Freeze Indicator
POLWAX PolSENSE™ is a compact electronic freeze indicator designed to monitor accidental freezing events during the storage, handling and transportation of temperature-sensitive products. The device continuously monitors ambient temperature and provides a clear visual indication when the configured temperature threshold has been exceeded for the predefined duration.
Reliable Electronic Freeze Protection for the Cold Chain
PolSENSE™ is a compact electronic freeze indicator designed to monitor temperature exposure and identify accidental freezing events affecting temperature-sensitive products. The device is intended for storage, handling and transportation applications throughout the cold chain.
Unlike conventional chemical freeze indicators, PolSENSE uses electronic temperature sensing technology and provides a clear visual indication when the configured temperature threshold has been exceeded for the specified duration.
PolSENSE requires no user activation, calibration or maintenance. The device is factory preset and always active, with no start or stop function.
The PolSENSE family is available in three configurations: PolSENSE-O with a 10-minute alarm condition below 0°C, PolSENSE-Y with a 60-minute alarm condition below 0°C, and PolSENSE-G with a 60-minute alarm condition below −0.5°C.
Choose the Right PolSENSE Variant
PolSENSE is available in three factory-configured versions for different freeze exposure monitoring requirements.
PolSENSE-G
Alarm condition when exposed to temperatures below −0.5°C / +31.1°F for more than 60 minutes.
PolSENSE-O
Alarm condition when exposed to temperatures below 0°C / +32°F for more than 10 minutes.
PolSENSE-Y
Alarm condition when exposed to temperatures below 0°C / +32°F for more than 60 minutes.
Technical Specifications
Technical specifications for the PolSENSE electronic freeze indicator family.
| Specification | PolSENSE-G | PolSENSE-O | PolSENSE-Y |
|---|---|---|---|
| Product Name | PolSENSE | PolSENSE | PolSENSE |
| Product Type | Electronic Freeze Indicator | Electronic Freeze Indicator | Electronic Freeze Indicator |
| Alarm Limit | −0.5°C / +31.1°F | 0°C / +32°F | 0°C / +32°F |
| Alarm Time | 60 min below −0.5°C | 10 min below 0°C | 60 min below 0°C |
| Measurement Interval | 2 min | 20 sec | 2 min |
| Storage Conditions | +4°C to +50°C / +40°F to +122°F | +4°C to +50°C / +40°F to +122°F | +4°C to +50°C / +40°F to +122°F |
| Operating Temperature | −20°C to +55°C / −4°F to +131°F | −20°C to +55°C / −4°F to +131°F | −20°C to +55°C / −4°F to +131°F |
| Temperature Accuracy | ±0.3°C typ.; ±0.6°F typ. | ±0.3°C typ.; ±0.6°F typ. | ±0.3°C typ.; ±0.6°F typ. |
| Time Measurement Accuracy | ±5% typ. at 0°C / 32°F | ±5% typ. at 0°C / 32°F | ±5% typ. at 0°C / 32°F |
| Battery | Lithium coin cell CR2450 | Lithium coin cell CR2450 | Lithium coin cell CR2450 |
| Battery Compliance | IATA DGR PI 970-II | IATA DGR PI 970-II | IATA DGR PI 970-II |
| Display | √ / × | √ / × | √ / × |
| Protection Class | IP67 | IP67 | IP67 |
| Label | Barcode included | Barcode included | Barcode included |
| Operating & Shelf Life | Up to 5 years | Up to 5 years | Up to 5 years |
| Activation | Always active; no start function | Always active; no start function | Always active; no start function |
| Stopping | No stop function | No stop function | No stop function |
| Configuration | Factory preset | Factory preset | Factory preset |
| Manipulation | Can be used as required during shelf life if alarm has not been shown | Can be used as required during shelf life if alarm has not been shown | Can be used as required during shelf life if alarm has not been shown |
| Shell Material | Transparent ABS plastic | Transparent ABS plastic | Transparent ABS plastic |
| Housing / Mounting Details | CE mark on back cover; 3M tape depending on customer requirement | CE mark on back cover; 3M tape depending on customer requirement | CE mark on back cover; 3M tape depending on customer requirement |
| Dimensions | 55 × 40 × 13 mm | 55 × 40 × 13 mm | 55 × 40 × 13 mm |
| Weight | 23 g | 23 g | 23 g |
| Warranty | 2 years from delivery | 2 years from delivery | 2 years from delivery |
| Compliance | RoHS, REACH, CE, EN60068, EN61000, EN60529, IATA | RoHS, REACH, CE, EN60068, EN61000, EN60529, IATA | RoHS, REACH, CE, EN60068, EN61000, EN60529, IATA |
| Standard | EN12830:2018 | EN12830:2018 | EN12830:2018 |
Designed for Reliable Freeze Monitoring
PolSENSE combines electronic temperature sensing, clear visual indication and compact construction for cold chain applications.
High Accuracy Temperature Detection
Typical temperature accuracy of ±0.3°C / ±0.6°F supports dependable freeze exposure monitoring.
Reliable Cold Chain Protection
Designed to monitor accidental freezing events during storage, handling and transportation.
User-Friendly Interface
The √ / × visual indication provides a straightforward way to identify freeze exposure status.
No Activation Required
PolSENSE is always active and does not require a manual start function.
No Calibration or Maintenance
The device is designed to operate without user calibration or maintenance.
