency: Up to 4kHz Diode Test: 1.5V Continuity Test: 35O Tooled-up.com Delivery: to United Kingdom Report	£140.95 Buy in shop

	Ridgid CM 100 Micro Clamp Meter 37428 The Ridgid CM-100 Micro Clamp Meter is a professional digital clamp meter designed for electrical testing and diagnostics. Th... moreis true RMS and AutoRanging instrument combines the functionality of a clamp meter with multimeter capabilities, making it a versatile tool for electricians and contractors working with both AC and DC circuits. The compact design features a clamp capacity for cables up to 30mm outside diameter, whilst measuring current from 40A up to 1,000A AC/DC. The meter provides 8 additional functions including resistance measurement (400O to 40MO), capacitance testing (4nF to 40mF), frequency measurement up to 4kHz, plus diode and continuity testing capabilities. Ideal for electrical installation work, maintenance tasks and fault-finding in confined spaces, the slim double-moulded construction allows for convenient one-handed operation in tight cable compartments. The 4,000 count backlit LCD display ensures clear readings in all lighting conditions, whilst data hold and peak hold functions capture measurements for detailed analysis. The integrated bar graph display provides visual feedback during testing. The meter includes Type K temperature probe capability, measuring from -40°C to 1,000°C, extending its usefulness for HVAC and industrial applications. With CAT III 600V overload protection and automatic polarity indication, the CM-100 delivers safe, accurate measurements for professional tradespeople. Features and Benefits: • True RMS and AutoRanging for accurate measurements across varying loads • Compact clamp design for one-handed operation in confined spaces • Dual AC/DC current measurement up to 1,000A • Backlit LCD display with data hold and peak hold functions • Temperature measurement capability from -40°C to 1,000°C • CAT III 600V overload protection for safe operation • Complete kit includes carrying case, test leads, temperature probe and battery Specifications: Max. Voltage (V): 1000 Power Source: 9V battery (included) Display: 4,000 Count backlit LCD Clamp size: Max. 30mm O.D. cable Overload protection: CAT III 600V Polarity Indication: Yes, automatic AutoRanging: Yes True RMS: Yes Data and Peak Hold: Yes Bar Graph Display: Yes Current AC/DC: 40A - 1,000A Temperature: -40° - 1,000°C Resistance: 400O - 40MO Capacitance: 4nF - 40mF Frequency: Up to 4kHz Diode Test: 1.5V Continuity Test: 35O Mytoolshed.co.uk Delivery: in United Kingdom Report	£140.95 Buy in shop

	Ridgid 37428 Cm-100 Micro Clamp Meter 37428 RID37428 The Ridgid CM-100 Micro Clamp Meter is a true RMS and AutoRanging digital clamp meter with a large capacity and measuring ran... morege. It can clamp around cables up to 30mm O.D. and measure current up to 1 000A AC/DC. The clamp meter can also be used as a multimeter for 8 other functions and will provide clear and accurate readings on its large backlit LCD. The slim and double-moulded design provides easy one-handed operation and can be conveniently used in confined cable compartments. Supplied with soft carrying case test leads Type K temperature probe and 9V battery. Functions and Range: Voltage AC/DC: 400mV - 600V.Current AC/DC: 40A - 1 000A.Resistance: 400 - 40M.Capacitance: 4nF - 40mF.Frequency: Up to 4kHz.Diode Test: 1.5V.Continuity Test: 35.Temperature: -40° - 1 000°C. Specifications: Power Source: 9V battery (included).Display: 4 000 Count backlit LCD.Clamp size: Max. 30mm O.D. cable.Overload protection: CAT III 600V.Polarity Indication: Yes automatic.Auto Power-Off. Yes after 20 minutes.AutoRanging: Yes.True RMS: Yes.Data and Peak Hold: Yes.Bar Graph Display: Yes.PTDRID37428 PowerToolsDirect.com Delivery: in United Kingdom Report	£144.25 Buy in shop

	RIDGID 37428 CM-100 Micro Clamp Meter RIDGID 37428 CM-100 Micro Clamp Meter The Ridgid CM-100 Micro Clamp Meter is a true RMS andAutoRanging digital clamp meter w... moreith a large capacity... Onbuy.com Delivery: in United Kingdom Report	£146.18 Buy in shop

	Ridgid CM-100 Micro Clamp Meter 37428 37428 The Ridgid CM-100 Micro Clamp Meter is a true RMS and AutoRanging digital clamp meter with a large capacity and measuring ran... morege. It can clamp around cables up to 30mm O.D. and measure current up to 1,000A AC/DC. The clamp meter can also be used as a multimeter for 8 other functions, and will provide clear and accurate readings on its large backlit LCD. The slim and double-moulded design provides easy one-handed operation and can be conveniently used in confined cable compartments. Supplied with soft carrying case, test leads, Type K temperature probe and 9V battery. Functions and Range: Voltage AC/DC: 400mV - 600V.Current AC/DC: 40A - 1,000A.Resistance: 400 - 40M.Capacitance: 4nF - 40mF.Frequency: Up to 4kHz.Diode Test: 1.5V.Continuity Test: 35.Temperature: -40° - 1,000°C. Specifications: Power Source: 9V battery (included).Display: 4,000 Count backlit LCD.Clamp size: Max. 30mm O.D. cable.Overload protection: CAT III 600V.Polarity Indication: Yes, automatic.Auto Power-Off. Yes, after 20 minutes.AutoRanging: Yes.True RMS: Yes.Data and Peak Hold: Yes.Bar Graph Display: Yes. Blueperry.co.uk Delivery: in United Kingdom Report	£149.86 Buy in shop

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