facebook Smart Tweezers®, LCR-Reader, LCR- and ESR-meters and accessories
LCR-Reader-MPA Product of the Year prize winner from Plant Engineering

LCR-Reader-MPA is the Bronze Prize Winner for Product of the Year 2020
according to the Plant Engineering Magazine
Click here to read more.

LCR-Reader-MPA Plant Engineering Product of the Year Winner

LCR-Reader-MPA: All-in-One Digital Multimeter with LCR/LED/Diode Tests, Oscilloscope and More

LCR-Reader at DigiKey

Buy LCR-Reader at DigiKey LCR-Reader at DigiKey

New Data Logger Software

Component Testing Using BOM and Visual PCB Layout

New Data Logger Software

Budget Multilingual LCR-Reader R3


LCR-Reader-R2 LCR/ESR meter

Finally Available:LCR-Reader-R2

High frequency multimeter with 250 kHz and Analog Signature Analysis

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LCR-Reader-MPA handheld LCR/ESR meter


All-in-one digital multimeter with 0.1% basic accuracy, 100 kHz test frequency and an unrivaled functionality.

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LCR-Reader-MPA-BT Bluetooth Data Acquisition Tool

LCR-Reader-MPA Bluetooth

LCR-Reader-MPA with remote recording of all measurement data; one-click pass/fail assessment.

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LCR-Reader-MPA Pro Task Kit

LCR-Reader-MPA Professional

LCR-Reader-MPA Pro task kit includes extra accessories

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LCR-Reader LCR-meter

Lower-cost model with 0.5% basic accuracy and less features.

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LCR-Reader Pro Task Kit

LCR-Reader Pro Task Kit

LCR-Reader Pro Task kit with various accessories and NIST traceable calibration certificate

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LCR-Reader Colibri

LCR-Reader Colibri®

Same features and functions as LCR-Reader with the added ability to manually select test frequency

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Smart Tweezers ST-5S

Smart Tweezers®

LCR/ESR meter with 0.2% basic accuracy and variable settings; NIST traceable calibration certificate

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Smart Tweezers with Bluetooth

Smart Tweezers® ST-5S Bluetooth

ST5S-BT2 sends and recieve measurement data over Bluetooth connection for PC, Android and iOS

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Kelvin Probe Connector Kit Low Energy Probe Station

Kelvin Probe Connector Kit

Probe Station for LCR-Reader, MPA and Smart Tweezers® models.

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LCR-Reader-MP Multipurpose Tester


Discontinued; still available on Taobao only

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LCR-Reader Offset Calibration Board

Offset Calibration Board

Provides accurate measuements of parasitics for removal

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LED Test Tweezers from Siborg Systems

Smart LED Tester

LED tester with 3 current outputs; can test components with included cable

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LCR-Reader SMD Test Tweezers

SMD Test Tweezers

Tweezer probes for multimeters with 4 mm jack plugs

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Bent Tweezer Probes

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Bent tips for LCR-Reader, LCR-Reader-MPA and Smart Tweezers® models

Bent Tweezer Probes

Trade Shows: Past and Upcoming

DMEMS 2024

Nanotexnology Expo, June 29 to July 6, 2024

Thessaloniki, Greece, Booth C4

DMEMS 2024

DMEMS EXPO, April 24 to 2, 2024

Del Mar Fairgrounds, CA, Booth #506


IPC APEX EXPO, April 9 to 11, 2024

Anaheim Convention Center, CA, Booth #4206

Nepcon Tokyo, 2024

Nepcon Tokyo, 24 to 26 January, 2024

Tokyo Big Sight, Booth E17-38

Chip in Rio 2023

Chip in Rio 2023, September 28

Rio Art Museum, Rio de Janeiro, Brazil, Booth #2

ETE Vietnam 2023

ETE Vietnam, July 19 to July 21, 2023

Saigon Exhibition and Convention Center Booth #423

Chip in Rio 2023

Electronica China 2023

National Exhibition and Convention Cente, Shanghai, Booth #C750

IPC APEX Expo 2023

Eltefa Expo 2023

Stuttgart Convention Center, March 28 to 30, Booth 10G10

Amper 2023

Amper 2023,March 21 to 23

Brno Exhibition Center, Czech Republic, Booth P1.46

IPC APEX Expo 2023

IPC APEX Expo 2023

San Diego Convention Center, January 28 to 30, Booth 3247


SMTA Silicon Valley Chapter

Silicon Valley Expo & Tech Forum, Sunnyvale, December 8, 2022


SMTA International 2022

Electronics Manufacturing Conference and Exposition, Minneapolis, Booth #1144


IEEE AutoTest Conference 2022

August 29 to September 1, 2022, National Harbour, Maryland. Booth 132

Productronica India

Productronica India 2022

September 21 - 23, India Expo Mart, Greater Noida. Booth PD54.

