Temperature Mapping Solutions
Understand Temperature Distribution Across Your Storage Environment
Temperature mapping records temperatures at several points in a space at the same time, so you can see how conditions vary across cold rooms, chambers, freezers and warehouses. POLWAX dataloggers provide the measurement points and recorded data for your mapping study.
Why Temperature Mapping Matters
One sensor rarely tells the whole story
Temperature inside a storage space is seldom uniform. Distance from cooling units and doors, shelf height, airflow, product load and outside conditions all create differences between locations. Mapping makes those differences visible.
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Identify temperature variation
Find warmer and colder zones that a single fixed sensor may not detect.
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Understand measurement locations
Learn where routine monitoring sensors and temperature-sensitive goods are best placed.
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Review recorded data
A time-stamped record from every point gives an objective basis for decisions about the space.
Where Mapping Can Be Used
Typical environments for temperature mapping
These are general applications of temperature mapping. The right POLWAX logger for each depends on its temperature range and the study requirements.
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Cold rooms & cold storage areas
Variation between racks, levels and the area near doors and cooling units.
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Refrigerators & deep freezers
Distribution between shelves; freezers need loggers or probes rated for low temperatures.
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Warehouses & storage chambers
Larger spaces where height, walls and seasonal conditions affect temperature.
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Laboratories
Incubators, chambers and storage units holding temperature-sensitive materials.
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Pharmaceutical & biotech storage
Stores and units for medicines, reagents and samples kept at defined temperatures.
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Other controlled environments
Any space where a defined temperature has to be maintained across its whole volume.
Product suitability for a particular mapping study depends on the logger's range, accuracy, recording capacity and the requirements of your study plan, including any regulatory or validation requirements. Please contact our team to confirm the right instruments.
How a Mapping Study Works
A general six-stage workflow
The study is planned and evaluated by your team or your mapping service provider. POLWAX dataloggers provide the measurements and recorded data.
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Define the objective
Describe the environment, its intended temperature conditions and what the study needs to show.
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Identify measurement points
Plan locations across the space, such as corners, levels, near doors and near cooling units.
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Select loggers & ranges
Choose dataloggers whose range, accuracy and memory suit the environment and study length.
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Record temperatures
Set a common logging interval and record over the required study period.
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Review the data
Retrieve the data from each point and compare temperatures across locations and over time.
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Document findings
Record results and identify areas that need attention or ongoing monitoring.
Recommended POLWAX Products
Dataloggers for mapping measurement points
Specifications are taken from the POLWAX product pages and may change. Please check the current datasheet or ask our team before ordering.
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Multi-channel
MOTUS MR800 / MR1600 / MR3200
Portable dataloggers that record many points at once through connected Pt100 or thermocouple sensors; the usable range depends on the sensor.
- Channels
- 8 (MR800) · 16 (MR1600) · 32 (MR3200)
- Inputs
- Pt100, thermocouple (B, E, J, K, L, N, R, S, T), 4–20 mA, 0–10 V
- Accuracy
- ± 0.25 % of FS
- Interval
- 1 sec to 24 h
- Power
- 220–240 VAC (50 Hz)
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Multi-use loggerPT70 / PRH70 Multi-Use Datalogger
Reusable USB loggers for temperature (PT70) or temperature and humidity (PRH70) with display.
- Range
- −30 to +70 °C (PRH70: + 0–100 % RH)
- Accuracy
- ±0.3 °C · PRH70: ±1.8 % RH (20–80 % RH)
- Memory
- Up to 32,000+ readings
- Report
- PDF / CSV via USB 2.0 · IP65
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Multi-use loggerPTD50 / PRH50 Multi-Use Datalogger
Reusable temperature (PTD50) and temperature/humidity (PRH50) loggers with display, configured in Polwax Config.
- Range
- −30 to 70 °C (PRH50: + 0–100 % RH)
- Accuracy
- ±0.4 °C @ −10~40 °C; ±0.8 °C @ −30~−10 °C & 40~70 °C
- Memory
- Up to 33,000 points
- Interval
- 1 minute – 24 hours
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Compact loggerPTD100 / PRH100 Multi-Use Mini Datalogger
Compact reusable loggers with display and up to 6 programmable alarm limits.
- Range
- −30 to 70 °C (PRH100: + 0–100 % RH)
- Accuracy
- ±0.4 °C @ −10~40 °C; ±0.8 °C @ −30~−10 °C & 40~70 °C
- Interval
- 1 minute – 24 hours
- Report
- PDF / CSV via USB 2.0 (format set before delivery) · PTD100 IP65, PRH100 IP54
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Freezers & ultra-lowPTE50 / PTE90 Ultra-Low Temperature Datalogger
Reusable loggers with external probe for freezers and ultra-low temperature storage.
- Range
- PTE50: −50~70 °C · PTE90: −90~70 °C (probe)
- Accuracy
- ±0.4 °C
- Memory
- Up to 33,000 points
- Report
- Automatic PDF / CSV via USB 2.0
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After mappingCLIMA Connected Datalogger
For ongoing monitoring of the critical points identified by a study, with optional CloudDASH360 dashboard.
