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💨 Detect drafts like a pro—because leaks don’t wait!
The Smoke Pencil ONE is a professional-grade handheld air leak detector designed for energy raters, HVAC technicians, and contractors. It features a trigger-controlled smoke output that visually reveals drafts and air leaks, enhanced by a built-in LED light for testing in dark spaces. Its durable, compact design resists damage and includes a 3oz bottle of non-toxic fog fluid for up to 15 hours of use. The kit comes ready to use with a locking trigger for secure storage and is backed by a 30-day money-back guarantee.
| ASIN | B09MJMYZNG |
| Alarm | Visual |
| Best Sellers Rank | #128,391 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Leak Detection Tools |
| Brand | Smoke Pencil |
| Colour | Black |
| Compatible Devices | Older blue Smoke Pencil Adapter tips |
| Customer Reviews | 3.5 out of 5 stars 208 Reviews |
| Global Trade Identification Number | 00852586007429 |
| Item Type Name | leak dedector |
| Manufacturer | Smoke Pencil |
| Model Number | SP_ONE_SLEEVE_KIT |
| Power Source | Battery Powered |
| Product Style | Modern |
| Style | Modern |
| Unit Count | 1.0 Count |
A**.
Reliable and Affordable Smoke Pen for Airflow Testing
This smoke pen has been an incredibly useful tool for understanding air movement in my home, particularly for diagnosing radon mitigation effectiveness. It produces a steady, visible stream of smoke that makes it easy to track airflow patterns around vents, doors, and basement areas. The build quality is solid, and after months of use, it still performs just as well as when I first got it. It’s compact, easy to handle, and doesn’t create any mess or strong odors. Unlike DIY alternatives, this pen provides a controlled and consistent smoke output, making it much more reliable for precise testing. For the price, it’s an excellent value. Whether you're troubleshooting radon mitigation, HVAC efficiency, or general ventilation issues, this smoke pen is a must-have tool. Highly recommended for its durability, ease of use, and affordability!
G**R
Timely
Good Product
C**S
Garbage
Waste of money
K**S
Both Broken Within a Year
I purchased two in 2025 and they worked fine for our experiment, but unfortunately when I took them out to use again this year neither of them work.
K**C
Smoke
Works fairly well. Difficult to secure plug in fill port, so leaks at times. Pump trigger is inconsistent, large puff at times and less at times. Strength of batteries may have some affect on amount of smoke. I may need to learn to work it. Product met my needs.
Trustpilot
3 weeks ago
3 weeks ago