Dracal USB-PTH450 Atmospheric pressure, temperature and relative humidity sensor with improved accuracy and aluminum probe
Dracal USB-PTH450 Atmospheric pressure, temperature and relative humidity sensor with improved accuracy and aluminum probe
- Brand: Dracal
- MPN: USB-PTH450
- Part #: IPCDAL20001
- UPC:
- Brand: Dracal
- MPN: USB-PTH450
- Part #: IPCDAL20001
- UPC:
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Dracal USB-PTH450 Atmospheric pressure, temperature and relative humidity sensor with improved accuracy and aluminum probe
- Brand: Dracal
- MPN: USB-PTH450
- Part #: IPCDAL20001

Product URL: https://www.pbtech.com/pacific/product/IPCDAL20001/Dracal-USB-PTH450-Atmospheric-pressure-temperature
Features
PTH450: USB sensor with improved precision for temperature, relative humidity, and atmospheric pressure (±0.1°C/±1.5% RH), equipped with a particle filter and an aluminum tip for harsh environments.
The PTH450 allows for the acquisition of temperature, relative humidity, and atmospheric pressure data in a harmonized manner, thanks to its advanced electronics. As a member of the PTH series, it stands out as the most robust, with its anodized aluminum-coated probe capable of withstanding temperatures of up to 125°C. The compact aluminum probe makes it easy to install in confined spaces, and the integrated filtration membrane provides additional protection against dust.
Furthermore, the probe cable is coated with silicone, making it highly resistant to heat, chemicals, UV radiation, and mechanical stress.
Like all Dracal measurement instruments, the PTH450 works with free software tools, making it an integral part of a DAQ (Data Acquisition) solution. For those looking to integrate the PTH450 into their system, command-line tools and VCP (Virtual COM Port) mode are two possible options. For those who prefer a graphical interface, DracalView is highly recommended.
Easy to use in your applications
- Virtual COM option (VCP)
- dracal-usb-get: command-line data integration tool
- dracal-sensgate-get: command-line tool for wireless access to sensors connected to a SensGate
- RVCP: REST API for wireless access to VCP instruments connected to a SensGate
Multiple integration and code examples, including Python, C, C++, Java, Node.js, C#, Grafana and LabVIEW.
Free data monitoring and calibration software
Be instantly operational with DracalView: Dracal's free data visualization, logging and calibration software
- Works under Windows (Win7/8/10/11 64&32-bit), Mac OS X and Linux
- Simultaneous visualization and logging of an unlimited number of sensors
- Automatic synchronization with Dracal's Wi-Fi gateway
- Easy calibration mechanism open to the end-user
Examples of use
- Reference instrument for calibrating other instruments
- Climatic chamber
- Monitoring environmental conditions
at the CERN
in telematics
in laboratory settings (for ISO purposes, in nuclear physics, for audio product development)
in environmental engineering
Dimensions
Warning: This product should not be used in applications where its failure may cause personal injury.
Note: Data may change without notification, and you are strongly advised to obtain copies of the most recently issued datasheet.
Specifications
What is included
One (1) PTH450 measuring instrument
One (1) USB Cable
Quick installation guide
Data acquisition solution for DAQ system
Temperature (probe)
Operating range
-40°C to 125°C
Extended temperature range
-45°C to 130°C
Accuracy (typical)
±0.1°C (20°C to 60°C)
±0.2°C (-40°C to 20°C)
±0.4°C (60°C to 125°C)
Resolution (typical)
0.015°C
Repeatability (typical)
0.06°C
Long-term drift
<0.03°C/year
Relative humidity (probe)
Operating range
0 to 100%RH
Accuracy at 25°C (typical)
±1.5%RH (0 to 80%RH)
±2%RH (80 to 100%RH)
Accuracy at 0 to 80°C (typical)
±2.0% from 0 to 100%RH,
Resolution (typical)
0.01%RH
Long-term drift (-40 to 125°C)
<0.25%RH/year
Atmospheric (barometric) pressure
Operating pressure range
45 to 110 kPa
Accuracy at 25°C
±0.15 kPa
Extended pressure range
1 to 120 kPa
Overpressure
600 kPa
Resolution
0.0065 kPa
Signal Noise filter
1st Order
Internal factory-calibrated coefficients
ADC resolution
24 bits
Altitude resolution
approx. 10 cm
Sensor IC
MS5611
Long-term drift
±0.1 kPa/year
Probe filters
First filter material
Puncture anodized aluminum
Second filter material
PTFE membrane
Efficiency
>99.99% for particles of 200 nm
Miscellaneous
Sensor cable material
Silicone
Sensor housing
Anodized aluminum
USB cable length
1 meter (3 ft.)
Operating temperature range (USB cable interface)
0°C to 70°C
Powered through
USB
Compliance
RoHS3 and CE
Note
This product can operate at 100 %RH but is not waterproof. Protect the sensor and CPU against direct exposure to water or snow. Extra housing may be required depending on the application.
It is recommended that the probe be installed pointing down to reduce the risk of water infiltration or build-up in the probe.