11 Smart Tweezers Digital RCL RCL LCR CLR MultiMeter
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Bokar International has the Smart Tweezers and LCR Readers listed below


RFQ’s can be directed to the Bokar Distributor in your region or, if there is no distributor, please send an e-mail to czar@bokar.com and it will be re-directed to the closest selling point to minimize the shipping cost to your location.

Thank you very much for visiting our website. We will be looking for your order.


Greetings from International Marketing Team

LCR Reader MPA



  • L-C-R-ESR and LED/Diode Measurements
  • AC/DC Voltage/Current Measurements
  • Frequency, Pulse Period, Duty Cycle Meter
  • Oscilloscope, Signal Generator
  • NIST Traceable Calibration Certificate
  • Open/Short Calibration
  • Component Sorting
  • Super Cap Testing

Manual       Presentation      Quick Start Menu       Compact Info       Detailed Data Sheet


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This model upgrades the ST-5S with Bluetooth capabilities. It can send measurement data to PCs using the included USB Bluetooth receiver and program. It operates by opening a virtual serial port and sending the data in a string of Comma Separated Values. In addition to allowing for custom applications, the ST-5S-BT2 has a certified driver for use with National Instruments LabView. It also has the ability to connect to mobile device using apps from the Apple Appstore and Google Play Store.

Features on Smart Tweezers ST5S-BT

  • Manual and automatic L, C, R, ESR and Z test modes
  • Basic accuracy of 0.2%
  • Component sorting with variable tolerances of 1%, 5%, 10% and 20%
  • Adjustable test signal levels
  • Continuity/diode/short testing
  • Parasitic offset subtraction
  • Extensive menus for customized measurements
  • 1 oz. weight
  • Hard-shelled carrying case
  • NIST traceable calibration certificate
  • Li-Ion battery with micro-USB charger (included)
  • 4-way navigation joystick
  • Spare bent ergonomic tweezer tips
  • Offset Calibration Board

Technical Specifications

  • Frequency: 0.1, 0.12, 1, 10kHz +/- 0.005%
  • Test Signal Level: 0.45, 0.9 +/- 5% Vrms
  • Source Impedance: 62.5 Ω/1k Ω/16k Ω +/- 1%

Typical Accuracy

  • Resistance: 0.2%
  • Capacitance: 0.2%
  • Inductance: 0.2%

Measurement Range:

  • Resistance: 0.1 Ohm to 10 Mohms
  • Capacitance: 0.5 pF to 1 mF
  • Inductance: 0.5 uH to 1H

ST-5S-BT Manual




The ST-5S is ideal for professionals with more advanced needs. It includes a NIST traceable calibration certificate. Unlike the LCR-Reader, it allows for variable test signals of 0.5 or 1.0 Vrms and variable tolerances of 1%, 5%, 10%, or 20%. It is also capable of continuity and diode testing, displaying the active and reactive impedance components. Additionally, it is equipped with a semi-automatic offset subtraction feature to remove parasitics. Navigation is also upgraded to a 4-way joystick instead of a one-button system. These and other premium features increase user’s efficiency.

ST-5S Manual

LCR Reader

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LCR-Reader Description

The base LCR-Reader is ideal for customers who do not need the advanced features on the more expensive models. It does not come with a calibration certificate. Additionally, it does not have features such as component sorting; diode, continuity, or open circuit testing; or variable test signals. Accordingly, it is priced under $200.  

