Proster
Proster LCR Meter Multimeter Capacitance Inductance Resistance Tester | 200pF-2000μF Capacitance, 200μH-20H Inductance, 200Ω-100kΩ Resistance. Rotatable LCD Data Hold Auto Power Off Zero Adj
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*Price sourced from Amazon.com. Last updated 2026-08-08. Price and availability subject to change.
Bottom line: The Proster LCR Meter Multimeter Capacitance Inductance Resistance Tester | 200pF-2000μF Capacitance, 200μH-20H Inductance, 200Ω-100kΩ Resistance. Rotatable LCD Data Hold Auto Power Off Zero Adj is a specs-and-price decision rather than a crowd-consensus one in the tools & maintenance category, priced around $32.85. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.
Pros & Cons
Pros
- ✓ Backed by Proster's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Check battery runtime and RPM/CFM specs match your case size and cleaning frequency
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
SpecPicks Verdict
SpecPicks scored Proster LCR Meter Multimeter Capacitance Inductance Resistance… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the tools & maintenance category. Proster's tools & maintenance lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Key Features
- High Accuracy LCR Meter - High accuracy measurement of capacitance, resistance, and inductance, it is a special digital instrument which is easy to be operated, the reading accuracydegree is higher with liquid crystal display 3 1/2
- Digital Multimeter Design - (Inductance) Measuring accuracy up to (2%+5); (Capacitance) Measuring accuracy up to (2%+5). Forward voltage drop of diode:Displaty forward voltage drop of diode; Forward voltage of DC:Approx.1mA; Reverse DC voltage: 2.8V
- Rotable LCD Display - Multi angle adjustment for easy reading. No need to hold tester while measuring, more convenient operation. Data hold function helps users to freeze readings on the screen, for convenient recording and analysis of data readings
- Easy to Use - Lightweight and compact ; Auto power off; Data Hold function; Low Power Indication; ZERO ADJ for Capacitance
- New Version Test Leads - Comes with crocodile clip/ Test Loads/ mini Alligator Clip; The black pen is connected to the negative pole and the red test lead is connected to the positive pole
- 【Why a Dedicated LCR Meter? – Beyond Standard Multimeters】 Standard multimeters struggle with accurate inductance readings and low-value capacitance. The Proster LCR meter is purpose-built for inductance (L), capacitance (C), and resistance (R) measurements. With 3 1/2 digit LCD (1999 max count) and dual-slope A/D conversion, it delivers reliable readings for component testing, sorting, and troubleshooting
Full Specifications
| Brand | Proster |
|---|---|
| Color | Yellow |
| Model | AE121 |
| Style | LCR Meter |
| Style Name | LCR Meter |
| Unit Count | 1 Count |
| Part Number | PST077 |
| Power Source | Battery Powered |
| Compatibility | Switch |
| Measurement Type | LCR Meter |
| Included Components | LCR Meter Set |
| Warranty Description | 18 months |
Ready to buy?
Proster LCR Meter Multimeter Capacitance Inductance Resistance Tester | 200pF-2000μF Capacitance, 200μH-20H Inductance, 200Ω-100kΩ Resistance. Rotatable LCD Data Hold Auto Power Off Zero Adj is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
View Current Price on Amazon →
*Price sourced from Amazon.com. Last updated 2026-08-08. Price and availability subject to change.
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