Top 10 Best uei in 2026

Last Updated - 6/8/2026

🏆Best Choice

UEi Test Instruments

UEi Test Instruments PDT650 Folding Pocket Digital Thermometer,Yellow

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•The Product Is Easy To Use
•The Product Is Durable
•True-Rms For Accurate Measurement In All Applications
•Country Of Origin : China
•-58 to 572-degreeF (-50 to 300-degreeC)
•Folding temperature probe
•Built-in magnetic mount
•MIN/MAX record
•Auto power off

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$28.90

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UEi Test Instruments

UEi PDT655 Differential Temperature Folding Pocket Thermometer, HVAC Digital Thermometer with Backlit Display and Magnetic Mount, Measures -58 to 572°F

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•DIFFERENTIAL TEMPERATURE: PDT655 can store temperature readings and measure differential temperature by Measuring (T1 - T2)
•VERSATILE: The PDT655 fits in your pocket and can take readings in tight spaces with a folding probe.
•EASY-TO-READ: The PDT655 comes equipped with a large digital display for easy reading. There is also a backlight to illuminate display in dark spaces.
•HANDS-FREE: The PDT655 includes a built in magnet that enables hands free operation for easy measurement of ducts and vents
•FAST READING: The PDT655 provides quick readings with a temperature probe that refreshes every second.

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$28.52

$31.95

-11%

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UEi Test Instruments

UEi DL369 Digital Clamp Meter HVAC Auto-Ranging 4000 Counts Volt Meter AC Amp Meter Measures AC Current AC/DC Voltage & Microamps Capacitance Resistance Diodes NCV Continuity Tester Live Wire Test

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•DUAL DISPLAY: The DL369 comes with a Dual 4000 Count Display to show all numbers clearly and easily while testing. There also is a Min/Max and auto ranging functions, Auto power off to conserve battery life, and test lead holders for easy transportation.
•CAPACITANCE & FREQUENCY: The DL369 measures both capacitance 4000µF & frequency providing industrial capabilities as an affordable price. This Clamp meter also measures Duty Cycle, Diode Testing, Continuity, and Resistance to 40MΩ.
•AC/DC Microamps: The DL369 measures AC current up to 400A and AC/DC Current up to 2000µA providing you a wide testing range and reducing the need for additional tools on the jobsite.
•NCV: The DL369 has audible Non-Contact Voltage to be able to identify live lines and protect you on the jobsite. This volt meter provides increased safety with 600V CAT III & 1000V CATII safety ratings.
•3-YEAR WARRANTY: The DL369 has a 3-year limited warranty. All warranties must be redeemed in the US.

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$89.89

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UEi Test Instruments

UEi ATL55 Multimeter Test Leads with Alligator Clips CATIII 1000V 42" Length

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•⚡ CATIII SAFETY RATING: These Test Leads are rated for CATIII 1000V ensuring safety on any job site and providing peace of mind when testing.
•🔧 SECURE & DURABLE CONNECTION: These test leads are made of a soft flexible plastic which can withstand lots of wear and tear. The lead shave a sold connection to input jacks ensuring no interruptions while reading.
•✅ UNIVERSALLY COMPATIBLE: The ATL55 leads are standard input jack size and will work with all kinds of clamp meters, digital multimeters, and other test instruments.
•🔌 EASY TO USE: These leads are easy to use simply plug in and power on device. Also come with alligator clips that can be attached to the end of the test leads.
•🧰 REPLACEMENT TEST LEADS: These test leads work great as replacement leads are compatible with all standard input jacks. Compatible with UEi’s DM505-525 Series, DL489, DL479, DL379B, DL429B, and several other devices.

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$16.02

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UEi Test Instruments

UEi DL389B Digital True RMS Clamp Meter, HVAC 4000 Counts Auto Ranging Voltmeter, Measures AC & DC Volts AC Amps AC/DC Microamps Temperature Frequency Resistance Capacitance Duty Cycle NCV Diode Test

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•INDUSTRIAL GRADE: The DL389B is a commercial grade clamp meter with enhanced capabilities for every industrial setting. Our clamp meter measures AC Amps, AC/DC Volts, AC/DC Microamps 2000µA, Capacitance 4000µF, Frequency 199.9KHz, Diode Testing, Duty Cycle, Temperature, Continuity, and Resistance 40MΩ.
•TRUE RMS: This industrial clamp meter features True RMS providing accurate measurements on any type of load.
•ENHANCED SAFETY: The DL389B provides increased safety with a CAT IV 300V & CAT III 600V safety rating. This clamp meter includes Non-Contact Voltage to identify live lines. There are input jack locks to protect your meter from blowing a fuse.
•GREAT DESIGN: Our clamp meter includes and easy to read backlit dual display with a magnetic mount for handsfree operation. The unit also has a work light to illuminate dark areas and test lead storage for easy transport. Other features include Auto/Manual Ranging Modes, Min/Max, auto power off to conserve battery, and a Low Battery Indicator.
•COMPLETE KIT: Also included with your clamp meter are test leads, K-Type temperature probe, 2 AAA batteries, and a zippered pouch for easy transportation.

