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Testo Humidity/Temperature Probe (Digital, with Bluetooth®)
SKU: 0636 9731
ra
$467.00 Excl. GST
$513.70 Incl. GST
Testo Humidity/Temperature Probe (Digital, with Bluetooth®)
The Testo 0636 9731 Digital Humidity/Temperature Probe (Bluetooth®) is a versatile and reliable sensor designed for accurate humidity and air temperature measurement in HVAC systems, refrigeration units, laboratories, and indoor environments. It’s ideal for applications in storage, work, and refrigerated rooms, as well as air conditioning ducts and heat pump systems.
With a measuring range of 0 to 100% RH and -20 to +70 °C, this probe ensures dependable results even in demanding conditions. The integrated long-term stable humidity sensor, traceable to international standards (ILAC, PTB, and NIST), guarantees lasting accuracy and confidence in every reading.
Using Bluetooth® connectivity (range up to 20 m), the probe transmits data directly to compatible Testo multifunction instruments, including the Testo 400, 440, and 480. This wireless connection reduces clutter and enhances efficiency during setup and operation.
The intuitive measurement menu allows for structured data capture — enabling long-term logging, dew point, wet bulb temperature, and absolute humidity calculations. The probe’s integrated handle button lets users store readings or start/stop data logging with ease, simplifying measurements in fast-paced environments.
The intelligent calibration system minimizes downtime by allowing calibration of the probe head independently of the instrument. And thanks to the universal handle design, you can interchange different Testo probe heads for multiple applications, ensuring maximum flexibility.
Testo Humidity Probe - Key Features
- Measures relative humidity and air temperature with high precision
- Automatic calculation of dew point, wet bulb temperature, and absolute humidity
- Bluetooth® wireless connection (up to 20 m range) for easy, cable-free operation
- Compatible with Testo multifunction instruments (e.g., 400, 440, 480)
- Intuitive long-term measurement menus for trend analysis and comfort studies
- Integrated handle button to save readings or control measurement sequences
- Stable and durable humidity sensor, traceable to ILAC, PTB, and NIST standards
- Smart calibration concept – calibrate the probe head independently for continuous use
- Universal handle system – connect different probe heads to reduce equipment needs
- Perfect for HVAC, refrigeration, cleanrooms, and comfort-level analysis
Testo Humidity Probe - Specifications
| Parameter | Specification |
|---|---|
| Product No. | 0636 9731 |
| Temperature Sensor Type | NTC |
| Temperature Range | -20 to +70 °C |
| Temperature Accuracy | ±0.5 °C |
| Temperature Resolution | 0.1 °C |
| Humidity Sensor Type | Capacitive |
| Humidity Range | 0 to 100 %RH |
| Humidity Accuracy | ±2 %RH (5 to 90 %RH) |
| Humidity Resolution | 0.1 %RH |
| Long-term Stability | ±1 %RH/year |
| Temperature Coefficient | ±0.03 %RH/K (k=1) |
| Probe Shaft Diameter | 12 mm |
| Probe Shaft Length | 140 mm |
| Operating Temperature | -5 to +50 °C |
| Storage Temperature | -20 to +60 °C |
| Weight | 165 g |
| Dimensions (L × W × H) | 290 × 50 × 40 mm |
| Battery Type | 4 × AA batteries |
| Battery Life | Up to 140 hours |
| Data Transfer | Bluetooth® |
| Bluetooth Range | Up to 20 m |
| Product Colour | Black / Orange |
Data sheet testo 440
Data sheet testo 400
Instruction manual testo Air velocity and IAQ probes with Bluetooth® handle
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