---
product_id: 540500898
title: "SYOSI Voltage Tester, 12V-300V Non-Contact and Contact Voltage Pen with NCV, Live, Null Wire Tester Electrical Tester with LCD Display Buzzer, Alarm Wire Breakpoint Finder"
brand: "syosi"
price: "€ 21.27"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/540500898-syosi-voltage-tester-12v-300v-non-contact-and-contact-voltage
store_origin: PT
region: Portugal
---

# 12V-300V AC voltage range Bright LED flashlight Dual-frequency buzzer alarm SYOSI Voltage Tester, 12V-300V Non-Contact and Contact Voltage Pen with NCV, Live, Null Wire Tester Electrical Tester with LCD Display Buzzer, Alarm Wire Breakpoint Finder

**Brand:** syosi
**Price:** € 21.27
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay safe—test smarter with SYOSI!

## Quick Answers

- **What is this?** SYOSI Voltage Tester, 12V-300V Non-Contact and Contact Voltage Pen with NCV, Live, Null Wire Tester Electrical Tester with LCD Display Buzzer, Alarm Wire Breakpoint Finder by syosi
- **How much does it cost?** € 21.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/540500898-syosi-voltage-tester-12v-300v-non-contact-and-contact-voltage)

## Best For

- syosi enthusiasts

## Why This Product

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

## Key Features

- • **Smart Voltage Alerts:** High/low voltage detected? Dual-frequency buzzer and indicator light keep you instantly informed.
- • **Built for Convenience:** Pocket-sized with pen clip and built-in screwdriver—your all-in-one electrical companion.
- • **Clear Digital Readout:** Accurate LCD display shows real-time voltage readings from 12V to 300V AC.
- • **Precision Safety First:** CE CAT.II300V certified for zero electric shock risk—test confidently without gloves.
- • **Work Anywhere, Anytime:** Bright LED flashlight and auto power-off after 5 minutes maximize efficiency and battery life.

## Overview

The SYOSI Voltage Tester is a CE CAT.II300V certified non-contact and contact voltage pen designed for safe, accurate detection of AC voltages between 12V and 300V. Featuring a dual-frequency buzzer alarm, clear LCD display, built-in LED flashlight, and a handy screwdriver function, it’s a compact, professional-grade tool engineered for millennial managers who demand precision and convenience on the go.

## Description

SYOSI Voltage Tester, 12V-300V Non-Contact and Contact Voltage Pen with NCV, Live, Null Wire Tester Electrical Tester with LCD Display Buzzer, Alarm Wire Breakpoint Finder

## Features

- 🌵【More Safe】CE CAT.II300V RoHS Certificate. No gloves are recommended during the test, testing AC voltage needs the human body and ground wire to form a circuit. No Electric Shock Risk, No Dangerous, More Accurate Readings. The current flowing through the human body is less than 0.1uA. (Min current the human body sense：1mA). The internal circuit of the Voltage Pen is connected in series with a large resistor, which will burn out when the current is too large, and the circuit will disconnect.
- 🌵【Alarm Mode】The buzzer and indicator light will be triggered when voltage is detected. High-frequency beeps means high voltage and live wire are detected. Low-frequency beeps sound mean low voltage and null wire are detected.
- 🌵【Measurable Voltage】Equipped with a sturdy metal NCV probe for testing AC voltage; the test probe touches the conductor with AC voltage, and the voltage reading will show on display. To obtain more accurate values, it is recommended not to wear gloves when using.
- 🌵【Multi-Function】Bright LED flashlight for work in dark areas. Automatic power off after 5 minutes without operation or signal detection; Pocket-sized, pen hook allows you to carry it in your shirt pocket.
- 🌵【Special Function】Can be used as a screwdriver for your convenience while working. If you have any questions about our product, please feel free to contact us. We will answer your questions within 24 hours. We focus on serving you.

## Product Details

- **Brand:** SYOSI
- **Power source:** Corded Electric
- **Style:** Compact
- **Item weight:** 0.06 Kilograms
- **Min. Operating voltage:** 12 Volts

## Images

![SYOSI Voltage Tester, 12V-300V Non-Contact and Contact Voltage Pen with NCV, Live, Null Wire Tester Electrical Tester with LCD Display Buzzer, Alarm Wire Breakpoint Finder - Image 1](https://m.media-amazon.com/images/I/61aZKDC-62L.jpg)

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**Shop now:** [https://www.desertcart.pt/products/540500898-syosi-voltage-tester-12v-300v-non-contact-and-contact-voltage](https://www.desertcart.pt/products/540500898-syosi-voltage-tester-12v-300v-non-contact-and-contact-voltage)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-22*