Alsun Leak Detector: Air, Gas, Water 36-44KHz Review – Pros & Cons – allsun Ultrasonic Leaking Detector

The Alsun Leak Detector: Air, Gas, Water 36-44KHz is a real game-changer. This small tool acts like a silent bloodhound. It sniffs out hidden leaks. Leaks in air, gas, or even water lines are no match. It works by listening to sounds we cannot hear. Imagine a tiny whisper from a pinhole leak; this device amplifies it. You can find tiny holes quickly. Consequently, you save money and stress. This detector truly helps prevent bigger problems.

Furthermore, its ease of use is a major plus. No complicated setup is needed. You just turn it on and listen. It works on the principle that leaks create a high-frequency sound. This sound is invisible to our ears. However, the Alsun Leak Detector: Air, Gas, Water 36-44KHz picks it right up. Thus, it turns those silent whispers into audible signals. It is like having X-ray vision for leaks. Therefore, even an 8th grader can use it effectively. Moreover, it includes headphones for clear listening.

Ultimately, the Alsun Leak Detector: Air, Gas, Water 36-44KHz is a wise investment. It helps diagnose issues early. Think of it as a doctor for your pipes. It prevents minor drips from becoming major floods. Therefore, it protects your home and wallet. Indeed, for anyone needing to find leaks, this tool is a reliable partner. It simplifies a tricky task. Hence, it is a practical addition to any toolkit.

FEATURES:
– Ultrasonic leak detection
– Finds air, gas, water leaks
– Detects auto noise
– 36-44KHz frequency range
– Diagnosis tool
– Includes transmitter
– Easy to use
– Precise leak pinpointing
– Helps locate hidden leaks
– Versatile for various leaks

The allsun Ultrasonic Leaking Detector is a handy tool that helps you find leaks in your car, home, or anywhere else. It can spot leaks of air, gas, or even water. This device also helps find strange noises in your car. It works by listening for sounds that are too high-pitched for humans to hear, between 36 and 44 KHz. The kit comes with a transmitter that makes a sound, and then you use the detector to pinpoint where the sound is escaping, showing you exactly where the hidden leak is. It’s simple to use and very good at finding all sorts of leaks.

PROS:
– Helps in locating leaks in HVAC
– Highly recommended!
– Great product
– Quick shipping
– Great price
– Delivered on time
– Followed instructions
– Worked great
– Find a leak in a refrigeration system
– Surprised me

CONS:
– Not for vacuum leaks
– Stop functioning within a day
– Not what I expected
– Can’t detect what human ear hears
– Poorly made ultrasonic microphone

The Allsun Ultrasonic Leaking Detector Transmitter is a tool designed to help find leaks in systems like HVAC and refrigeration by detecting ultrasonic noises between 36-44KHz, which are sounds humans can’t hear. Many users found it to be a great product that worked well for locating leaks, was delivered quickly, and offered good value. However, some users were surprised that it couldn’t detect vacuum leaks or sounds audible to the human ear. A few reported that the device stopped working quickly or wasn’t what they expected, citing a poorly made microphone. Read more…










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Best Alsun Leak Detector Air Gas Water Deals

RectorSeal Better Bubble 65554 Advanced Leak Detector, Detects Refrigerant Gas, Air, and Oxygen, Fast Acting, Can Be Used at Varied Temperature/Pressure Conditions, Plumbing, 8 oz.

Image of RectorSeal Better Bubble 65554 Advanced Leak Detector, Detects Refrigerant Gas, Air, and Oxygen, Fast Acting, Can Be Used at Varied Temperature/Pressure Conditions, Plumbing, 8 oz.

$8.56 @ Amazon.com

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Key Features

  • ✅ APPLICATION: Better Bubble is an advanced leak locator that can detect refrigerant gas, air, oxygen and most other gas leaks; May be used on surface temperatures from 20°F to 250°F
  • ✅ LEAK DETECTION: Better Bubble leak locator pinpoints the smallest natural gas, LPG & A/C refrigerant leaks quickly and easily; can be used at varied temperatures and pressure conditions
  • ✅ EASY APPLICATION: Easy to spray or apply and is formulated to be used on pipe, tubing, tanks, pressure vessels, condensor and evaporator coil, and refrigerant coil
  • ✅ SPECIFICATIONS: Better Bubble leak locator; Biodegradable; contains no oils, halogens, ammonia, or amines; will not corrode metal surfaces or attack plastic or rubber; not reactive with refrigerant oils; NOT to be used on CPVC
  • ✅ FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

Product Details

Brand:Rectorseal
Model:65554
Size:8 oz
Color:BLUE
Dimensions:2.5 X 6 X 2.5 inches
Warranty:Warranty

RectorSeal Better Bubble 65432 Leak Detector, Fast Acting, Plumbing, 32 oz.

