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 LED/Diode Tests, Oscilloscope and More

LCR-Reader at DigiKey

Buy LCR-Reader at DigiKey LCR-Reader at DigiKey

LCR-Reader / Smart Tweezers Comparison

LCR-Reader and Smart Tweezers® Model Comparisons

New LCR-Reader MPA Logger

Speed-up component testing 10 times with LCR-Reader-MPA Bluetooth Logger

LCR-Reader MPA Video Introduction

LCR-Reader-MPA Video


LCR-Reader-R2 LCR/ESR meter

Coming Soon:LCR-Reader-R2

All-in-one 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

EPTECH On Demand

EPTECH On Demand

Siborg is virtually presenting at EPTECH On Demand, Canada's National Electronics Industry Trade Show. September 15th, 2021 at 3:20 PM EST

EDS 2022

EDS Summit 2022

EDS 2022 in Las Vegas, May 10-13 2022

Del Mar Electronics & Manufacturing Show

DMEMS 2020

DMEMS 2020 was rescheduled for May 4th-5th 2022


IEDM 2019

IEDM 2019, San Francisco, California, December 7-11, 2019

Nepcon Vietnam 2019

Nepcon Vietnam 2019

Nepcon Vietnam, September 11-13 2019.

Nepcon Korea in Seoul, May 15 - 17, 2019

Nepcon South China 2019

Nepcon South China 2019

Nepcon South China, 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