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LCR-Reader LCR/ESR Meter Built for Simplicity LCR-Reader LCR/ESR meters simplify testing and troubleshooting PCBs and components with just a touch. When the gold-plated tweezers grasp onto a component, LCR-Reader will automatically determine the type of component and best test parameters for that component, no set-up required. All measurement values, including the primary and secondary (ESR) values, are instantly available on the OLED display built into the device. Using LCR-Reader Features Automatic and manual L, C, R and ESR measurements 0.5% Basic accuracy Automatic best test range selection 0.5 V test signal level 100 Hz, 1 kHz, 10 kHz test frequencies Li-Ion rechargeable battery with micro-USB charging 1 oz. weight OLED display Display LCR-Reader's display show the main impedance value, secondary value, test mode, component type, test frequency and battery icon. Navigation LCR-Reader uses a one-button navigation. Each press of the button changes the measurement mode: Auto>L>C>R>ESR Specification Basic Accuracy 0.5% Test Frequencies 100 Hz, 1 kHz, 10 kHz Test Signal Level 0.45 +/-5% Sine Wave Measurement Range -- Resistance R 0.1 Ω to 10 Ω Capacitance C 2 pF to 5 mF Inductance L 10 uH to 1 H Physical Specifications -- Size 14.8 x 2.0 x 1.5 cm (5.8 x 0.76 x 0.57 in) Weight 29 grams (1 oz.) Battery Type 3.7 LiPO Rechargeable 220 mAh Operating Temperature 0 °C to 50 °C LCR-Reader LCR-Reader-MPA Smart Tweezers Buying Options Buying Options Buying Options Customer Reviews 4.6 out of 5 stars 19 4.6 out of 5 stars 9 4.4 out of 5 stars 9 Price — no data — no data $318.88$318.88 Basic Accuracy 0.5% 0.1% 0.2% Automatic L, C, R and ESR Measurements ✓ ✓ ✓ Variable Tolerances N/A 1, 5, 10, 20% 1, 5, 10, 20% Continuity and Diode Testing no data ✓ ✓ Parasitic Offset Subtraction no data ✓ ✓ LED Testing no data ✓ ✓ Voltage/Current Testing no data ✓ no data Frequency Meter no data ✓ no data Oscilloscope no data ✓ no data Optional Bluetooth no data ✓ ✓ LCR-Reader LCR-Reader-MPA Smart Tweezers Buying Options Buying Options Buying Options Customer Reviews 4.6 out of 5 stars 19 4.6 out of 5 stars 9 4.4 out of 5 stars 9 Price — no data — no data $318.88$318.88 Screen Type OLED Grey/Black LCD OLED Weight 1 oz. 1.35 oz. 1 oz. NIST Traceable Calibration ✓ ✓ ✓ Navigation One-button 4-way joystick 4-way joystick Frequency Range 100 Hz, 1 kHz, 10 kHz 100 Hz - 100 kHz 100 Hz - 10 kHz Test Signal Level 0.45 +/- 5% Vrms 1.0 , 0.5 , 0.1 Vrms 0.45, 0.9 +/- 5% Vrms Source Impedance 62.5 Ω/1k Ω/16k Ω +/- 1% 100 Ω +/- 5% 100 Ω Resistance Range 0.1 Ω to 10 MΩ 10 mOhm to 20 MOhm 0.05 Ω to 10 MΩ Capacitance Range 2 pF to 5 mF 0.1 pF to 1F 0.5 pF to 10 uF Inductance Range 10 uH to 1 H 10 nH to 100 H 0.5 uH to 1 H
0.5% Basic accuracy
Fully automatic LCR/ESR meter
Instantaneous results
Instantaneous results
I was recommended the Smart Tweezers line of LCR-meters from a colleague that suggested the devices for PCB repair. Though similar, Smart Tweezers and LCR-Reader were different enough that I decided to purchase both devices and decide which one better suited my needs. Here are my findings:Both devices look the same at first glance. They are both lightweight and compact with a bright display and gold-plated tweezers. The only real difference between the two was that Smart Tweezers has a taller button that navigates like a joystick, whereas LCR-Reader is a simple button. When the button on LCR-Reader is pushed, the device changes test modes from AM (Automatic), L, C, R, ESR; Smart Tweezers button moves directionally, push up for test frequency, down for diode testing, left and right change the test mode. Pushing directly down enters the menu where you can set more specific test parameters.Similarities:Both devices automatically determine the type of component and a test frequency most suited for that component. You can manually pick the test mode that you want to use; for Smart Tweezers, you can also set the test frequency and signal level. Both devices also offer secondary parameters, e.g. ESR. Smart Tweezers and LCR-Reader also both use a micro-USB connection to charge the battery. Both came with less than half a charge, and only took about 2 hours to fully charge from this state. Both devices have the same display that is bright and easy to read.I ran some simple tests for each device, testing different components that were loose and mounted, as well as trying some that were laying on my desk that I wasn’t quite sure what they were anymore. Both devices were quick to evaluate the components. I noticed that the Smart Tweezers device had a better accuracy (information provided said about 0.2% for typical components), while LCR-Reader is about 1%.The Smart Tweezers device also offers more features, it was able to detect and test diode polarity; it also does component sorting which was handy for those unidentifiable components I had laying around. Smart Tweezers was also able to test designated Rdc and electrolytic capacitor modes, and the quality and dissipation factors. One of the favourable features I found was the ability to change the test signal level between 1 and 0.5 Vrms; the high signal level made testing ceramic capacitors more accurate. I used this feature while testing components on a PCB; the lower signal level was a plus for on-board testing because it does not open p-n junctions.The LCR-Reader handled the tests fine, but lacked in features. The design is much simpler and performed well within its ranges. It tested with a 1% accuracy which was sufficient to do the job and was less complicated without the extensive menus. For resistance typical accuracy was better than 0.4%. The LCR-Reader did outperform the Smart Tweezers device when measuring electrolytic capacitors; it was able to measure up to 5mF in the automatic mode.Both devices worked well for the tasks I had them perform, so my choice came down to pricing. The LCR-Reader was around $180 which made it a great price for the tasks it could perform. Whereas the Smart Tweezers device was around $370; though quite a bit more expensive, it was easy to see why, the Smart Tweezers offered more features than the LCR-Reader and a higher accuracy, so the decision must be taken your needs, which one to buy.