Image of RectorSeal Better Bubble 65432 Leak Detector, Fast Acting, Plumbing, 32 oz.

$21.34 @ Amazon.com (Save 12%)

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Key Features

  • ✅ APPLICATION: Better Bubble is an advanced leak locator that can detect refrigerant gas, air, oxygen and most other gas leaks; May be used on surface temperatures from 20°F to 250°F
  • ✅ LEAK DETECTION: Better Bubble leak locator pinpoints the smallest natural gas, LPG & A/C refrigerant leaks quickly and easily; can be used at varied temperatures and pressure conditions
  • ✅ EASY APPLICATION: Easy to spray or apply and is formulated to be used on pipe, tubing, tanks, pressure vessels, condensor and evaporator coil, and refrigerant coil
  • ✅ SPECIFICATIONS: Better Bubble leak locator; Biodegradable; contains no oils, halogens, ammonia, or amines; will not corrode metal surfaces or attack plastic or rubber; not reactive with refrigerant oils; NOT to be used on CPVC
  • ✅ FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

Product Details

Brand:Rectorseal
Model:65432
Size:No Size
Color:BLUE
Dimensions:4 X 12 X 3.5 inches
Warranty:Warranty

allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool

Image of allsun Pro Ultrasonic Leaking Detector Transmitter Auto Noise Finder, Electronic Stethoscope HVAC Machine Noise Monitor 36-44KHz, Air Gas Water Leak Diagnosis Tool

Key Features

  • ✅ 【Professional-Grade Ultrasonic Detection】This leak detector is engineered for automotive and industrial applications. It accurately pinpoints leaks by sensing the high-frequency sound (36-44KHz) produced by escaping air, gas, or vacuum leaks, helping you diagnose issues in engines, compressors, and pressurized systems with precision.
  • ✅ 【Versatile & Multi-Purpose Use】Suitable for a wide range of professional uses, including detecting leaks in car air conditioning systems, industrial gas lines, vacuum systems, and air brakes. The included contact probe also allows you to listen to internal mechanical sounds from bearings, valves, and pumps for diagnostic purposes.
  • ✅ 【High Sensitivity & Adjustable Volume】Features a sensitive ultrasonic microphone and a rotary volume control knob to amplify faint sounds, allowing you to filter out background noise and focus on the leak. The LED indicator lights provide a visual signal of the leak's intensity for clear confirmation.
  • ✅ 【Durable Design & Complete Kit】Built for the workshop environment, this tool comes with a sturdy build and a full set of accessories, including a focusing cone for long-range detection, a contact probe for mechanical diagnosis, and a comfortable headset for audible feedback in noisy settings.
  • ✅ 【Important Usage Guidance】PLEASE NOTE: This tool is designed for finding air, gas, and vacuum leaks in automotive and industrial contexts. It is not designed for detecting leaks in water pipes, plumbing, swimming pools, or tires. For best results, please use the included test leak to verify functionality before use.

Product Details

Brand:allsun
Color:Black
Warranty:1 Year

Camco 10324 Gas Leak Detector with Sprayer - 8 oz

Image of Camco 10324 Gas Leak Detector with Sprayer - 8 oz

Key Features

  • ✅ Test RV for propane gas leaks
  • ✅ Comes with sprayer
  • ✅ 8 ounce sprayer bottle
  • ✅ Detector bubbles at the problem area when gas is escaping

Product Details

Brand:Camco
Model:10324
Size:8 Ounce
Color:Red
Dimensions:8.25 X 2.63 X 1.5 inches
Warranty:Manufacturer Warranty

Eastman Gas Leak Detector Solution, 2 oz Bottle, Water-Soluble, Yellow-Tinted, for Natural Gas, LP, Refrigerants, and Oxygen, 65700B

Image of Eastman Gas Leak Detector Solution, 2 oz Bottle, Water-Soluble, Yellow-Tinted, for Natural Gas, LP, Refrigerants, and Oxygen, 65700B

