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Test & Measurement

Klein Tools offers a wide variety of Test and Measurement Tools suitable for almost any application. These Klein Tools test and measurement products come in clamp meters, electrical testers, multimeters, test and measurement accessories, and specialty testers variants.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Clamp Multimeters & Accessories AC/DC Digital Clamp Meter, Auto-Ranging 400 Amp CL390 Klein Tools 1: $102.10 A tariff of 11% may be applied if shipping to the United States. 20In Stock	Mfr. Part # CL390 Mouser Part # 247-CL390	Klein Tools	Clamp Multimeters & Accessories AC/DC Digital Clamp Meter, Auto-Ranging 400 Amp Learn More about Klein Tools 400a clamp meters	Datasheet	20In Stock	$102.10 $99.97 A tariff of 11% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Digital Multimeters USB Digital Meter, USB-A and USB-C ET920 Klein Tools 1: $39.97 A tariff of 11% may be applied if shipping to the United States. 44In Stock	Mfr. Part # ET920 Mouser Part # 247-ET920	Klein Tools	Digital Multimeters USB Digital Meter, USB-A and USB-C Learn More about Klein Tools test and measurement	Datasheet	44In Stock	$39.97 A tariff of 11% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Clamp Multimeters & Accessories Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ), Auto Off CL800 Klein Tools 1: $155.81 A tariff of 30% may be applied if shipping to the United States. 17In Stock	Mfr. Part # CL800 Mouser Part # 247-CL800	Klein Tools	Clamp Multimeters & Accessories Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ), Auto Off Learn More about Klein Tools test and measurement	Datasheet	17In Stock	$155.81 $155.80 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Thermometers Dual Laser Infrared Thermometer IR5 Klein Tools 1: $74.98 A tariff of 20% may be applied if shipping to the United States. 56In Stock	Mfr. Part # IR5 Mouser Part # 247-IR5	Klein Tools	Thermometers Dual Laser Infrared Thermometer Learn More about Klein Tools test and measurement	Datasheet	56In Stock	$74.98 A tariff of 20% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Test Accessories - Other Replacement Test Lead Set, Right Angle 69410 Klein Tools 1: $22.05 A tariff of 30% may be applied if shipping to the United States. 4In Stock	Mfr. Part # 69410 Mouser Part # 247-69410	Klein Tools	Test Accessories - Other Replacement Test Lead Set, Right Angle Learn More about Klein Tools test and measurement	Datasheet	4In Stock	$22.05 $21.06 $20.63 $20.09 $19.97 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Clamp Multimeters & Accessories Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ), 2000 Amp CL900 Klein Tools 1: $213.70 A tariff of 30% may be applied if shipping to the United States. 4In Stock	Mfr. Part # CL900 Mouser Part # 247-CL900	Klein Tools	Clamp Multimeters & Accessories Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ), 2000 Amp Learn More about Klein Tools test and measurement	Datasheet	4In Stock	$213.70 $203.99 $199.95 $194.73 View $190.87 Quote A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Component Testers AC/DC Voltage/Continuity Tester ET250 Klein Tools 1: $54.96 A tariff of 30% may be applied if shipping to the United States. 2In Stock	Mfr. Part # ET250 Mouser Part # 247-ET250	Klein Tools	Component Testers AC/DC Voltage/Continuity Tester Learn More about Klein Tools test and measurement	Datasheet	2In Stock	$54.96 $52.46 $51.42 $50.08 $49.97 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Component Testers Digital Circuit Breaker Finder with GFCI Outlet Tester ET310 Klein Tools 1: $58.79 A tariff of 11% may be applied if shipping to the United States. 6In Stock 14Expected 10/22/2026	Mfr. Part # ET310 Mouser Part # 247-ET310	Klein Tools	Component Testers Digital Circuit Breaker Finder with GFCI Outlet Tester Learn More about Klein Tools industrial automation test measure	Datasheet	6In Stock 14Expected 10/22/2026	$58.79 $56.13 $55.01 $54.44 A tariff of 11% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Digital Multimeters USB Digital Meter and Tester, USB-A (Type A) ET910 Klein Tools 1: $56.63 A tariff of 30% may be applied if shipping to the United States. 2In Stock	Mfr. Part # ET910 Mouser Part # 247-ET910	Klein Tools	Digital Multimeters USB Digital Meter and Tester, USB-A (Type A) Learn More about Klein Tools test and measurement	Datasheet	2In Stock	$56.63 $53.30 $51.64 $50.89 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Component Testers GFCI Outlet Tester RT210 Klein Tools 1: $15.24 A tariff of 11% may be applied if shipping to the United States. 13In Stock	Mfr. Part # RT210 Mouser Part # 247-RT210	Klein Tools	Component Testers GFCI Outlet Tester Learn More about Klein Tools test and measurement	Datasheet	13In Stock	$15.24 $14.56 $14.26 $13.98 A tariff of 11% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Test Accessories - Other K-Type High Temperature Thermocouple 69142 Klein Tools 1: $35.89 2In Stock	Mfr. Part # 69142 Mouser Part # 247-69142	Klein Tools	Test Accessories - Other K-Type High Temperature Thermocouple Learn More about Klein Tools test and measurement	Datasheet	2In Stock	$35.89 $35.88	Min.: 1 Mult.: 1
Test Accessories - Other K-Type to Banana Plug Adapter 69146 Klein Tools 1: $11.81 A tariff of 30% may be applied if shipping to the United States. 14In Stock	Mfr. Part # 69146 Mouser Part # 247-69146	Klein Tools	Test Accessories - Other K-Type to Banana Plug Adapter Learn More about Klein Tools test and measurement	Datasheet	14In Stock	$11.81 $11.27 $11.05 $10.76 View $10.55 $10.34 $10.07 $9.99 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Component Testers AC/DC Voltage Tester ET45 Klein Tools 1: $14.97 7In Stock	Mfr. Part # ET45 Mouser Part # 247-ET45	Klein Tools	Component Testers AC/DC Voltage Tester Learn More about Klein Tools acdc voltage receptacle test kit	Datasheet	7In Stock	$14.97 $14.29 $14.01 $13.64 View $13.37 $13.11 $12.98	Min.: 1 Mult.: 1
Component Testers AFCI /GFCI Outlet Tester RT310 Klein Tools 1: $51.29 A tariff of 30% may be applied if shipping to the United States. 1In Stock	Mfr. Part # RT310 Mouser Part # 247-RT310	Klein Tools	Component Testers AFCI /GFCI Outlet Tester Learn More about Klein Tools industrial automation test measure	Datasheet	1In Stock	$51.29 $48.97 $48.00 $46.74 View $45.82 $44.99 A tariff of 30% may be applied if shipping to the United States.	Min.: 1 Mult.: 1
Thermometers Magnetic Digital Pocket Thermometer ET10 Klein Tools 1: $29.79 A tariff of 8% may be applied if shipping to the United States. Non-Stocked Lead-Time 2 Weeks	Mfr. Part # ET10 Mouser Part # 247-ET10	Klein Tools	Thermometers Magnetic Digital Pocket Thermometer Learn More about Klein Tools test and measurement	Datasheet	Non-Stocked Lead-Time 2 Weeks	$29.79 $28.44 $27.87 $27.14 View $26.60 $26.07 $25.39 A tariff of 8% may be applied if shipping to the United States.	Min.: 1 Mult.: 1

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