SpotSee WarmMark QR Smart Time-Temperature Indicator

SpotSee is a Dallas, Texas based maker of condition sensors, indicators and monitoring solutions that detect temperature, impact, tilt, humidity and light exposure during transport. It reports more than 4,500 customers and partners in 62 countries, five facilities in Texas, Illinois, Mexico and the United Kingdom, and brands such as WarmMark, ColdMark, ShockWatch, ShockLog and TiltWatch built over four decades.

WarmMark QR, launched in January 2025, is a single-use, battery-free time-temperature visual indicator with a QR code. When a temperature threshold is exceeded, the indicator changes visibly; scanning it with almost any smartphone, without an app, uploads time, date, location and serial number to SpotSee Cloud for track and trace. Thresholds range from -18 °C to 37 °C with ±1 °C accuracy. Target users are pharmaceutical manufacturers and distributors, pharmacy and vaccine shippers, diagnostics, chemicals and temperature-sensitive food.

• Visual indicator: irreversible color change shows when a temperature threshold has been exceeded.
• QR smartphone scan: works with almost any smartphone and needs no app to upload data.
• SpotSee Cloud: stores excursion data with time, date, location and serial number for track and trace.
• Standard thresholds: nine single-window options from -18 °C to 37 °C.
• Accuracy and shelf life: ±1 °C accuracy and a 2-year shelf life.
• Wider portfolio: complements ColdMark, ColdSnap, MaxiLog data loggers and ShockWatch impact indicators.

• A pharmacy chain in Vietnam can place indicators on insulin and vaccine deliveries so stores scan and log any excursion on arrival.
• A diagnostics company can protect test kits and specimens shipped between labs and clinics.
• A frozen food distributor can give retailers a simple scan-based check before accepting deliveries.

• At a 1.49 USD MSRP in the US, the release states it is about 11 times cheaper than an average single-use PDF data logger.
• Battery-free, app-free scanning lets receivers record excursions in seconds with a regular smartphone.
• Cloud records with time, date, location and serial number give traceable evidence for accept or reject decisions.
• Made largely from sustainable and recyclable materials, reducing electronic waste compared with disposable loggers.

Last-mile delivery of medicines, vaccines, diagnostics and chilled food is growing, while full data loggers are too costly for every parcel. Low-cost connected indicators bridge the gap by giving per-package evidence at receipt. In Vietnam and Southeast Asia, pharmacy chains and e-commerce grocery delivery create demand for affordable temperature proof at the final handover.

SpotSee is headquartered in Dallas, Texas, USA, with five facilities in Texas, Illinois, Mexico and the United Kingdom, and reports more than 4,500 customers and partners in 62 countries. WarmMark QR is engineered in Dallas, Chicago and Wales. Its partner list includes Digi-Key Electronics, Mouser and IBM.