
The Ryan® CR-1 is a low-cost, disposable strip-chart temperature recorder designed to monitor temperatures during the transport of perishable products. The device is highly durable, withstands harsh transport conditions, and provides a visual post-transit temperature chart for cold chain assessment.
| Specification / Item | Details |
| Temperature Range | Standard: –20 °F to +100 °F (–29 °C to +38 °C) • High Temp: +16 °F to +136 °F (–9 °C to +58 °C) |
| Operating Accuracy | ±2.0 °F (±1.1 °C) across full range |
| Recording Duration (Day Spans) | 10-Day • 20-Day • 40-Day • 75-Day • 90-Day (available in °F & °C) |
| Average Chart Resolution | 10-Day: 2.83 in/day • 20-Day: 3.08 in/day • 40-Day: 1.52 in/day • 75-Day: 0.95 in/day • 90-Day: 0.82 in/day |
| Power Supply / Shelf Life | 1.5V AA battery • 1-year shelf life from date of manufacture |
| Calibration | NIST traceable |
| Tamper-Proof Security Seal | Factory-applied tamper-evident seal |
| Shipment Notice Label | Waterproof two-piece label attached to CR-1 |
| Case Quantity | 40 units per case |
| Enclosure | ABS plastic housing |
| Weight | 7.38 oz (209.2 g) |
