Tamper-resistant, simple-to-operate, single-use, reliable, battery-powered chart recorder generates a permanent paper strip chart data record of temperature conditions and time duration for a period of 10 days or less

Each unit has a tamper-evident seal with a bar code and serial number. Requires no pre-conditioning of the indicator, product, or package, and provides visible start-up verification, Hazard Analysis Critical Control Points (HACCP) documentation, and NIST traceable calibration (±1°C).