---
product_id: 39210588
title: "DROK Transistor Tester LCR Meter, Mosfet Transistor Capacitor Tester, Mega328 NPN PNP Transistor Diode Resistor Inductor Capacitance MOS SCR ESR Meter Automatic Checker Detector"
brand: "drok"
price: "R1582"
currency: ZAR
in_stock: true
reviews_count: 7
url: https://www.desertcart.co.za/products/39210588-drok-transistor-tester-lcr-meter-mosfet-transistor-capacitor-tester-mega328
store_origin: ZA
region: South Africa
---

# Auto shut-down with 40s countdown Auto-detects NPN/PNP, MOSFET, SCR, diodes 1.8" TFT color LCD display DROK Transistor Tester LCR Meter, Mosfet Transistor Capacitor Tester, Mega328 NPN PNP Transistor Diode Resistor Inductor Capacitance MOS SCR ESR Meter Automatic Checker Detector

**Brand:** drok
**Price:** R1582
**Availability:** ✅ In Stock

## Summary

> ⚡ Test Smarter, Not Harder — Your Ultimate Component Sidekick!

## Quick Answers

- **What is this?** DROK Transistor Tester LCR Meter, Mosfet Transistor Capacitor Tester, Mega328 NPN PNP Transistor Diode Resistor Inductor Capacitance MOS SCR ESR Meter Automatic Checker Detector by drok
- **How much does it cost?** R1582 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/39210588-drok-transistor-tester-lcr-meter-mosfet-transistor-capacitor-tester-mega328)

## Best For

- drok enthusiasts

## Why This Product

- Trusted drok brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Vivid Color Display:** High-res 1.8" TFT screen with color-coded parameters for instant clarity.
- • **Smart Auto Identification:** Effortlessly detects transistor types and components—no manual input needed.
- • **Battery-Powered Portability:** Runs on a standard 9V battery—take precision testing anywhere.
- • **Energy-Saving Auto Shut-Down:** Built-in countdown timer extends battery life by powering off after inactivity.
- • **Versatile Multi-Component Testing:** Supports triodes, FETs, diodes, resistors, capacitors, inductors, MOS, SCR, and ESR.

## Overview

The DROK Transistor Tester LCR Meter is a compact, battery-powered device featuring a vibrant 1.8" TFT color LCD that automatically identifies a wide range of electronic components including NPN/PNP transistors, MOSFETs, diodes, resistors, capacitors, inductors, MOS, SCR, and ESR. Designed for precision and convenience, it includes an energy-saving auto shut-down function with a customizable countdown timer, making it an essential tool for professionals and hobbyists seeking reliable, on-the-go electronic testing.

## Description

Full description not available

## Features

- ✔ WIDE APPLICATION: This multifunctional capacitance meter can be used to test triode, field-effect tube(FET), diode, resistor, capacitor, inductor, MOS, SCR, which is available for various electric transistor testing.
- ✔ LARGE & CLEAR LCD DIGITAL DISPLAY: This amazing detector adopts 1.8" TFT color LCD screen with high-resolution. Besides, different parameter is shown with different color, convenient and simple for you to check the parameter.
- ✔ AUTOMATICAL IDENTIFICATION: DROK intelligent transistor checker is able to detect NPN and PNP transistors, N-channel and P-channel MOSFET, diodes, thyristors, resistors, capacitors or other devices automatically.
- ✔ BATTERY POWERED: This monitor is powered by DC 9V battery (not included).
- ✔ AUTO SHUT-DOWN FUNCTION: Our advanced electronic transistor tester owns auto shut-down function. There is shutdown countdown displayed on the monitor and the shutdown countdown time can be extended to 40s.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | DROK |
| Power Source | Battery Powered |
| Style | Voltage Tester |
| Item Weight | 4 Pounds |
| Min. Operating Voltage | 9 Volts |
| Upper Temperature Rating | 85 Degrees Celsius |
| Manufacturer | DROK |
| Item model number | 300427 |
| Item Weight | 4 pounds |
| Package Dimensions | 6.77 x 4.33 x 1.5 inches |
| Voltage | 9 Volts |
| ASIN | B01MS1FOYM |
| Is Discontinued By Manufacturer | No |
| Date First Available | December 27, 2016 |

## Product Details

- **Brand:** DROK
- **Power Source:** Battery Powered
- **Style:** Voltage Tester
- **Item Weight:** 4 Pounds
- **Min. Operating Voltage:** 9 Volts

