Review on 🔍 LCR Research Pro1 Plus - High Precision 100KHz LCR Meter with 0.1% Accuracy, LED Tester, ESR Meter, Smart SMD Tweezers, and Spare Test Tips by Jeremy Lunn

LCR Research's LCR-Pro1 handheld LCR meter is an excellent tweezer-style device for testing and troubleshooting SMD circuits. It is accurate and very easy to use. Automatically detecting resistors, capacitors, and inductors selects the best display characteristics without having to manually adjust the range. The OLED display measures 0.96 inches, which is the largest size and resolution I can find in this form factor. Menus and measurement results are very easy to read, the display can be switched to clockwise or counterclockwise rotation and the brightness can be adjusted in the menu. If you've ever tried measuring SMD components with a conventional multimeter - balancing the probes on the pins of the SMD components to ensure reliable contact - the value of the LCR-Pro1 tweezer probes is obvious - with the LCR -Pro1 gauge I had no problem identifying multiple parts mixed together on my desktop. A three-way joystick is used to navigate through the LCR-Pro1's graphical menus. The joystick control is very convenient and easy to use. . The LCR-Pro1 measures both real and imaginary impedance and displays theta angle for resistance measurements, equivalent series or parallel resistance or D for capacitance, and equivalent series or parallel resistance or Q for inductance measurements. It has many advanced features such as continuity, component sorting, diode polarity, and DC current measurement. The LCR-Pro1 has saved me a lot of time debugging my latest surface mount electronics projects. I have many tiny 01005 and 0201 SMD components close together on a PCB. Measuring with the LCR Pro1 precision tweezers is faster and easier than the LCR meters I've used in the past. One-hand operation allows the other hand to hold and correctly position the PCB during in-circuit testing. The test voltage can be selected between 0.20 V, 0.50 V and 1.0 V. For accurate in-circuit measurements without triggering semiconductor junctions, I use the 0.2V setting. 1.0V is the best choice for measuring some types of ceramic capacitors, such as the X5R, whose capacitance depends on the applied voltage. Another feature that I really liked is the self-calibration. This can be done by simply trimming and opening the tips. After self-calibration, I saw that parasitic parameters were significantly reduced. For example, when two tips were connected together, the resistance dropped below 1 mΩ. It improves the measurement results, especially with small resistances, inductances and capacitors. The LCR-Pro1 uses a lithium-ion battery that can be charged from any USB port. The battery life is pretty good. I've been using my device for about an hour a day for a week and it's still showing 80% battery. LCR-Pro1 is a high quality handheld LCR meter for measuring SMD components. I don't use it all the time, but when I need it I can't think of any other tool.