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Data Sheet PDF | Instruction Manual PDF
Description
The Testo 440 delta P Air Flow ComboKit 1 is an industrial-grade air flow measuring instrument package engineered for comprehensive balancing, flow verification, and structural auditing of ventilation ducts and terminal outlets. This premium diagnostic asset centers around the Testo 440 dP climate platform, featuring an integrated piezoresistive differential pressure sensor. The system relies on a modular architecture that connects a universal Bluetooth handle to interchangeable heads: a 100 mm vane probe head for air outlets and a 9 mm hot wire probe head for duct transversals. Enhanced with an extendable 1.0 m telescope, the kit delivers high-precision multi-parameter metrics without physical routing constraints. It features internal process data logging for streamlined export via a built-in USB interface.
B2B Applications
- Ventilation Duct Profiling: Conducting precise traversal traverses using the extendable hot wire assembly to calculate standard-compliant velocity and volumetric flow parameters.
- Terminal Grille Flow Audits: Utilizing the high-diameter 100 mm vane probe configuration at ceiling supply and return outlets for reliable spatial distribution tracking.
- Differential Filter Diagnostics: Utilizing the internal dP sensor architecture to track localized static pressure decay across filtration elements.
Technical Parameters
| Differential Pressure Measuring Range | -150 to +150 hPa |
| Differential Pressure Accuracy | ±0.05 hPa (0 to 1.00 hPa), ±0.2 hPa + 1.5 % of mv (1.01 to +150 hPa) |
| Temperature Inputs (NTC Range) | -40 to +150 °C (±0.3 °C precision within core field bounds) |
| Thermocouple Interface Input | 1 x Type K (TC Range -200 to +1370 °C) |
| Modular Probe Connectivity | 1 x Bluetooth Node, 1 x TUC Cable Connector, 1 x Internal dP cell |
| Physical Enclosure Material | Durable technical plastics |
Package Contents
- Testo 440 dP climate measuring instrument with internal dP sensor
- Universal Bluetooth handle framework
- 100 mm vane probe head module
- Hot wire probe head module ($\varnothing$ 9 mm)
- Extendable 1.0 m telescope arm
- Industrial protective transport case and factory validation report