-20°C
+8°C
+25°C
Irreversible Temperature Indicators for Cold Chain Monitoring
Immediate visual verification of temperature excursions, in three temperature ranges.
STRATUM ST-TI temperature indicators are single-use labels with an irreversible color-change indication designed to detect thermal breaches. They require no power and support rapid incident identification. The ST-TI range is available in three temperature configurations: ST-TI01 Frozen (-20°C), ST-TI02 Fresh (+8°C) and ST-TI03 Ambient (+25°C).
Visual temperature indicators for cold chain shipments
Temperature-sensitive goods can be exposed to temperature excursions during transport, handling and storage. ST-TI indicators provide an irreversible visual indication designed to detect these thermal breaches, without any power supply.
Each indicator is a single-use label with a continuous and irreversible display. It allows immediate visual verification of temperature conditions and helps teams identify incidents rapidly. Three ranges are available so the indicator threshold can be matched to the temperature requirements of the goods.
Three temperature ranges
The ST-TI series shares the same visual indication principle and is available with three different temperature thresholds.
ST-TI01
Frozen Range
Temperature threshold: -20°C
Readout duration: 8 hours
ST-TI02
Fresh Range
Temperature threshold: +8°C
Readout duration: 4 hours
ST-TI03
Ambient Range
Temperature threshold: +25°C
Readout duration: 12 hours
Key features
- Irreversible color-change indication: Designed to detect thermal breaches.
- Immediate visual verification: Temperature conditions can be checked at a glance.
- Rapid incident identification: Helps identify temperature excursions quickly.
- Continuous / irreversible display.
- No power required.
- Single use.
- Top-button activation.
- Temperature accuracy: ±1°C.
- Time accuracy: ±15%.
- Economical solution for visual temperature monitoring.
Understanding the indicator
Each ST-TI indicator is activated using its top button. The following terms describe how the indicator scale should be read.
- Temperature Threshold: The temperature at or above which the indicator records a temperature excursion.
- Stop Temperature: The lower temperature at which indicator progression stops.
- Readout Duration: The maximum cumulative excursion time represented by the indicator scale.
- Time Markers: Visual graduations showing the cumulative duration of temperature excursions.
Technical Specifications
| Specifications | ST-TI01 (Frozen) |
ST-TI02 (Fresh) |
ST-TI03 (Ambient) |
|---|---|---|---|
| Temperature Threshold | -20°C | +8°C | +25°C |
| Stop Temperature | -25°C | +6°C | +22°C |
| Readout Duration | 8 hours | 4 hours | 12 hours |
| Time Markers | 0.5 / 1 / 2 / 4 / 8 h | 2 / 4 h | 0.5 / 1 / 2 / 4 / 8 / 12 h |
| Temperature Accuracy | ±1°C | ±1°C | ±1°C |
| Time Accuracy | ±15% | ±15% | ±15% |
| Display | Continuous / Irreversible | Continuous / Irreversible | Continuous / Irreversible |
| Activation | Top button | Top button | Top button |
| Water Resistance | Non-immersible | Splash-proof | Non-immersible |
| Shelf Life | 2 years | Printed on packaging | 2 years |
Temperature indicators across cold chain operations
ST-TI temperature indicators can be used in cold chain operations where an immediate visual indication of temperature excursions is useful.
Typical sectors include food products, seafood, meat, flowers and horticulture, cold storage and temperature-controlled logistics. The appropriate range depends on the temperature requirements of the goods being shipped or stored.
Designed for professional cold chain requirements
The ST-TI range is presented with the following conformity references: REACH, FDA, ISO 9001 and RoHS.
For specific documentation or compliance requirements, contact STRATUM before deployment.
Cold chain monitoring with an international B2B approach
STRATUM Cold Chain Monitoring supports exporters, producers, cold storage operators and logistics professionals with monitoring solutions for temperature-sensitive shipments.
Based in Singapore and serving international markets, we focus on practical solutions, responsive commercial support and clear technical information.
Response within 12 business hours.
Personalized quotation within 24 hours.
FAQ
Are ST-TI temperature indicators reusable?
No. ST-TI temperature indicators are designed for single use.
Do ST-TI indicators require power?
No. ST-TI indicators require no power supply.
What temperature thresholds are available?
Three ranges are available: ST-TI01 Frozen Range with a -20°C threshold, ST-TI02 Fresh Range with a +8°C threshold and ST-TI03 Ambient Range with a +25°C threshold.
Is the indication irreversible?
Yes. The ST-TI display is continuous and irreversible.
What do the time markers represent?
Time markers are visual graduations showing the cumulative duration of temperature excursions. ST-TI01 has markers at 0.5, 1, 2, 4 and 8 hours, ST-TI02 at 2 and 4 hours, and ST-TI03 at 0.5, 1, 2, 4, 8 and 12 hours.
What is the stop temperature?
The stop temperature is the lower temperature at which indicator progression stops: -25°C for ST-TI01, +6°C for ST-TI02 and +22°C for ST-TI03.
How are ST-TI indicators activated?
ST-TI indicators are activated using the top button.
Need visual temperature indicators for your shipments?
Request pricing or samples, or discuss which ST-TI range suits your temperature requirements with STRATUM.