  Part Number Model Description
LCR-R1 LCR-Reader "Budget" multimeter with 0.5% basic accuracy and basic test features. Auto, L, C, R, ESR test modes; automatic test frequency selection. 1 oz. weight; micro-USB charging; one button navigation; OLED display; NIST traceable calibration certificate available.
ST-5S Smart Tweezers ST-5S 0.2% basic accuracy; Auto, L, C, R, ESR, D, Q test modes, auto/manual test frequencies; continuity/diode/short testing, semi-automatic offset calibration, comonent sorting with variable tolerances; 4-way joystick navigation; 1 oz. weight; micro-USB charging; OLED display; NIST traceable calibration certificate
ST5S-BTD Smart Tweezers ST5S-BT2 w/receiver stick Bluetooth enabled ST-5S; real time measurement recording; sends and recieves measurement data; semi-automatic pass/fail with custom profiles; sends data in a comma separated string of values; connects to communication software (TeraTerm, NI Labview, etc.); dedicated apps for PC, iOS and Android
LCR-MPA LCR-Reader-MPA 0.1% Basic Accuracy; Auto, L, C, R, ESR, D, Q tests;LED/Diode and DC resistance; AC/DC Voltage and current measurements; Oscilloscope up to 100 kHz; Frequency meter; Component tolerance/sorting; Sine Wave Signal Generator up to 100 kHz; Supercap DC test mode up to 1F; 11 test frequencies up to 100 kHz; Test signals of 0.1, 0.5 and 1.0 Vrms; Automatic component identification; Auto signal reduction for in-circuit measurements; Automatic range selection; Pass/NoPass Electrolytic Cap indication with built-in rejection table; Easy Short/Open calibration and offset removal; Backlit LCD display; Li-Poli bttery with micro-USB  charging
ST-LED Smart LED Test Tweezers Test LEDs; variable current ratings of 20, 10, and 5 mA; 12 VDC output; bronze-phosphor tweezers; can be used as tweezer probes w/included cable to test shorts, fuses, wires, switches, and PCB circuitry; comes with 12V 23AE battery, multimeter connector cable, tweezer cap and travel bag
LCR-PC LCR-Reader Kelvin Probe Connector Sheilded two-wire extension kit for LCR-Reader, Smart Tweezers, LCR-Reader-MP, LCR-Reader-MPA; turns device into low-frequency probe station; 5 attachments : long and medium pin probes, alligator clips, spade connector, multimeter jack plugs; other pin-probes available
KP-PCB Smart Tweezers/LCR-Reader Connector PCB Connector for creating Kelvin Probe Connector set; gold-plated connector 
SMD-TT SMD Multimter Test Tweezers Tweezer probes for multimeters; dual multimeter plugs; grasp components to a 0402 (metric code 1005) size;  compatible with nearly all multimeters; best for work that does not require high accuracy due to parasitics
OCB Smart Tweezers Offset Calibration Board Dummy PCB with holes representing different component sizes (0401, 0402, etc); device will show offset capacitance value when placed in holes representing component size, subtract value from actual measured value for better accuracy; can be used with Smart Tweezers' Offset Subtraction feature
LCR-FPP Fine Pin Probe for Kelvin Probe Connector 124 mm long pin-probe with fine tip; screws into Kelvin Probe Connector wire
PB-EFPP Extra-Fine Pin Probe for Kelvin Probe Connector 73 mm long pin-probe with fine tip; screws into the Kelvin Probe Connector wire
ST-PA European Power Outlet Adapter European wall adapter
LCR-CH LCR-Reader/ST-5S USB Charger USB wall charger and micro-USB for LCR-Reader and Smart Tweezers
LCR-RB LCR-Reader Rechargeable Li-Ion Battery Li-Ion battery for LCR-Reader
ST5S-R Smart Tweezers ST-5S Rechargeable battery Li-Ion battery for Smart Tweezers ST-5S
ST5-RB ST-5 Rechargeabe Li-Ion Battery Li-Ion battery for Smart Tweezers ST-5
LCR-TS LCR-Reader Spare Straight Tips Replacement gold-plated stainless steel tweezer tips for LCR-Reader
ST-TB Bent Tips Ergonomic bent tips for LCR-Reader and Smart Tweezers ST-5/ST-5S
ST5-TS ST-5/ST-5S Spare Straight Tips Replacement gold-plated stainless steel tweezer tips for Smart Tweezers ST-5/ST-5S
  ST5-TP ST-5/ST-5S Spare Precision Tips Replacemet high-quality gold-plated stainless stee tweezer tips for ST-5 /ST-5S
ST3-TS ST-3 Spare Straight Tips Replacement gold-plated stainless steel tweezer tips for Smart Tweezers ST-3
LCR-CC LCR-Reader/Smart Tweezers ST-5S Carrying Case Hard-shelled carrying case for LCR-Reader, Colibri and Smart Tweezers ST-5S
ST-CC Smart Tweezers ST-3/ST-5 Carrying Case Hard-shelled carrying case for Smart Tweezers ST-3 and ST-5

Interested Companies to distribute this product in their countries are welcome
to contact: czes@bokar.com or call USA at (570) 842-2812
This is a great tool and can be used by almost anyone working with SMD's

TO BUY from stock
see Smart Tweezers Distributor in Your Region

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Available technical information for model ST_AS:


Professional Highest-Precision R-L-C Meters

Also known as: SMART TWEEZERS

SMD Pre-Calibrated Component Identifier in a Set of Tweezers