The series offers five models to suit a wide spectrum of applications: the Tlog 100 (internal temperature), Tlog 100E (external temperature probe), Tlog 100EC (ultra-low temperature for dry-ice and deep-frozen logistics), Tlog 100H (temperature and humidity) and Tlog 100EH (external temperature-and-humidity probe). This breadth allows users to standardise on one logger family while selecting the precise sensing capability needed - from standard chilled and frozen monitoring to demanding ultra-cold shipments such as certain vaccines and biologics that must travel at extremely low temperatures.

Built for reliable field use, the Tlog 100 Series features two anti-touch buttons that help prevent accidental start, stop or reset and protect the recorded data during transit. Configurable start and stop modes adapt to different operational workflows, while multiple alarm thresholds let users define several limits to catch a range of excursion conditions. Two storage modes - stop-when-full and cyclic overwrite - allow operators to choose between a complete fixed-window record and continuous capture of the most recent data over long deployments, ensuring the device fits both short trips and extended storage monitoring.

• Technically, the series is highly capable.
• Temperature coverage spans -30 C to +70 C internally, -40 C to +85 C with external probes, and an exceptional -85 C to +150 C on the EC ultra-low variant, while humidity is measured across 0 to 100 percent RH on the H and EH models.
• Accuracy reaches +/-0.3 C between -20 C and +40 C, with 0.1 C and 0.1 percent RH resolution, and the 32,000-point memory supports detailed or long-duration logging at intervals from 10 seconds to 24 hours.
• Power comes from a CR2450 3.0 V battery, the IP65 rating ensures dependable performance in humid and harsh environments, and the compact 115.5 x 47 x 16.2 mm housing fits easily within packaging and cabinets.

• Data access is effortless thanks to the integrated USB port and automatic PDF report generation.
• At the end of a deployment, the logger connects directly to a Windows PC or Mac and produces a clear PDF report - readable without installing software - documenting the full temperature and humidity profile, alarm events and summary statistics.
• These reports can be archived in quality systems, attached to shipping documentation or shared with customers and auditors, delivering instant, defensible proof of cold-chain compliance.
• Elitech's software provides further configuration and data-export capabilities for in-depth analysis.

The Tlog 100 Series is widely used across pharmaceutical and vaccine distribution, biologics and diagnostics, ultra-cold and dry-ice logistics, fresh and frozen food supply chains, dairy, seafood and produce, and humidity-sensitive products. By combining flexible alarms, tamper-resistant operation and instant documentation, it helps organisations meet Good Distribution Practice (GDP), HACCP and similar requirements, reduce spoilage and rejected loads, and reinforce customer and regulatory confidence.