---
product_id: 658004847
title: "FNIRSI LCR-P1 Transistor Tester, LCR Meter, Capacitor Tester, Auto Test | MOSFET/PNP/NPN, Diode/Zener, R/L/C & ESR Meter, SMD Adapter, NEC IR Remote Decode, Battery Test, USB-C Rechargeable"
brand: "fnirsi"
price: "$70.18"
currency: USD
in_stock: true
reviews_count: 13
category: "Fnirsi"
url: https://www.desertcart.us/products/658004847-fnirsi-lcr-p1-transistor-tester-lcr-meter-capacitor-tester-auto
store_origin: US
region: United States of America
---

# Auto-discharge anti-burn protection 1.44-inch full-color display 300mAh rechargeable battery with Type-C FNIRSI LCR-P1 Transistor Tester, LCR Meter, Capacitor Tester, Auto Test | MOSFET/PNP/NPN, Diode/Zener, R/L/C & ESR Meter, SMD Adapter, NEC IR Remote Decode, Battery Test, USB-C Rechargeable

**Brand:** fnirsi
**Price:** $70.18
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your electronics game with precision and protection in one pocket powerhouse!

## Quick Answers

- **What is this?** FNIRSI LCR-P1 Transistor Tester, LCR Meter, Capacitor Tester, Auto Test | MOSFET/PNP/NPN, Diode/Zener, R/L/C & ESR Meter, SMD Adapter, NEC IR Remote Decode, Battery Test, USB-C Rechargeable by fnirsi
- **How much does it cost?** $70.18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/658004847-fnirsi-lcr-p1-transistor-tester-lcr-meter-capacitor-tester-auto)

## Best For

- fnirsi enthusiasts

## Why This Product

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

## Key Features

- • **Next-Gen Safety Tech:** Built-in auto-discharge protects your components from accidental damage—work smarter, not riskier.
- • **Compact & Portable Design:** Lightweight and pocket-sized with a vibrant 1.44-inch color screen—your bench’s new best friend.
- • **Smart Auto-Identification:** Instantly detects component pins and specs, boosting your diagnostic speed and accuracy.
- • **Infrared Protocol Analysis:** Supports NEC infrared waveform decoding for seamless remote control debugging and maintenance.
- • **All-in-One Precision Tester:** Measure transistors, capacitors, resistors, inductors, diodes, and batteries with one sleek device.

## Overview

The FNIRSI LCR-P1 is a compact, battery-powered electronic component tester featuring a 1.44-inch full-color screen, Type-C charging, and a 300mAh battery. It intelligently identifies and measures a wide range of components including transistors (NPN, PNP, MOSFET), capacitors, resistors, inductors, diodes, and batteries. Its anti-burn protection automatically discharges capacitors to prevent damage, while NEC infrared waveform support enables remote control debugging. Ideal for professionals and hobbyists seeking a versatile, reliable, and portable testing solution.

## Description

FNIRSI LCR-P1 Transistor Tester, Mosfet Transistor Capacitor Tester, SMD Electronic Component Tester, Diode Triode Zener Diode Resistance Inductance Battery Test LCR Meter MOS PNP NPN ESR Meter: desertcart.com: Tools & Home Improvement

Review: A great addition to my test bench. Combines several devices into one unit. - Review for FNIRSI LCR-P1 transistor tester. I used two methods to verify the accuracy of this tester. First, by comparing the readings against my multi-meter, and second, by testing known value parts and comparing the readings. First test was with an ancient Germanium transistor. The tester identified the lead pin out, the polarity as PNP, the Vbe (base to emitter voltage) and hFE (current gain). The hFE was close to what the multi-meter read. As another test tried rotating the transistor one half turn and reinserting into the socket and it still identified the leads correctly. Next, resistor function was checked. Again, the readings were very close to what my Multi-meter read. Then Capacitance function was checked. The tester will read value and ESR (Equivalent series resistance). The values matched the multi-meter with some exceptions. It read a 2000 Pf mica capacitor as 1nF (1000 pf) that is a 50% error. Yet the Multi-meter read the correct value. Next inductance was checked. It will show the value and DC resistance of the inductor. In this case I was only able to verify the DC resistance against the multi-meter. Also tested the zener diode function. The zener voltage shown was very close to the rated value of the part. Finally, used tester to read the codes of various infrared remote controls. It could not read all remotes, not sure why. This tester does have a few quirks. When you first press the test button to wake up the unit it will show "unknown/No component/Or damaged" just press the button again and the test will proceed normally. Also the value sometimes shows as only one significant digit (1 nf) not high accuracy. One more note and this is not mentioned in the manual when charging the battery, the LED indicator will change from red to green when the battery is fully charged. To sum up, this is a well designed tester which combines several devices into one unit. The instruction manual is clear and well written. The only drawback is there is no USB power module included, but if you are like me you already have several of these lying around.
Review: FNIRSI LCR-P1 - This little tester is very useful if you work with electronics or like repairing small boards. I used it to check components like capacitors and transistors, and it helped identify them quickly without having to guess. The screen is easy to read, and the tool is small enough to keep on the bench or carry with other tools. It is especially handy when you have loose components and need to confirm what they are before using them.

