SpotSee® ColdMark Descending Temperature Indicators

Product Overview: SpotSee ColdMark Descending Temperature Indicators provide a quick, reliable way to detect freeze exposure in temperature-sensitive goods. Used worldwide in cold chain logistics, these irreversible indicators instantly reveal when a product has dropped below its safe temperature threshold, protecting quality and compliance.

ColdMark Descending Temperature Indicators

Instant freeze detection for critical shipments.

ColdMark Descending Temperature Indicators, manufactured by SpotSee, provide a clear, irreversible colour change when goods are exposed to temperatures below a specific threshold. These single-use devices are designed to monitor pharmaceuticals, biologics, chemicals, food, and other freeze-sensitive products during storage and transport.

SpotSee is a trusted partner brand, distributed in the UK and EU by Good Life Innovations Ltd.

• Instant visual alert – changes from clear to violet when freezing occurs.
• Multiple temperature options – common thresholds include −3 °C, 0 °C, 2 °C, 5 °C, and 10 °C.
• Simple, cost-effective solution – no training, batteries, or calibration required.
• Single-use reliability – permanent evidence of exposure; cannot be reset.
• Supports product quality & compliance – trusted across healthcare, chemical, and food industries.

Pack Options

• 10-pack variants (per threshold)
• 100-pack variants (per threshold)

Benefits & Usage

Benefits

• Provides clear, irreversible proof of freeze exposure.
• Helps prevent unsafe product use and reduces waste.
• Fast, easy interpretation (clear → violet).
• Cost-effective, single-use cold chain monitoring.

Usage

1. Select the correct ColdMark threshold for your product (−3 °C, 0 °C, 2 °C, 5 °C, 10 °C, etc.).
2. Remove the indicator from its protective packaging.
3. Affix the ColdMark directly to the product packaging, vial, or shipment container.
4. Store or transport as required — the indicator continuously monitors for freeze events.
5. Inspect on arrival or during storage:
   • Clear = Safe (no freeze exposure)
   • Violet = Compromised (product exposed to freezing temperatures)
6. Dispose after use — ColdMark is a single-use indicator providing permanent evidence of exposure.