Proster TOPPST077 LCR Meter for Capacitance, Inductance and Resistance

For component checks, a dedicated readout can be more useful than a tester chosen mainly for general electrical measurements. The Proster TOPPST077 measures capacitance, inductance and resistance, as well as diodes. Its LCD and straightforward controls support practical checks at a workbench or during study. Battery power and a storage bag make it convenient to carry between jobs.

Tech specs

• Type: LCR meter for capacitance, inductance and resistance, with diode measurement
• Display: LCD, 3½-digit, with a maximum display value of 1999
• Power: 9V battery

Capacitance ranges run from 200pF to 2000uF, with a stated accuracy of 2.5%. Inductance ranges from 200uH to 20H, also with a stated accuracy of 2.5%. Resistance ranges from 20Ω to 20MΩ, with a stated accuracy of 0.5%. The meter provides a data hold function, an indication for low battery voltage and an overrange display, making readings and status easier to follow while you work.

Getting the most from it

Use the meter to check component values when sorting parts, carrying out electronics work or learning how capacitance, inductance and resistance differ in practice. The supplied crocodile clips help connect components for measurement, while data hold lets you retain a reading on the display as you note it down. An automatic power-off function operates after 10–15 minutes, and the low-voltage and overrange indications provide useful feedback during use.

This is a component-focused choice for work where LCR readings are central, rather than selecting a tester primarily for broader electrical checks. Buyers often highlight its straightforward operation and its ability to handle the intended measuring tasks. Feedback on accuracy is mixed: some describe the readings as reasonably accurate, while others report limits, so the stated ranges and accuracy figures are useful when deciding whether it suits the precision your work requires.

In the box

The package includes the Proster LCR meter, a pair of crocodile clips, a 9V battery, a user manual and a portable storage bag. The bag keeps the meter and its listed accessories together, making it easier to store the kit between sessions or bring it to another work area.

When it makes sense

The TOPPST077 suits students, electronics hobbyists and professionals who need to measure capacitance, inductance and resistance with a portable, battery-powered instrument. For example, when checking a component at a bench, you can connect it with the crocodile clips, read the result on the LCD and use data hold while recording the value. Its range of component measurements makes it a practical fit for focused electronics work, while the compact carry bag supports moving the kit between study and workshop settings.