$6.81 @ Amazon.com

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Key Features

  • ✅ EASTMAN GAS LEAK DETECTOR: 2 oz bottle of leak detection solution designed for identifying leaks in natural gas, manufactured gas, liquid propane, refrigerants, and oxygen connections
  • ✅ SAFE FORMULA: Specially formulated to be compatible with metal components and safe for use on polyethylene pipe and fittings, supporting a wide range of plumbing and gas applications
  • ✅ ENHANCED VISIBILITY: Yellow-tinted solution creates well-defined bubbles that make leak detection clear and efficient
  • ✅ WATER-SOLUBLE: Easy-to-clean formula is water-soluble, ensuring safe and convenient application for users
  • ✅ EASY TO USE: Apply liberally over joint areas to check for leaks; bubbles indicate leaks and connections can be re-tightened and retested for added peace of mind

Product Details

Brand:Eastman
Model:65700B
Size:2 oz.
Color:Blue
Dimensions:1 X 3.25 X 6.75 inches

Zepherlow Universal Leak Detector, High Precision Bubble Detection Spray, for Air Mattress, Tires, Gas Plumbing, Inflatable Products, HVAC Systems

Image of Zepherlow Universal Leak Detector, High Precision Bubble Detection Spray, for Air Mattress, Tires, Gas Plumbing, Inflatable Products, HVAC Systems

Key Features

  • ✅ UNIVERSAL APPLICATION: Ideal for detecting leaks in tires, inflatable products, plumbing pipes, gas lines, and HVAC systems with high precision bubble-forming technology
  • ✅ HIGH PRECISION DETECTION: Identifies leaks as small as pinhole size through an effective bubble formation system that makes leaks instantly visible
  • ✅ SAFE FORMULA: Non-toxic solution made with purified water and safe surfactants, suitable for use on various surfaces and materials
  • ✅ EASY TO USE: Simple 4-step process - clean surface, spray solution, observe for bubbles, and mark leak locations for repair
  • ✅ STORAGE & HANDLING: Store in a cool, dry place below 120°F, away from direct sunlight and heat sources for optimal performance

Product Details

Brand:Zepherlow
Model:20250401
Dimensions:2 X 2 X 7 inches

CRC Aerosol Leak Detector, 18 Wt Oz

Image of CRC Aerosol Leak Detector, 18 Wt Oz

Key Features

  • ✅ Highlights all leaks, even under low pressure
  • ✅ Non-flammable
  • ✅ Water-based formula- No oils, silicones or harmful solvents
  • ✅ Aerosol package enables fast and easy application with no waste or spillage
  • ✅ No odor

Product Details

Brand:CRC
Model:14503
Size:18 Ounce
Color:Clear Colorless Liquid
Dimensions:2.63 X 2.63 X 9.25 inches

ComStar Leak Bubbles Yellow HVAC & Gas Detector, Fastest-Acting Leak Detector in Today's Market - Safe, Non-Corrosive, Long-Lasting Bubbles, Detects Micro Leaks, Made in USA, 1 Quart Spray (90-204)

Image of ComStar Leak Bubbles Yellow HVAC & Gas Detector, Fastest-Acting Leak Detector in Today

Key Features

  • ✅ Leak Bubbles Yellow is fastest acting leak detector in today's market
  • ✅ Environmentally safe, non-toxic, and non-corrosive
  • ✅ Detects leaks in natural gas, refrigeration gas, nitrogen, air and C02
  • ✅ Leak Bubbles Yellow will not freeze
  • ✅ Creates long-lasting bubbles and detects micro leaks

Product Details

Brand:ComStar
Model:90-204
Size:1 Quart
Color:Yellow
Dimensions:4 X 3 X 12 Inches

Sherlock Gas and Air Regular Leak Detector Fluid 8 Ounce Bottle Blue

Image of Sherlock Gas and Air Regular Leak Detector Fluid 8 Ounce Bottle Blue

Key Features

  • ✅ Specially formulated for leak-testing lines, cylinders, and tanks carrying pure oxygen.

Product Details

Brand:WINTON PRODUCTS CO. INC.
Color:Blue
Dimensions:6 X 3.5 X 1.5 inches

Refrigeration Technologies RT100S Big Blu Micro Leak Detector 1 Qt Viper

Image of Refrigeration Technologies RT100S Big Blu Micro Leak Detector 1 Qt Viper

$21.00 @ Amazon.com (Save 11%)

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Key Features

  • ✅ ✅ Refrigeration Technologies RT100S Big Blu Micro Leak Detector 1 Qt Viper
  • ✅ ✅ Non-Corrosive
  • ✅ ✅ Detects Micro Leaks down to 0.65 oz/year
  • ✅ ✅ Safe of any type of gas
  • ✅ ✅ NSF certified for use around food

Product Details

Brand:AMZ-Warehouse
Model:RT100S
Dimensions:N/A X N/A X N/A in
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