1WU-Temp Pt100 Frost 3m – Temperature Sensor
€232.40
The Pt100 sensor for extremely cold cryogenic applications down to -200°C
The HW group 1WU-Temp Pt100 Frost 3m is a temperature sensor specifically developed for extremely cold (cryogenic) temperatures from -200°C to +160°C. The internal, high-precision Pt100 measuring element offers high accuracy over this exceptionally wide temperature range, a long service life and protection class IP67. The sensor is powered directly via the RJ11 connector from the 1-Wire port and can be plugged directly into the 1-Wire sensor port of an HWg device.
The sensor is supported by all HW group devices with an RJ11 port (1-Wire or 1-Wire UNI). Calibration at 8 points is possible with the HW group Calibrator. The 1WU-Temp Pt100 Frost 3m is ideal for warehouses, food processing, freezer rooms, medical and laboratory environments, agriculture and many other industrial applications. It is offered as a single version – there are no variants or options for this model.
Highest precision for extreme cold
The 1WU-Temp Pt100 Frost 3m is the cryogenic variant of the Pt100 sensor family and is designed for use at exceptionally low temperatures.
Measuring range -200°C to +160°C
Pt100/Pt1000 platinum measuring element with an accuracy of ±(0.25 + 0.002|t|) °C and a resolution of 0.1°C – designed for cryogenic applications.
Protection class IP67
The sensor tip is fully protected against dust and temporary immersion – ideal for humid and harsh environments.
8-point calibration
Each sensor can be calibrated at up to 8 points with the HW group Calibrator for maximum measuring accuracy over the entire range.
RJ11 connector (1-Wire)
Direct connection via a 3-metre cable to the 1-Wire or 1-Wire UNI port of any HWg device.
Universally compatible
Supported by all HW group devices with an RJ11 1-Wire connection – no additional converter required.
Power supply via the 1-Wire bus
Power supply with 5V directly via the RJ11 port, with a current consumption of only approx. 2 mA.
How the 1WU-Temp Pt100 Frost 3m is designed
The sensor consists of an RJ11 connector, a 3-metre connection cable and the actual measuring tip in a slim metal housing (approx. 40 x 4 x 4 mm, approx. 200g total). The device is designed for the very wide temperature range from -200°C to +160°C; the storage environment ranges from 5°C to 40°C (5–85% RH).
RJ11 connector
At one end of the cable is an RJ11 plug that is inserted directly into the 1-Wire or 1-Wire UNI port of an HWg device – without an additional converter.
3-metre connection cable
A robust cable connects the RJ11 plug to the measuring tip and allows flexible positioning of the sensor at the actual cryogenic measuring point, away from the monitoring device.
Pt100 measuring tip in metal housing
At the end of the cable is the actual Pt100 measuring element in a slim, rod-shaped metal housing with protection class IP67 – suitable for direct contact with extremely cold media such as deep-frozen goods or liquefied gases.
Integrated converter
The converter between the Pt100 measured value and the 1-Wire protocol is already integrated into the cable, so that the sensor can be operated directly on the HWg device without any further electronics.
8-point calibration for maximum precision
Every 1WU-Temp Pt100 Frost 3m is factory-tested and can be individually calibrated if required.
- Calibration at up to 8 points over the entire measuring range
- Carried out with the HW group Calibrator
- Useful for audits and documentation requirements in regulated industries
- Regular verification of measured values via the HW group monitoring system is possible
Directly compatible with the entire HWg product portfolio
The 1WU-Temp Pt100 Frost 3m can be connected to any HWg device with an RJ11 1-Wire port without additional configuration.
- STE2 devices for monitoring up to 2 independent cold/freezer rooms
- Ares devices with up to 14 temperature sensors via GSM/GPRS or LTE
- Poseidon and Perseus product families
- Automatic sensor detection and simple setup via the web interface of the respective device
Visualisation, reports and alarms via SensDesk
The measured values can be evaluated directly on the device or via a SensDesk Technology portal.
SensDesk.com
Visualisation of measured values, periodic reports and history via the IoT portal.
Direct device access
The data can also be retrieved directly from the respective HWg device – completely without a portal.
E-mail, SMS and call alarms
In the event of a limit value being exceeded, the system warns by e-mail; SMS and call alarms are available via an additional SMS gateway device.
Open M2M protocols
For demanding applications, many HWg devices additionally support SNMP, Modbus/TCP, MQTT, XML and HWg-Push.
Installation in a few steps
The 1WU-Temp Pt100 Frost 3m is simply plugged in and automatically detected.
