---
product_id: 158495563
title: "Metravi ST-09B Socket Polarity Tester"
brand: "metravi"
price: "€ 3.60"
currency: EUR
in_stock: false
reviews_count: 7
url: https://www.desertcart.fi/products/158495563-metravi-st-09b-socket-polarity-tester
store_origin: FI
region: Finland
---

# 6A current capacity 250V max input voltage 30mA leakage detection Metravi ST-09B Socket Polarity Tester

**Brand:** metravi
**Price:** € 3.60
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Stay ahead of electrical faults with Metravi’s smart socket guardian!

## Quick Answers

- **What is this?** Metravi ST-09B Socket Polarity Tester by metravi
- **How much does it cost?** € 3.60 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/158495563-metravi-st-09b-socket-polarity-tester)

## Best For

- metravi enthusiasts

## Why This Product

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

## Key Features

- • **Certified Reliability:** CE-certified for trusted performance in professional electrical inspections.
- • **Leakage Current Testing:** Built-in leakage test up to 30mA ensures your circuits meet safety standards effortlessly.
- • **Compact & Portable Design:** Lightweight 200g digital tester fits perfectly in your toolkit for on-the-go diagnostics.
- • **Comprehensive Error Alerts:** Detects missing Earth, live-earth reversal, live-neutral reversal, and more for foolproof safety.
- • **Precision Polarity Detection:** Instantly verify LINE, NEUTRAL & EARTH wiring accuracy to avoid costly errors.

## Overview

The Metravi ST-09B Socket Polarity Tester is a compact, battery-powered device designed for professional-grade electrical safety checks. Supporting currents up to 6A and voltages up to 250V AC, it accurately identifies wiring errors including polarity reversals and missing earth connections. Additionally, it features a leakage current test up to 30mA, making it an essential tool for electricians and facility managers committed to flawless, code-compliant installations.

## Description

Metravi 1300 lux meter is a stable, safe, reliable mini digital light meter, widely used in lightening enterprises, agriculture and animal husbandry, mining enterprises, laboratory, office, household street lights construction and others.4 digits backlit lcd, max / min record, data hold, digital lux meter, can measure up to 200,000 lux, also measures in fc (foot candle), high sampling rate, overload indication, auto power off, low battery indication.

## Features

- To be used for currents up to 6A, Input voltage up to 250V AC
- It indicates whether the connections of LINE, NEUTRAL & EARTH is correct
- Indicates errors for missing Earth, Live earth reversal, Live Neutral Reversal, Missing Neutral, Live Earth Reversal & Missing Neutral
- Can also be used for leakage test of up to 30mA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | METRAVI |
| Power Source | Battery Powered |
| Style | Digital |
| Item Weight | 200 Grams |
| Item dimensions L x W x H | 10.2 x 25.4 x 5.1 Centimeters |
| Specification Met | CE |
| Measurement Type | Ohmmeter |
| Maximum Operating Voltage | 250 Volts |
| Manufacturer | Metravi Instruments, Metravi Instruments |
| Manufacturer | Metravi Instruments |
| Model number | ST-09B |
| Number of Memory Sticks | 1 |
| Item Weight | 200 g |
| Product Dimensions | 10.16 x 25.4 x 5.08 cm; 200 g |
| Item model number | ST-09B |
| Item Height | 2 Inches |
| Item Width | 10 Inches |
| Included Components | Polarity Tester |

## Product Details

- **Brand:** METRAVI
- **Power Source:** Battery Powered
- **Style:** Digital
- **Item Weight:** 200 Grams
- **Item dimensions L x W x H:** 10.2 x 25.4 x 5.1 Centimeters

## Images

![Metravi ST-09B Socket Polarity Tester - Image 1](https://m.media-amazon.com/images/I/51L3xWKdRCL.jpg)
![Metravi ST-09B Socket Polarity Tester - Image 2](https://m.media-amazon.com/images/I/51+kAIFMqiL.jpg)
![Metravi ST-09B Socket Polarity Tester - Image 3](https://m.media-amazon.com/images/I/51-hUqvfLEL.jpg)
![Metravi ST-09B Socket Polarity Tester - Image 4](https://m.media-amazon.com/images/I/61abLWFG2qL.jpg)
![Metravi ST-09B Socket Polarity Tester - Image 5](https://m.media-amazon.com/images/I/61Uu4VZ+lhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ world's best
*by G***L on 18 February 2022*

world's best socket tester

### ⭐⭐⭐⭐⭐ Good product
*by K***R on 28 June 2021*

Product is good.

### ⭐⭐⭐⭐ Socket check for earthing
*by A***R on 20 November 2021*

Easy to use and accurate product for finding earthing and voltage issues

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**Shop now:** [https://www.desertcart.fi/products/158495563-metravi-st-09b-socket-polarity-tester](https://www.desertcart.fi/products/158495563-metravi-st-09b-socket-polarity-tester)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-21*