Smart Tweezers®: Simplified Component Evaluations

Smart Tweezes is a patented design concept integrating a digital multimeter with a built-in gold-plated SMD probes and a display. This light weight device can be easily held and operated by one hand and is idealy suitable for component evaluation on a PCB or a production line and for sorting of SMD components. Smart Tweezers® dramatically reduces time necessary to troubleshoot or debug a PCB simplifying process of locating a faulty component.

The new model ST-5S of the Digital Multimeter Smart Tweezers® is the same device as the Smart Tweezers® ST-5 but with an updated look, akin to the LCR-Reader. This update boasts a lower weight of 1 oz. and a bright screen with all the same function and features that have become synonymous with Smart Tweezers®.

The unique design of Smart Tweezers® combines a set of tweezer with non-magnetic stainless-steel gold-plated tweezers tips integrated with a powerful LCR-meter and bright OLED display. With automatic recognition of a measurement mode (L, C, and R) and automatic selection of the best test range allows the user to focus on the task at hand. Without the need to set-up between components, testing, sorting and evaluating components becomes much more efficient.

Inductance, Capacitance, Resistance When a component is grasped between the tweezers, Smart Tweezers® automatically determines the type of component and the best test range for highest accuracy measurements. The measurement values are then instantly available on the OLED display embedded in the handle of the device. This display is split into 3 main sections. Primary display shows present reading of the main impedance component (L, C, or R). The secondary display (at the top of the LCD screen) shows present reading of the secondary impedance component, such as a parasitic resistance of the capacitor (effective series resistor ESR).

Continuity/Open Test Smart Tweezers®feature a continuity test for testing circuitry. An internal beeper will sound when a resistance is below threshold or an open circuit has been detected.

Durable ProbesTweezers tips are made of gold-plated non-magnetic stainless steel and can grasp components to a 0201 size or 0.3 mm either loose or mounted.

Ergonomic Design and Convinient Controls Selecting the proper test functions and settings is simple with Smart Tweezers® Joystick Navigation. Settings can be selected by pressing up, down, left or right instead of using the menu. Smart Tweezers® was designed to be easy to hold and operate with just one hand, and can be set for left-handed use.

Feature Summary:

User manual in Adobe PDF format
Comparison with older models in Adobe PDF format.
Calibration Certificate

LCR-Reader: A More Affordable LCR-meter

The LCR-Reader is the Smart Tweezers® model for hobbyists looking for a device that provides an easy to use solution to testing and troubleshooting components that Smart Tweezers® offers but at a lower price at around $200 USD. LCR-Reader is very similar to Smart Tweezers® but has a slightly lower basic accuracy, and a few less features. Feature Summary
This model does not offer features such as: component sorting, continuity/diode/open circuit testing, parasitic offset subtraction feature or variable test signals (opting for only a 0.5Vrms test signal, which limits testing ceramic capacitors.) This model does not come with a calibration certificate.
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:  3.7V LiPO rechargeable 150mAh
Battery Life:  80 hours, 2 hour charging cycle
Electromagnetic Compatibility (EMC): Susceptibility and Emission: CE 89/336, 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 (0.11 lb)
Warranty:  1 year
Basic Specifications  
Measured Parameters:  C, L, R, ESR, D, Q
Measuring Frequencies:  1 kHz, 10 kHz, 120 Hz, 100 Hz
Measurement rate:  1 time per second, default
Resistance:  0.05 Ohms to 9.9 MOhms
Capacitance:  0.5 pF to 4999 µF
Inductance:  0.5µH to 999 mH
Quality Factor Q:  0.001 to 1000
Dissipation Factor D:  0.001 to 1000
Detailed Accuracy Specifications Accuracy is specified at 18°C to 28°C (64°F to 82°F), with relative humidity to 90%.
Range:  0.1Ohm - 5MOhm
Accuracy: 0.2% in range 100 R to 10 K, 0.5% in range 1 R to 1 M
Test Frequency: 1 kHz
Range:  10pF - 499µF
Accuracy: 0.2% in range 10 nF to 10 テつオF, 0.5% in range 100 pF to 1 mF
Resolution:  0.01pF in range 1pF- 100pF
Test Frequency:  1 kHz C > 1000pF; 10 kHz C < 1000pF; 100Hz C > 1µF
Range: 1µH-1H
Accuracy:  0.2% in range 10 mH to 100 mH, 0.5% in range 100 テつオH to 1H
Resolution:  0.01µH in range 1µH - 100µH
Test Frequency: 10 kHz L < 1µH; 1 kHz L > 1µH; 100Hz L > 1mH
Feature Summary  
  Fully automatic measurement of Inductance, Capacitance and Resistance
  Automatic selection of the best range
  Component sorting with 1%, 5%, 10% an 20% tolerance
  Lithium-Ion battery and USB Charger
  Continuity and Diode test

Semi-automatic offset subtraction

Purchasing Information

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Order by Phone: (519) 888-9906
Order by Fax: (519) 725-9522