- Position the measuring tip at the desired cryogenic measuring point (e.g. in a -80°C freezer or a liquefied gas plant)
- Insert the RJ11 plug of the sensor into a free 1-Wire or 1-Wire UNI port of the HWg device
- The device automatically detects the sensor and displays it in the web interface
- Name the sensor there and set alarm limits for the measured value
- Optional: Connect the device to the SensDesk.com portal to use reports and historical data
- Optional: Calibrate the sensor at up to 8 points with the HW group Calibrator
Why the 1WU-Temp Pt100 Frost 3m is the right choice
Extremely wide measuring range
-200°C to +160°C for demanding cryogenic applications.
High industrial accuracy
Pt100 precision with optional 8-point calibration.
Protection class IP67
Reliable even in humid and harsh environments.
Plug & Play
Direct RJ11 connection, automatic detection.
Universally applicable
Compatible with the entire HWg device portfolio.
24-month warranty
According to the manufacturer with 24 months warranty from the date of purchase.
Practical application examples
- Cryogenic temperature monitoring in deep-freeze systems and the gas industry
- Temperature monitoring outdoors
- Remote monitoring of pharmaceutical -80°C freezers
- Temperature monitoring in cold and freezer rooms (ideal for storing temperature-sensitive medicines)
- Measurement in agriculture
Practical example: A pharmaceutical company monitors a -80°C ultra-low temperature freezer for temperature-sensitive medicines with a 1WU-Temp Pt100 Frost 3m that is connected directly to an STE2 device. In addition, a door contact reports as soon as the cabinet is opened. The measured values are continuously transferred to the SensDesk.com portal, where periodic reports for audits can be generated. If the temperature leaves the defined range, the operator immediately receives an e-mail notification; with an additional SMS gateway, the alarming can be extended to include SMS or voice calls.
Frequently asked questions
What is the HW group 1WU-Temp Pt100 Frost 3m and what is it used for?
The 1WU-Temp Pt100 Frost 3m is a high-precision Pt100 temperature sensor with RJ11 1-Wire connection, specifically for extremely cold cryogenic applications in the range from -200°C to +160°C. It is suitable for deep-freeze systems, the gas industry, pharmaceutical -80°C freezers as well as warehouse, food and laboratory environments.
Are there different variants or options?
No. The 1WU-Temp Pt100 Frost 3m is offered as a single version with a 3-metre connection cable. There are no variants or options for this model.
What distinguishes the Frost 3m from the regular 1WU-Temp Pt100 3m?
Both sensors are based on the same Pt100 technology with identical accuracy, resolution and protection class IP67. However, the Frost 3m covers a significantly extended measuring range from -200°C to +160°C, while the regular 1WU-Temp Pt100 3m is designed for -50°C to +200°C – the Frost 3m is therefore specifically designed for very low (cryogenic) temperatures.
Which devices is the sensor compatible with?
The sensor is supported by all HW group devices with an RJ11 port (1-Wire or 1-Wire UNI), e.g. STE2, Ares, Poseidon and Perseus. An additional converter is not required, as this is already integrated into the sensor cable.
How accurately does the sensor measure?
The Pt100 probe covers a measuring range from -200°C to +160°C, with an accuracy of ±(0.25 + 0.002|t|) °C and a resolution of 0.1°C. If required, the sensor can additionally be calibrated at up to 8 points.
How is the sensor calibrated?
Calibration at up to 8 points over the entire measuring range is possible with the HW group Calibrator – useful for applications with high accuracy requirements or audit obligations, for example in the pharmaceutical industry.
Does the sensor require its own power supply?
No. The 1WU-Temp Pt100 Frost 3m is powered with 5V directly via the RJ11 1-Wire connection of the connected device and consumes only approx. 2 mA. A separate power source is not required.
Questions about the 1WU-Temp Pt100 Frost 3m?
Our support team in Germany provides free advice on selection, sensor technology and configuration.
HW-Group 1WU-Temp Pt100 Frost 3m
General Information
- High-precision industrial temperature sensor with Pt100 probe
- Suitable for demanding industrial applications and low-temperature ranges
- Wide temperature measurement range from -200 to +160 °C
- High industrial measurement accuracy
- Protection class IP67
- Resolution: 0.10 °C
Temperature Measurement
- Measurement range: -200 to +160 °C
- Accuracy: ±(0.25 + 0.002 × |t|)
- Resolution: 0.10 °C
- Technology: Pt100
Connection & Communication
- Connection via RJ11
- Power supply via the RJ11 connector
- Direct connection to the 1-Wire sensor port of an HW-group device
- Supported by HW-group devices with RJ11 connector (1-Wire or 1-Wire UNI)
Calibration
- Calibration possible
- 8-point calibration
- Calibration via the HW-group Calibrator
Cable
- Cable length: 3 m
Protection Class
- Protection class: IP67
Application Areas
- Freezer and cold storage facilities
- Food processing and food storage
- Medical applications
- Laboratory environments
- Agriculture
- Industrial applications with high demands on temperature range
- Monitoring of critical temperatures and alarming
Compatibility
- HW-group devices with RJ11 interface
- 1-Wire
- 1-Wire UNI
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de