- Channels
- 1 / 2 / 4
- Range
- TH: −40 to +70 °C, 0–100 % RH · T: Pt100 −100 to 400 °C
- Network
- WiFi, GSM or Ethernet versions
- Reports
- .PDF / .CSV / .XLSX
Data Review & Reporting
Getting the recorded data out for review
USB loggers
- PTD50 / PRH50 and PTE50: recording settings made in the Polwax Config web application. For PTD100 / PRH100 and PTE90, please confirm configuration with our team.
- PTD50, PTD100 and PTE series: logging interval from 1 minute to 24 hours, selectable start delay and manual or automatic start.
- PDF and/or CSV report when the logger is connected to a USB port (on PTD100 / PRH100 the report format is set before delivery).
- PT70 / PRH70: PDF / CSV reports, supported by POLWAX web and desktop software.
MOTUS multi-channel loggers
- All channels recorded by one instrument, with readings on the touch-screen display.
- Reports in .PDF, .CSV or .XLSX with POLWAX_View10.4 software (Win10 / Win10 Pro).
- USB and RS485 on all versions; Ethernet (Modbus TCP) on + versions; Ethernet and WiFi on PRO versions.
- Password-protected configuration and an optional web-based cloud dashboard.
POLWAX product information describes data recording, export and reporting. It does not describe automatic mapping analysis or study-report generation. CSV and XLSX exports can be used for your own comparison and analysis of the recorded data.
Selection Considerations
What to consider when choosing loggers
The exact number of loggers and the mapping protocol depend on your environment and study plan. These factors help narrow down the choice.
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Temperature range
The logger must cover the lowest and highest temperatures expected in the space.
POLWAX: −30 to 70 °C (PT70, PTD50, PTD100) · down to −50 °C (PTE50 probe) or −90 °C (PTE90 probe) · MOTUS range depends on the connected sensor.
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Measurement accuracy
Accuracy should suit how tightly the space is controlled and what the study needs to show.
POLWAX: ±0.3 °C (PT70) · ±0.4 °C @ −10~40 °C (PTD50, PTD100) · ±0.4 °C (PTE) · ± 0.25 % of FS (MOTUS).
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Number & placement of points
Larger or more complex spaces generally need more points across levels and zones.
POLWAX: several individual loggers, or one MOTUS with 8, 16 or 32 sensor channels.
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Interval & study duration
Memory and battery must cover the whole study at the chosen interval.
Example: 33,000 points at a 5-minute interval is about 114 days of recording, subject to battery life (PTD50, PTE).
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Data retrieval & reporting
Decide how data will be collected from every point and in which format it will be reviewed.
POLWAX: PDF / CSV over USB (USB loggers) · PDF / CSV / XLSX with POLWAX_View (MOTUS).
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Suitability for the environment
Consider protection rating, power supply and how sensors or loggers will be placed.
POLWAX: battery-powered USB loggers, IP65 (PRH100: IP54) · MOTUS is portable with mains supply (220–240 VAC).
Technical Resources
Software and documentation
Datasheets and instruction manuals are available on request.
FAQ
Frequently asked questions
What is temperature mapping?
In general terms, temperature mapping is a study in which temperatures are recorded at several locations in a space at the same time, over a defined period, to show how temperature varies across that space.
Do POLWAX dataloggers carry out a complete mapping study automatically?
No. POLWAX product information describes measurement, recording and report export. Planning the study, choosing measurement points, analysing the data and documenting conclusions are carried out by your team or your mapping service provider.
How can we record many points at the same time?
You can place several individual dataloggers, such as PT70, PTD50 or PTD100, around the space with the same logging interval, or use one MOTUS logger with 8 (MR800), 16 (MR1600) or 32 (MR3200) channels and connected Pt100 or thermocouple sensors. Sensors are not listed in the MOTUS scope of supply, so please ask our team about suitable sensors.
Which logger can be used in freezers?
The PTE50 probe measures from −50 °C to 70 °C and the PTE90 probe from −90 °C to 70 °C. MOTUS loggers can use Pt100 or thermocouple sensors; the usable range then depends on the sensor selected. The PT70, PTD50 and PTD100 cover −30 to 70 °C.
How long can a logger record?
It depends on memory, logging interval and battery. For example, the PTD50 and PTE loggers store up to 33,000 points, which at a 5-minute interval is about 114 days; their battery life is specified at up to 2 years (1 year storage / 1 year useful life) at 25 °C with a 5-minute interval.
Can we measure humidity during the study as well?
Yes, with the humidity versions: PRH70, PRH50 and PRH100 record temperature and relative humidity.
In which formats is the data available?
The USB loggers provide PDF and/or CSV reports. MOTUS loggers produce .PDF, .CSV or .XLSX reports with POLWAX_View software. CSV and XLSX files can be opened in spreadsheet software for your own analysis.
Will the study meet regulatory requirements?
POLWAX product information does not state compliance with specific guidelines or regulations. Regulatory acceptance depends on your study protocol, execution and documentation. Please contact our team if your quality system has particular requirements for instruments or certificates.
Plan Your Temperature Mapping Application
Discuss your storage environment, measurement requirements and data recording needs with our team.