Del Mar Electronics & Manufacturing Show

DMEMS 2022

May 4th-5th 2022, Del Mar Fairgrounds, San Diego, California

EDS 2022

EDS Summit 2022

Las Vegas, May 10-13, 2022

I2TMC 2022

I2MTC 2022

IEEE International Instrumentation & Measurement Technology Conference, Ottawa, Ontario, Canada, May 16-19, 2022

EPTECH On Demand

EPTECH On Demand

Virtually presentation at EPTECH On Demand, Canada's National Electronics Industry Trade Show. September 15, 2021 at 3:20 PM EST


IEDM 2019

San Francisco, California, December 7-11, 2019

Nepcon Vietnam 2019

Nepcon Vietnam 2019

Hanoi, September 11-13 2019.

Nepcon Korea 2019

Nepcon Korea 2019

Seoul, May 15 - 17, 2019

Nepcon South China 2019

Nepcon South China 2019

Shenzhen, April 24-26 2019.

LCR-Reader-MP is still available for a limited time, LCR-Reader China, Taobao only, shop now.

LCR-Reader Multipurpose
LCR-Reader-MP Introductory VideoLCR-Reader-MP Introductory Video

Instant Evaluations With Just One Touch

The LCR-Reader line was created as a budget friendly alternative to identifying and testing components. The lightweight device is able to determine the type of component and best test parameters to use with just a touch; simply grasp a component in the tips and the device will do the rest.
All measurement values, including the main and secondary impedance values (ESR) are instantly available on the bright OLED display on the device.

The Full Range of LCR-Reader Devices

The LCR-Reader line of handheld multimeters has expanded since the beginning in 2014. These devices include a budget model that doesn't compromise on basic accuracy - the LCR-Reader, to more extensive devices with higher accuracy and a plethora of features - the LCR-Reader-MPA.

LCR-Reader, LCR-Reader-MPA, and Smart Tweezers® ST-5S: Which Do I Choose?

A basic comparison chart of LCR-Reader, LCR-Reader-MPA and Smart Tweezers is below. A more detailed version is available in pdf below also.

LCR-Reader Model Comparisons PDF

Feature ST-5S LCR-Reader LCR-Reader-MPA
Basic Accuracy 0.2% 0.5% 0.1%
Automatic L, C, R and ESR measurements Yes Yes Yes
Manual L, C, R and ESR measurements Yes Yes Yes
Designated ESR measurements Yes Yes Yes
Variable Tolerances 1, 5, 10, 20% tolerances N/A 1, 5, 10, 20% tolerances
Continuity and Diode testing Yes No Yes
Parasitic offset subtraction Yes No Yes
Li-Ion battery with micro-USB Yes Yes Yes
Display OLED OLED Backlit LCD
Weight 1 oz. 1 oz. 1.35 oz.
NIST Traceable Calibration Certificate Yes Yes
*professional task kits only
Navigation 4-way joystick One-button 4-way joystick

Technical Specs

Frequency 100 Hz - 10 kHz 100 Hz, 1 kHz, 10 kHz 100 Hz - 100 kHz
Test Signal Level 0.45, 0.9 +/- 5% Vrms 0.45 +/- 5% Vrms 1.0, 0.5, 0.1 Vrms
Source Impedance 100 Ω +/- 1% 62.5 Ω/1k Ω/16k Ω +/- 1% 100 Ω 5%

Typical Accuracy

Resistance 0.2% 0.5% 0.1%
Capacitance 0.2% 1.0% 0.1%
Inductance 0.5% 1.0% 0.1%

Measurement Range

Resistance 0.05 Ohm to 10 Mohms 0.1 Ohm to 10 Mohms 10 mOhm to 20 MOhm
Capacitance 0.5 pF to 10 uF 2 pF to 5 mF 0.1 pF to 1F
Inductance 0.5 uH to 1 H 10 uH to 1 H 10 nH to 100 H