SKU: 0635 1052
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The Testo 0635 1052 Fume Cupboard Probe (Digital, Wired) is a high-precision hot wire sensor specifically designed for air velocity and volume flow measurements in laboratory fume cupboards, in accordance with DIN EN 14175-3/-4. It ensures accurate testing of air inflow and exhaust flow to maintain laboratory safety and compliance with international standards.
When connected to a compatible Testo multifunction measuring instrument (such as the Testo 400, 440, or 480), this probe enables quick, reliable, and reproducible results, even at low air velocities up to 5 m/s.
Its short response time allows for real-time monitoring of fluctuating air conditions, while the automatic absolute pressure compensation ensures precise airflow calculations. The integrated measurement menu for volume flow simplifies operation — providing automatic mean calculations, min/max tracking, and duct geometry adjustments.
The digital calibration system further enhances reliability: only the probe needs calibration, allowing the measuring instrument to stay in service without downtime. This makes it a cost-effective and practical choice for laboratory testing and certification.
| Parameter | Specification |
|---|---|
| Product No. | 0635 1052 |
| Measured Parameters | Air velocity, volume flow, air temperature |
| Standards Compliance | DIN EN 14175-3 / -4 |
| Velocity Measuring Range | 0 to 5 m/s |
| Velocity Accuracy | ±(0.02 m/s + 5% of mv) |
| Velocity Resolution | 0.01 m/s |
| Temperature Measuring Range | 0 to +50 °C |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Absolute Pressure Range | +700 to +1100 hPa |
| Absolute Pressure Accuracy | ±3.0 hPa |
| Absolute Pressure Resolution | 0.1 hPa |
| Operating Temperature | 0 to +50 °C |
| Storage Temperature | -20 to +60 °C |
| Cable Length | 1.4 m |
| Dimensions (L × W × H) | 350 × 50 × 40 mm |
| Weight | 230 g |
| Product Colour | Black / Orange |
| Calibration Concept | Intelligent digital calibration (probe-only) |
Data sheet testo 440
Data sheet testo 400
Instruction manual testo Air velocity and IAQ probes with fixed cable
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