Dracal USB-PTH420 Enhanced precision USB atmospheric pressure , temperature and relative humidity sensor

PTH420: USB sensor for temperature, relative humidity, and atmospheric pressure, offering exceptional accuracy (±0.1°C for temperature and ±1.5% for relative humidity).

This instrument, a member of the PTH series, is specially designed for environmental data acquisition where improved precision is required. The units are directly interchangeable thanks to a factory-calibrated, linear, and compensated digital sensor. The PTH420 offers a wide measurement range, capable of operating in environments ranging from -40°C to 70°C for temperature and from 0 to 100% RH for relative humidity, with a long-term drift of less than 0.03°C/year for temperature and 0.25% RH/year for relative humidity, ensuring reliable long-term measurements. With its digital sensor and USB connectivity, the PTH420 can capture and record very small temperature and humidity variations, allowing for detailed data analysis that is always harmonized. Furthermore, with its ability to measure atmospheric pressure with an accuracy of ±0.15 kPa, the PTH420 is a valuable tool for applications requiring precise knowledge of atmospheric pressure.

Like all Dracal measurement instruments, the PTH420 is compatible with free software tools, making it an essential component of a DAQ solution. For those who wish to integrate the PTH420 into their system, there are two options available: command line tools and VCP mode. If you prefer a graphical interface, DracalView is the appropriate choice.

- 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 ad 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

Application examples

- Monitoring of environmental laboratory conditions
- Usage as a working reference

Probe filters

- First filter material: Polyethylene terephthalate (PET) mesh
- Second filter material: PTFE membrane

Dimensions

CAUTION: Please remember that electromagnetic interference (EMI) may decrease the accuracy of the sensor. Avoid using this device near EMI sources such as motors, high-voltagetransformers, and fluorescent tubes.

NOTE: Note that this product is not waterproof and requires protection if contact with water is possible.

TIP: Avoid installing the sensor in a location where strong vibration is likely to occur. Strong vibrations may cause slight inaccuracies in the reading.

TIP: Before using any precision measurement equipment, it is advised to power the unit for at least 15 minutes.