---
product_id: 514830452
title: "TopTes Natural Gas Detector, PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane (Includes Battery x2)-Orange"
brand: "toptes"
price: "¥9077"
currency: JPY
in_stock: true
reviews_count: 13
category: "Toptes"
url: https://www.desertcart.jp/products/514830452-toptes-natural-gas-detector-pt177-gas-leak-detector-with-audible
store_origin: JP
region: Japan
---

# Pocket-sized, 120g lightweight 75dB loud audible alarm 0.5-3s rapid gas detection TopTes Natural Gas Detector, PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane (Includes Battery x2)-Orange

**Brand:** toptes
**Price:** ¥9077
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of leaks, not behind the curve! ⏱️

## Quick Answers

- **What is this?** TopTes Natural Gas Detector, PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane (Includes Battery x2)-Orange by toptes
- **How much does it cost?** ¥9077 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/514830452-toptes-natural-gas-detector-pt177-gas-leak-detector-with-audible)

## Best For

- toptes enthusiasts

## Why This Product

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

## Key Features

- • **Instant Leak Alerts:** Detects combustible gases in under 3 seconds with visual & audible alarms for immediate safety.
- • **Ultra-Portable Design:** Compact 120g device with pocket clip and storage bag—perfect for on-the-go professionals and DIYers.
- • **Smart Battery Reminder:** Power indicator flashes below 2.4V to ensure you’re never caught off guard by low battery.
- • **Auto Shut-Off Efficiency:** Saves battery life by powering down after 5 minutes of inactivity without compromising readiness.
- • **Comprehensive Gas Coverage:** Detects LPG, methane, propane, butane, natural gas, and more—your all-in-one safety companion.

## Overview

The PT177 is a compact, battery-powered combustible gas leak detector that quickly identifies multiple gas types including LPG, methane, and propane. Featuring a rapid 0.5 to 3-second detection time, a loud 75dB alarm, and five red LED indicators, it ensures immediate alerts. Designed for portability with a pocket clip and storage bag, it also includes smart battery reminders and auto shut-off for convenience and reliability. Ideal for homeowners, RV enthusiasts, and DIY professionals seeking peace of mind and proactive safety.

## Description

Free delivery and returns on all eligible orders. Shop TopTes Natural Gas Detector, PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane (Includes Battery x2)-Orange.

Review: Great bit of kit for the money - Great bit of kit, picked up a small gas leak in my motorhome, even detects flatulence!
Review: Safety and peace of mind - Great item, very handy to have laying around. Gives you great peace of mind knowing you cannot always trust your nose. In my opinion the buttons are slightly chunky and the plastic does feel like it could break if it fell on the floor from head height but overall the quality is reasonable and for safety concerns its well worth the investment.

## Features

- Combustible Gas Leak Detector: PT177 is a useful little tool that helps every household with gas appliances to quickly and easily pinpoint the leakage of combustible gas including LPG, methane, ethane, propane, butane, natural gas, coal gas, etc
- Visual and Audible Alarms: PT177 gas detector requires a 30-second auto-calibration after powering on and can detect gas and trigger an alarm within 0.5 to 3 seconds. Five red LEDs and a 75 dB audible alarm intensify as gas concentration increases
- Pocket sized with a pocket clip that allows you to carry it in your shirt pocket. The included storage bag makes the natural gas detector easy to store. It is a convenient tool for RV enthusiasts, DIYers, homeowners with gas appliances, etc
- User Friendly Features: When the battery voltage is below 2.4 volts, the power indicator light will flash to remind you to replace the battery in time. If inactive for 5 minutes without operation or detecting gas, the PT177 will automatically turn off
- What You Get: PT177 Gas Leak Detector, a drawstring storage bag, two AAA batteries, and a user manual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BQYQZF22 |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 8,101 in DIY & Tools ( See Top 100 in DIY & Tools ) 3 in Gas Detectors |
| Colour | Orange |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,280) |
| Date First Available | 5 Jan. 2023 |
| Item Weight | 120 g |
| Item model number | PT177 |
| Package Dimensions | 20.8 x 6.9 x 4 cm; 120 g |
| Part Number | PT177 |
| Power Source | Battery Powered |
| Style | Compact |

## Product Details

- **Alarm:** Audible, Visual
- **Brand:** TOPTES
- **Colour:** Orange
- **Item weight:** 0.12 Kilograms
- **Operating humidity:** 95 percent
- **Power source:** Battery Powered
- **Style:** Compact

## Images

![TopTes Natural Gas Detector, PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane (Includes Battery x2)-Orange - Image 1](https://m.media-amazon.com/images/I/516aY-CsIcL.jpg)

## Available Options

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

## Questions & Answers

**Q: How to Set Up the Detector for Accurate Readings?**
A: Before performing actual measurements, turn on the PT177 and allow it to warm up for 30 seconds (the warm-up process is mandatory). Please ensure the warm-up is conducted in a known "clean" environment to achieve accurate results.

**Q: How can I tell what sensitivity the detector is currently at?**
A: When the S button light is on, the detector is in high sensitivity mode; when the S button light is off, the detector is in low sensitivity mode.

**Q: Does the alarm continue until the situation is resolved?**
A: Yes, the alarm will continue to sound until the combustible gas concentration is below 5% of the lower explosive limit.

**Q: I suspect a gas leak, but the device does not detect anything. What should I do?**
A: Please allow the PT177 to warm up in clean air for 30 seconds before testing. The device is designed for close-range detection (1–5 cm); greater distances may reduce sensitivity. Adjust your testing position accordingly for accurate results.

**Q: Can the sensors be replaced?**
A: We do not sell sensors separately. If you find that the sensor is no longer working within three years from the date of purchase, please get in touch with us.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great bit of kit for the money
*by A***R on 30 November 2025*

Great bit of kit, picked up a small gas leak in my motorhome, even detects flatulence!

### ⭐⭐⭐⭐⭐ Safety and peace of mind
*by H***T on 2 December 2025*

Great item, very handy to have laying around. Gives you great peace of mind knowing you cannot always trust your nose. In my opinion the buttons are slightly chunky and the plastic does feel like it could break if it fell on the floor from head height but overall the quality is reasonable and for safety concerns its well worth the investment.

### ⭐⭐⭐⭐ Easy to operate
*by M***W on 15 October 2025*

The tester appears to work ok I think. It certainly detects propane gases. So far though it has only detected gases that i can smell. I have not found a leak of gas yet.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-12*