## Features

- Transistor Capacitor Tester: FNIRSI LCR-P1 transistor tester can be used for the measurement and analysis of patch component, NPN, PNP, triode, MOS, field effect transistor (FET), diode, Zener diode, capacitor, resistor, inductor, battery, etc
- Friendly Design: The design of the replaceable patch seat enables measurement of both tiny precision components and high-power devices. 1.44 inch full-color screen, 300 mah battery, Type-c interface for charging and data transmission, firmware upgrade
- Anti-burn protection mechanism: The capacitance resistance esr tester automatically identifies undischarged capacitors and automatically discharges them at the moment of insertion and locking to prevent accidental damage
- NEC Infrared Waveform: FNIRSI LCR-P1 transistor detector supports the analysis of NEC infrared protocol code, so it can be used for the debugging and maintenance of remote control equipment, and provides users with comprehensive detection and analysis
- Intelligent automatic identification: Capacer tester intelligent automatic detection of component pins definition and parameters, and can quickly identify its models and specifications, thereby greatly improving the efficiency of work

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DDBPWYP8 |
| Best Sellers Rank | #5,543 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Capacitance & Resistance Meters #22 in Multi Testers |
| Brand | FNIRSI |
| Brand Name | FNIRSI |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 821 Reviews |
| Included Components | LCR-P1 *1; Patch test board *1; Test hook *3; Data line *1; Manual *1; Box *1 |
| Item Dimensions | 3.19 x 2.56 x 0.98 inches |
| Item Weight | 2.72 ounces |
| Item dimensions L x W x H | 3.19 x 2.56 x 0.98 inches |
| Manufacturer | FNIRSI |
| Measurement Type | LCR Meter |
| Model | LCR-P1 |
| Part Number | LCR-P1 |
| Power Source | Battery Powered |
| Specification Met | CE |
| Style | Transistor Tester |
| Style Name | Transistor Tester |
| Upper Temperature Rating | 40 °C |

## Product Details

- **Brand:** FNIRSI
- **Color:** Black
- **Item Weight:** 0.17 Pounds
- **Power Source:** Battery Powered
- **Style:** Transistor Tester

## Images

![FNIRSI LCR-P1 Transistor Tester, LCR Meter, Capacitor Tester, Auto Test | MOSFET/PNP/NPN, Diode/Zener, R/L/C & ESR Meter, SMD Adapter, NEC IR Remote Decode, Battery Test, USB-C Rechargeable - Image 1](https://m.media-amazon.com/images/I/71vBeoBwVCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great addition to my test bench. Combines several devices into one unit.
*by J***S on June 7, 2026*

Review for FNIRSI LCR-P1 transistor tester. I used two methods to verify the accuracy of this tester. First, by comparing the readings against my multi-meter, and second, by testing known value parts and comparing the readings. First test was with an ancient Germanium transistor. The tester identified the lead pin out, the polarity as PNP, the Vbe (base to emitter voltage) and hFE (current gain). The hFE was close to what the multi-meter read. As another test tried rotating the transistor one half turn and reinserting into the socket and it still identified the leads correctly. Next, resistor function was checked. Again, the readings were very close to what my Multi-meter read. Then Capacitance function was checked. The tester will read value and ESR (Equivalent series resistance). The values matched the multi-meter with some exceptions. It read a 2000 Pf mica capacitor as 1nF (1000 pf) that is a 50% error. Yet the Multi-meter read the correct value. Next inductance was checked. It will show the value and DC resistance of the inductor. In this case I was only able to verify the DC resistance against the multi-meter. Also tested the zener diode function. The zener voltage shown was very close to the rated value of the part. Finally, used tester to read the codes of various infrared remote controls. It could not read all remotes, not sure why. This tester does have a few quirks. When you first press the test button to wake up the unit it will show "unknown/No component/Or damaged" just press the button again and the test will proceed normally. Also the value sometimes shows as only one significant digit (1 nf) not high accuracy. One more note and this is not mentioned in the manual when charging the battery, the LED indicator will change from red to green when the battery is fully charged. To sum up, this is a well designed tester which combines several devices into one unit. The instruction manual is clear and well written. The only drawback is there is no USB power module included, but if you are like me you already have several of these lying around.

### ⭐⭐⭐⭐⭐ FNIRSI LCR-P1
*by J***S on June 29, 2026*

This little tester is very useful if you work with electronics or like repairing small boards. I used it to check components like capacitors and transistors, and it helped identify them quickly without having to guess. The screen is easy to read, and the tool is small enough to keep on the bench or carry with other tools. It is especially handy when you have loose components and need to confirm what they are before using them.

### ⭐⭐⭐⭐⭐ Pretty handy but be careful for misleading result
*by Y***K on July 12, 2026*

This component is good for identifying components and 'estimating' the parameters for the components. However, please do not rely on this too much because sometimes, it's misleading. However, in short, it's a good device for getting some idea of your component, so I recommend this. Caution is like this. For LCR measurements, the values and parameters deviate sometimes significantly from the actual values from an LCR meter. For transistor measurements, sometimes it confuses the pin out of BJTs. For both of forward and reverse direction of a PNP transistor, it said that both were 'EBC', which was impossible. However, finding the base pin could be easily done by this. However, the zener function is really convenient. I can recommend this only because of that function.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-27*