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$168.14

$177.56

-5%

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UEi Test Instruments

UEi Test Instruments ATTPC3 Pipe Clamp K-Type Thermocouple adapter, HVAC Temperature Probe for Clamp Meters, Surface Thermometer for Boiler and AC Line Temperature Readings

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•HIGH TEMPERATURE RANGE: Our K-Type Clamp Probe has a temperature range of -40°F to 250°F. This clamp is great for HVAC applications measuring AC lines and Boilers.
•VERSATILE: Our K-Type Clamp Probe has a 5.5 foot long cable to help reach into wide range of places. The clamp jaw can fit pipes between ¼” and 1 ½”
•DURABLE: The ATTPC3 is durable with its rugged design. The cable is metal reinforced at both ends to provide strain relief.
•EASY-TO-USE: The ATTPC3 is plug and play with any K-Type Jack and is compatible several of our clamp meters. The grip makes it easy to clamp on to pipes, and the wide thermocouple contacts provide consistent readings.
•1-YEAR WARRANTY: The ATTPC3 comes with a 1-Year limited warranty. All warranties must be redeemed in the US.

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$46.37

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UEi Test Instruments

UEi DL379B Digital Clamp Meter Auto Ranging, HVAC Current Voltage Tester w/Magnetic Mount, Measures AC Amps AC/DC Volts Temperature Capacitance Frequency Diodes Duty Cycle Continuity Resistance NCV

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•INDUSTRIAL GRADE: The DL379B is a commercial grade clamp meter with enhanced capabilities for every industrial setting. Our clamp meter measures AC Amps, AC/DC Volts, AC Microamps 2000µA, Capacitance 2000µF, Frequency, Duty Cycle, Diode Testing, Temperature, Continuity, and Resistance 40MΩ.
•ENHANCED SAFETY: The DL379B provides increased safety with a CAT IV 300V & CAT III 600V safety rating. This clamp meter includes Non-Contact Voltage to identify live lines. There are input jack locks to protect your meter from blowing a fuse.
•GREAT DESIGN: Our clamp meter includes and easy to read backlit dual display with a magnetic mount for handsfree operation. The unit also has a work light to illuminate dark areas and test lead storage for easy transport. Other features include Min/Max, auto power off to conserve battery, and a Low Battery Indicator.
•COMPLETE KIT: Also included with your clamp meter are test leads, K-Type temperature probe, 2 AAA batteries, and a zippered pouch for easy transportation.
•WARRANTY: The DL379B has a 3-year limited warranty. All warranties must be redeemed in the US.

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$150.79

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UEi Test Instruments

UEi Test Instruments Equipment INF165C 1 IR Thermometer

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•10:1 Distance to Spot ratio
•Wide Temperature Range -58 ~ 750°F
•Over-molded handle with comfort grip
•Backlit display; low Battery indicator
•Class III laser; Max. output <5 mW

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$57.92

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UEi Test Instruments

UEi DL589 600A TRMS Clamp Meter w/ DC Amps, Inrush, Magnet

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•600A TRMS CLAMP METER W/ DC AMPS, INRUSH, MAGNET
•CAT IV 600V rating
•AC Volts: 750 VAC
•DC Volts: 1000 VDC
•AC current (amps): 600A AC

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$243.68

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UEi Test Instruments

UEI TEST INSTRUMENTS PDT660 Approx. 1/SEC Update Rate, FLODING Probe Reads Open OR Closed, Large Easy-to-Read Backlit Display, NSF Certified, NSF Folding Pocket Thermometer, Temperature Range: -58 to

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•APPROX. 1/SEC UPDATE RATE
•FLODING PROBE READS OPEN OR CLOSED
•LARGE EASY-TO-READ BACKLIT DISPLAY
•NSF CERTIFIED
•NSF FOLDING POCKET THERMOMETER

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$37.60

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