IP67 Protection
The electronic indicator is housed in a transparent ABS plastic enclosure with IP67 protection.
Long Shelf Life
Operating and shelf life is specified up to 5 years, with expiry information printed on the label.
Compact & Lightweight
The device measures 55 × 40 × 13 mm and weighs only 23 g.
Standards Compliant
Designed according to applicable standards including EN12830:2018, RoHS, CE and IP67 requirements.
Cold Chain & Temperature-Sensitive Applications
PolSENSE is designed for monitoring freeze-sensitive products throughout storage, handling and transportation.
Vaccines
Monitor vaccine shipments for accidental exposure to freezing temperatures during cold chain transportation.
Pharmaceutical Products
Help identify freeze exposure that may require product quality evaluation or testing.
Biologics & Medical Samples
Suitable for monitoring temperature-sensitive biological and medical materials.
Diagnostic Reagents
Provide freeze exposure indication for temperature-sensitive diagnostic products.
Laboratory Materials
Support freeze exposure monitoring for laboratory materials and samples.
Food & Beverage Logistics
Monitor temperature exposure in temperature-sensitive food and beverage logistics.
Cold Chain Transportation
Provide a simple visual freeze exposure indication during refrigerated transportation.
Temperature-Sensitive Storage
Monitor products stored under controlled temperature conditions where accidental freezing must be identified.
Insulated Transport Packaging
Suitable for placement with products inside insulated shipping and transport packages.
Simple Freeze Exposure Monitoring
PolSENSE monitors the temperature of its environment and displays whether the configured freeze exposure condition has occurred. It does not evaluate product quality itself; its purpose is to signal when product quality evaluation or testing may be required.
- Enclose PolSENSE with the products being monitored
- No user activation required
- Always active throughout service life
- Factory preset configuration
- No calibration required
- No maintenance required
- Clear √ / × visual indication
- Different alarm configurations available
Simple Visual Verification
Before reading the PolSENSE display, place it in an environment above freezing temperature for at least 2 minutes. Observe the display and note the indication shown.
If the display remains blank, expose PolSENSE again at room temperature and wait at least 2 minutes. If it remains blank, check the expiry date.
PolSENSE Monitoring Process
A simple process for checking whether a temperature-sensitive product has experienced the defined freeze condition.
Datasheet & Manual
Download the technical documentation for PolSENSE-G, PolSENSE-O and PolSENSE-Y.
Need PolSENSE for Your Application?
Contact the POLWAX team for product selection, quantity requirements, technical information, application support and quotation for PolSENSE-G, PolSENSE-O or PolSENSE-Y.
- PolSENSE-G · Green
- PolSENSE-O · Orange
- PolSENSE-Y · Yellow
- Technical and application assistance
- Quotation and quantity requirements
Request Product Information
Tell us your application and requirement. Our team can help you select the appropriate PolSENSE variant.
Send Product InquiryPractical Freeze Protection for the Cold Chain
PolSENSE combines electronic temperature sensing, clear visual indication, compact construction and factory-configured alarm conditions to provide a practical solution for monitoring temperature-sensitive products.
- Electronic temperature sensing technology
- High accuracy temperature detection
- Reliable cold chain protection
- No activation required
- No calibration or maintenance required
- IP67 protection
- Up to 5-year operating and shelf life
- 55 × 40 × 13 mm compact design
- Only 23 g weight
- EN12830:2018 compliance
PolSENSE Frequently Asked Questions
What is PolSENSE?
PolSENSE is a compact electronic freeze indicator designed to monitor accidental freezing events during storage, handling and transportation of temperature-sensitive products.
What are the PolSENSE variants?
The PolSENSE family includes PolSENSE-G, PolSENSE-O and PolSENSE-Y, with different factory-configured alarm temperature and time conditions.
What is the alarm condition of PolSENSE-G?
PolSENSE-G indicates exposure below −0.5°C / +31.1°F for more than 60 minutes.
What is the alarm condition of PolSENSE-O?
PolSENSE-O indicates exposure below 0°C / +32°F for more than 10 minutes.
What is the alarm condition of PolSENSE-Y?
PolSENSE-Y indicates exposure below 0°C / +32°F for more than 60 minutes.
Does PolSENSE require activation?
No. PolSENSE is always active and has no start function.
Does PolSENSE require calibration or maintenance?
PolSENSE is designed for operation without user calibration or maintenance.
How do I read the PolSENSE?
Before reading, place PolSENSE in an environment above freezing temperature for at least 2 minutes. Then observe the display and note the √ / × indication.
What if the display remains blank?
Expose PolSENSE again at room temperature and wait at least 2 minutes. If the display is still blank, check the expiry date.
Does PolSENSE measure product quality?
No. PolSENSE monitors temperature exposure, not product quality. Its purpose is to signal when product quality evaluation or testing may be required.
What is the protection class?
PolSENSE has an IP67 protection class.
What is the operating and shelf life?
The specified operating and shelf life is up to 5 years, with the expiry date printed on the label.
What battery does PolSENSE use?
PolSENSE uses a lithium coin cell CR2450 compliant with IATA DGR PI 970-II.
What are the dimensions and weight?
PolSENSE measures 55 × 40 × 13 mm and weighs 23 g.
Protect Your Cold Chain with PolSENSE
Reliable electronic freeze exposure monitoring for pharmaceuticals, vaccines, biologics, laboratory materials, food logistics and other temperature-sensitive products.