






💨 Detect leaks like a pro—don’t let drafts steal your comfort!
The Smoke Pencil ONE is a handheld, battery-powered air leak detector designed for professionals and DIYers to quickly identify drafts and air leaks. Its compact, durable design fits in your pocket, while the trigger-controlled fog reveals airflow patterns instantly. The kit includes everything needed to start detecting leaks right away, backed by a 30-day satisfaction guarantee.






| Manufacturer | Smoke Pencil |
| Part number | SP_ONE_SLEEVE_KIT |
| Item Weight | 212 g |
| Product Dimensions | 15.24 x 12.7 x 6.35 cm; 212 g |
| Item model number | SP_ONE_SLEEVE_KIT |
| Size | Sleeve Kit |
| Color | Black |
| Style | Practical |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Included components | Smoke Pencil One, Fluid, Instructions |
| Batteries Included? | No |
| Batteries Required? | Yes |
A**.
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
Good Product
C**S
Waste of money
J**E
Item did not produce hardly any smoke, was almost impossible to refill due to such small hole, and leaked all over the place. I was not able to use this for the intended task I purchased it for due to it not really doing anything.
K**C
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
2 weeks ago
4 days ago