Products > Smart Tweezers
SMART TWEEZERS Professional High-Precision R-L-C Meter
SMD Pre-Calibrated Components Identifier in a Set of Tweezers
For the users who already have ST-AS SMT Smart Tweezers:
We offer now the Retro kit: P/N ST-CH Kit to upgrade Smart Tweezers ST-AS to ST-R Model with re-chargable batteries

The ST-CH Kit includes the above shown parts which can be installed into ST-AS to convert them into ST-R and the charger (Power Supply and the Base).
The retro instruction sheet for a technician explaining how to perform the retro comes with the kit.
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Smart Tweezers is an R-L-C meter in a set of tweezers. Smart Tweezers features a unique patented mechanical and electronic design that incorporates a built-in direct precision SMD probe designed for component evaluation on the production line, component impedance testing and sorting of SMD components. Smart Tweezers dramatically cuts the time necessary to troubleshoot and debug a complex PCB making process of locating of a faulty component a breeze.
The integrated SMD probe and graphic display, combined with automatic recognition of measurement modes (R, C, and L) and the range of measurement, allow the operator to focus on the component under test. As a result, testing, sorting and evaluation of components become more efficient and cost effective.
Inductance, Capacitance, ResistanceThe primary display shows the present reading. The secondary display (on top) shows the present reading of additional parameters or measurement conditions when the primary display shows some other feature (L, C). When multiple features present, the secondary display shows one of the values. The Bar Graph provides an analog indication of the measured input.
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Ergonomic Design and Convenient ControlsSmart Tweezers features a JOG DIAL button to choose modifiers for a selected function or change the setting. Rotate the JOG DIAL button to choose from a list of functions, then press to activate this function and see it appear on the display. |
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SMT Smart Tweezers With a Charger Model ST-R This is a new model which comes with the inductive charger and needs rechargeable batteries. SMT Smart Tweezers Model ST-R is equipped with an inductive coupling board and rechargeable batteries. This model is recommended when "SMT Smart Tweezers" are used for more then 2 hours a day. It has an alternative for the power source. Can use either a USB connector or a regular wall power outlet. If anyone wants to upgrade the previous models of the SMT Smart Tweezers they can purchase an upgrade kit through www.bomir.com or can send the unit to our service department for an upgrade. |
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Technical specification:
| Physical Specifications | |
| Operating Temperature: | 0 °C to +55 °C |
| Storage Temperature: | -40 °C to +70 °C |
| Relative Humidity: | 0 % to 90 % (0 °C to 35 °C) 0 % to 70 % (35 °C to 55 °C) |
| Altitude Operating: | 0-2000 meters |
| Storage: | 10000 meters |
| Battery Type: | 1.5V LR44 Alkaline or Air zinc |
| Battery Life: | 70 Hours typical with alkaline, 200 hours with air zinc battery |
| Electromagnetic Compatibility (EMC): | Susceptibility and Emission: FCC 15 part B |
| Size: | 14.0 x 2.5 x 3.0 cm (3.94 x 0.9 x 1.5 in) |
| Weight: | 53 grams (0.11lb) |
| Warranty: | 1 year |
| Basic Specifications | |
| Measured Parameters: | C+R (ESR), L+R, R |
| Measuring Frequencies: | 100Hz, 1 kHz, 10kHz |
| Measurement update rate: | Up to 4 measurements per second |
| DC Voltage: | 0 to 800 mV (Up to 8V with manual setting) |
| Resistance: | 0.05 Ohm to 9.9MOhm |
| Capacitance: | 0.5 pF to 4999 µF |
| Inductance: | 0.5 µH to 999mH |
| Detailed Accuracy Specifications | Accuracy is specified at 18°C to 28°C (64°F to 82°F), with relative humidity to 90%. |
| Resistance | |
| Range: | 5 Ohm - 999 kOhm 0.1 - 9.9 MOhm |
| Accuracy: | <1% in the 5 Ohm - 999 kOhm range
<5% in the 0.1 -9.9 MOhm range |
| Test Frequency: | 1 kHz |
| Capacitance: | |
| Range: | 10pF - 100µF 0.5pF - 4999µF |
| Accuracy: | <3% in the 10pF - 100µF range <5% in the 0.5pF - 4999µF range |
| Test Frequency: | 1kHz: 10000pF to 1µF; 10kHz: < 9999pF; 100Hz: > 1µF |
| Inductance: | |
| Range: | 10µH-99mH 0.5µH-999mH |
| Accuracy: | <3% in the 10µH - 99mH range <5% in the 0.55µH - 999mH range |
| Test Frequency: | 10kHz: 0.5 to 99 1µH; 1kHz: 100µH to 99mH; 0.1 kHz: > 100mH |
| DC Voltage: | |
| Range: | 0V - 8V |
| Accuracy: | <1% |
Specifications in Adobe PDF format
Spare parts:
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ST-AS-Tips - Spare regular tweezers tips |
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ST-AS-Pocket - Spare pocket clip |
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ST-RB pack Rechargable Batteries Pack |
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ST-CHB Charge Receiver Board |
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ST-CH Base ST-R Charge Base |
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ST-PS 100-240 V Power Supply |
| www.smt-tool.com | www.intelligenttweezers.com |


















