The Kanomax Duct Air Leakage Tester – Model 6905 sets a new standard for testing commercial duct systems. Lighter and more powerful than its predecessor, the 6905 combines advanced engineering with user-friendly features to deliver unmatched performance, portability, and precision for HVAC professionals.
User-Friendly and Exceptionally Accurate
The DALT 6905 is designed with a streamlined, step-by-step test configuration process, automating duct leakage testing in full compliance with the SMACNA HVAC Air Duct Leakage Test Manual and the AABC Allowable Leakage Rates. With a testing accuracy of ±2.5% of reading, it ensures reliable results that meet or exceed industry standards—critical for ensuring energy efficiency and duct system integrity.
Compact, Lightweight, and Jobsite-Ready
The 6905 improves upon the rugged reliability of the 6900 with a lighter, more compact design that’s easier to transport between job sites. Equipped with integrated pneumatic tires and a stair-walker dolly, this tester is built for mobility without sacrificing power. Its minimal footprint makes it ideal for space-constrained environments.
Full-Color HD Touch Screen Display
A responsive HD touch screen display simplifies operation with an intuitive user interface. The system walks users through the configuration process and offers easy switching between measurement units including Fahrenheit, Celsius, CFM, m³/s, l/s, and m³/h—making the 6905 an adaptable tool for any testing scenario.
No Orifice Plates Required
Unlike traditional setups, the DALT 6905 eliminates the need for orifice plates, reducing setup time and simplifying test execution. All necessary components for both positive and negative pressure testing are included with the unit—saving time and preventing the need for additional equipment.
Dual Testing Capability
The 6905 is capable of both positive and negative (decay) pressure tests, offering complete testing flexibility. Switching between test modes is fast and simple with a quick hose reconfiguration—ideal for contractors who need to adapt to different project requirements on the fly.
More Information
Navigate the tab section below to see this product’s Features & Benefits, Specifications, Resources, and more.
- Compact, Jobsite-Ready Design
Built with a small footprint and pneumatic tires for smooth mobility, the DALT 6905 is easy to transport and fits through standard 21” x 20” roof hatches—ideal for rooftop access and tight spaces. - Automated Testing with Step-by-Step Configuration
Streamline your workflow with guided test setup and fully automated duct leakage testing based on the SMACNA HVAC Air Duct Leakage Test Manual and AABC allowable leakage standards. - Dual Testing Capability
Perform both positive and negative pressure leakage tests with precision, ensuring compliance across a range of systems and applications. - Certified Accuracy and Performance
Delivers reliable results with ±2.5% of reading accuracy and supports up to ±10 inches of water gauge pressure, ensuring confidence in every measurement. - Standards-Compliant Testing
Exceeds global testing standards, including:- SMACNA HVAC (USA)
- BS EN 12237:2003 (EU)
- BS EN 1507:2006 (EU)
- DW/143 (EU)
- Eurovent 2/2 (EU)
- GB50243 (China)
- Simple Data Export for Reporting
Internal data storage with easy USB download enables seamless reporting from commissioning engineers to building owners and approving authorities. - Engineered for Real-World Use
Designed with the end-user in mind, the DALT 6905 does exactly what you need—right out of the box. Each unit ships with a calibration certificate and is backed by Kanomax’s commitment to quality and service. - Optional Heavy-Duty Protective Cover
A rugged, purpose-built cover is available for enhanced durability during transport and on-site use. - Annual NIST-Traceable Calibration Services
Maintain peak performance with convenient annual calibration services available directly from our Andover, NJ facility.
| Main Specifications | ||
|---|---|---|
| Model | DALT 6905 | |
| Airflow | Ranges | Large Nozzle: 41 to 483 CFM (70 to 821 m3/h) |
| Nozzle: 2.4 to 21 CFM (4 to 36 m3/h) | ||
| Accuracy | 2.5 % of READING ± 0.1 m3/h | |
| Resolution | 0.01 m3/h | |
| Pressure | Ranges | ± 10 in.wg (± 2500 Pa) Duct Static Pressure |
| Accuracy | 1% of READING ± 1 Pa | |
| Resolution | 0.1 Pa | |
| Temperature | Ranges | 32 to 140 °F (0 to 60 °C) |
| Accuracy | ± 1 °F | |
| Resolution | 0.1 °F | |
| Atmospheric Pressure | Ranges | 20.6 to 38.3 in.Hg (70 to 130kPa) |
| Accuracy | 2% of READING | |
| Resolution | 0.1kPa | |
| Power Source (NOTE: DALT 6905 does not operate with temporary power from an insufficient power supply.) | DALT 6905-0E | 110-120V, 1 Phase, 50/60Hz, 16A |
| DALT 6905-1E | 220-240V, 1 Phase, 50/60Hz, 10A | |
| Weight | Approx. 60kg (132lbs) | |
| Dimensions | 18.9W x 24.7D x 44.3H inches (48 x 63 x 113 cm) | |
| Data logging | Up to 1000 measurements | |
- Heavy Duty Construction Cover
- Static Pressure Probe: Model 6700-08
- 69000110-BLUE: Spare Pressure Tubing (1 meter)
Getting Started – Kanomax Duct Air Leakage Tester
Learn about what’s included with the Kanomax Duct Air Leakage Tester, its main features and modes, and how to run a leakage test easier than ever before.
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