## Images

![DROK Transistor Tester LCR Meter, Mosfet Transistor Capacitor Tester, Mega328 NPN PNP Transistor Diode Resistor Inductor Capacitance MOS SCR ESR Meter Automatic Checker Detector - Image 1](https://m.media-amazon.com/images/I/61Gpalf+XBL.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: I am trying to measure a inductor and it keeps coming back with a resistance.  How do I fix this?**
A: I found out that the tester can’t measure inductance below 10uH. It helps to buy a pack of inductors of various values to always check the tester. This is how I found out that mine cant’ measure inductors below 10uH.

**Q: Can it be powered with a cable?**
A: I did a simple mod in order to power it from a basic 9vdc power supply l. I simply installed a standard 12mm polarised jack into the case  (theres a slot in the top center of the pcb to allow room) and use a currwnt limited wall wart or bench top piwer supply for the required 9 volts  (solder the 2 wires from the jack  to the battery terminal connections on the pcb matching polarity). Mine has worked a charm and no worries plus you have the option of using either power source. If you would like to know more on this mod reply and I will supply you with a more detailed step by step with photos.

**Q: will this tester work with germanium transistors? also, does it report transistor leakage?**
A: I haven't found a germanium transistor to test yet, but I have tested Ge small-signal diodes with mine, so I'm fairly certain this tester can properly identify and test Ge teansistors as well.   If so, it will show the device type (PNP/NPN), ID the leads (BCE), and show the hfe (gain), but it will not show a leakage current value.
   The primary diference between Ge and Si devices is the difference in the voltage drop across a forward-biased junction. Ge junctions show a 0.3 - 0.4v drop, and Si junctions show 0.6 - 0.7v.

**Q: will it tell me the pin identification?**
A: With in reason.  You will need the spec sheet, say you have a bad unit, it may identify it as two diodes and you know it is not two diodes, it is a 222.  So YES it will / it has done it correctly for me on good devices, on devices that fail, it may show unknown device or something like a mess of diodes  or something else.  Nothing the spec sheet would show.  hope this helps.  I also use a Heathkit transistor tester so I can supply a load.  If you are working with hard to replace /find items, I suggest you also get something that will supply a real load so you can see if it breaks down after 2 minutes or something like that.  hope this helps,  I am pleased with cost vs use I have gotten.  SO far so good.  Get used to getting the pins in 1 2 3 any way, but 1,2,3.   George

## Customer Reviews

### ⭐⭐⭐⭐⭐ This Drok tester is a pretty good go/no-go tester for components
*by W***W on January 20, 2024*

The Drok tester is similar to many units, but is better built than most. The product includes a zero insertion force socket which may be plugged into the header socket holes protruding from the front of the unit. The fit of the ZIF could be firmer, and it probably would have been just as well to mount the ZIF to the circuit board and not bother with headers.The operation is pretty straight forward and the unit had no trouble identifying various types of thyristors, junction transistors, MOSFETs and diodes I tried. The only device which tripped up detection was a 50 Amp Schotty diode, which showed as “no component.” To be fair, that diode also eluded an expensive tester. I know the diode is good because it behaves properly under load.I believe this tester is a handy addition to have on the work bench as long as you keep your expectations realistic about what it can do.

### ⭐⭐⭐⭐⭐ Useful for first-pass bipolar transistor matching, JFET matching.
*by M***Z on May 9, 2025*

Works fast. DOES NOT test unijunction transistors, silicon unilateral switches, or silicon controlled switches (old analog exotic devices). DOES test JFETs, SCRs, MOSFETs, BJT's and diodes.

### ⭐⭐⭐⭐ Nice bench top tool
*by D***E on March 4, 2023*

I rated this item three stars as I found that it is handy and works pretty nice. I’ve tested several items thus far and found that it is accurate and easy to use. Three cons on this device worth knowing. (1) It eats up batteries fast, and these 9v batteries ain’t cheap. (2) The fast insert device is nice, and pretty much necessary, but falls out easily. Mine has become a floor dweller on more than one occasion, because it will not stay inserted in the device. (3) Price - I found the same device on TEMU.com for $12.00! This is a Chinese company, and it will take two weeks to get the item. But all these inexpensive test fixtures are coming from China. And for $12.00 I can wait the two weeks.

## Frequently Bought Together

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-01*