TOPTES

PT520A+ Gas Leak Detector

Eco-Friendly & Rechargeable:

Upgraded with a durable rechargeable battery supporting over 3,000 charge cycles to reliably detect Methane, Propane, Natural Gas, and LPG.

17" Bendable Gooseneck:

The extended flexible sensor tip easily reaches tight spots—like water heaters, dryers, stoves, and grills—keeping you at a safe distance.

Instant Dual Alarm:

Reacts in just 0.5 seconds with a 7-level color bar display and a 75dB buzzer that intensify as gas concentrations rise (50–10,000 ppm).

Smart & Ergonomic Design:

Features an Auto-Off power saver, a quick Mute button, and a rugged, double-sided non-slip groove design for a secure, comfortable grip.

What You Get:

1× PT520A+ Detector, 1× Durable Protective Case, 1× Type-C Charging Cable, and 1× User Manual.

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A CLOSER LOOK

Explore PT520A+ Gas Leak Detector

Technical Specifications

Sensor

Electrochemical

Warm-up Time

30 seconds

Detection Range

50 to 10,000 ppm

Alarm

Audible & Visual

Power Source

Battery Powered

Operating Temperature

0 - 50°C

Relative Humidity

20 - 80%RH

Dimensions

11.22"D x 2.36"W x 5.31"H 

Weight

0.5kg

Material

ABS

Certification

CE, UKCA, RoHS, FCC

User Manual

AS SEEN ON

Choose Your Match

PT520 Gas Leak Detector Series

  • PT520A

  • PT520A+

  • PT520B+

$39.99

17 inch Long Probe

Range: 50 to 10,000 ppm

3x AAA batteries (included)

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$49.99

17 inch Long Probe

Range: 50 to 10,000 ppm

Rechargeable (Type C cable inclueded)

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$79.99

17 inch Long Probe

Range: 50 to 10,000 ppm (0-20%LEL)

Rechargeable (Type C cable inclueded)

Four-digit Actual Reading

Temperature Measure

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$39.99

17 inch Long Probe

Range: 50 to 10,000 ppm

3x AAA batteries (included)

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$49.99

17 inch Long Probe

Range: 50 to 10,000 ppm

Rechargeable (Type C cable inclueded)

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$79.99

17 inch Long Probe

Range: 50 to 10,000 ppm (0-20%LEL)

Rechargeable (Type C cable inclueded)

Four-digit Actual Reading

Temperature Measure

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$39.99

17 inch Long Probe

Range: 50 to 10,000 ppm

3x AAA batteries (included)

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$49.99

17 inch Long Probe

Range: 50 to 10,000 ppm

Rechargeable (Type C cable inclueded)

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

$79.99

17 inch Long Probe

Range: 50 to 10,000 ppm (0-20%LEL)

Rechargeable (Type C cable inclueded)

Four-digit Actual Reading

Temperature Measure

Detected Combustible Gases: Alcohol, Ammonia, Butane, Gasoline, Hydrogen, Methane, Natural Gas, Propane

Mute Button & 3 Sensitivity Adjust

Auto Power-off

Not sure which fits you?

Evaluations by Professionals

Q: Why should I choose PT520A+?

A: TopTes PT520A+ combustible gas detector is an upgraded version of PT520A. Its rechargeable battery can be recharged more than 3000 times. In addition, the single use time exceeds 2 hours, which can meet the needs of daily use.

Q: Why do I choose gas leak detectors with gooseneck?

A: With gas leak detectors with probe, you could detect the leaks in hard-to-reach areas. Besides, gas leak detectors could protect your life by preventing potential dangers such as fires or explosions and alerting the presence of toxic gases.

Q: Where could I use TopTes PT520A+ gas leak detectors?

A: Equipped with a 17-foot long swan neck, TOPTES PT520A+ Gas Leak Detector can easily reach many hard-to-reach places, such as gas pipes behind cabinets, leak points in HVAC pipes, or leaks deep in multi-pipe structures

Q: Why does the TopTes PT520A+ need to warm up for 30 seconds?

A: Allow the 30-second warm-up to finish in clean, fresh air so the sensor can stabilize and deliver accurate readings. Warming up in an environment with gas present may affect the sensor and lead to inaccurate or delayed detection.

Q: Does a slower response time of the PT520A+ during testing mean my device is defective?

A: No. Variations in airflow, distance, angle, or gas movement can cause one detector to respond slightly sooner or later. This is normal, not a defect. For best results, keep the probe 1–5 cm from the leak point and move it slowly.

TOPTES PT520A gas detector stored in protective carrying case TOPTES PT520A gas detector stored in protective carrying case TOPTES PT520A gas detector stored in protective carrying case
TOPTES PT520A gas detector stored in protective carrying case

Click to download PT520A+ Manual

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Products

Gas Leak Detector

Electrical Testing Tools

Laser Level

Distance Measurement

Carbon Monoxide Detector

Company

About Us

Terms of  Service

intellectual property rights

Blog

Support

Track Your Order

Shipping  Policy

Return Policy

User Manuals

Contact Us

Email

Wholesale

Affiliate Program