Ryan® EZT vs Ryan® CR-1: Choosing a Strip Chart Temperature Recorder for Perishable Export from Dubai
A **strip chart temperature recorder** gives the receiver a paper chart of the whole trip. There is no PC, no software and no download. For perishable loads leaving Dubai by reefer container, truck or sea freight, it is still the simplest temperature proof a receiving dock can check on the spot. Sensitech makes two Ryan® recorders for this job: the [Ryan® EZT](https://royalkana.com/product/ryan-ezt) and the lower-cost, single-use [Ryan® CR-1](https://royalkana.com/product/ryan-cr1). This guide compares them line by line so you can order the right one for each lane.
How a strip chart recorder works
The recorder ships pre-sealed from the factory. You start it, place it with the load, and it draws temperature on a paper chart for the length of the trip. At destination the receiver breaks the tamper-proof seal, opens the instrument and removes the chart. Because the record is on paper, it can be signed, filed with the delivery note and checked at the dock.
- **No software or USB reader** needed at destination
- **Tamper-proof security seal** shows the instrument was not opened in transit
- **Water-resistant Notice of Shipment** on the unit records date, order number, shipper, carrier, receiver and vessel
- **1.5-volt AA battery** with one year shelf life from date of purchase
Ryan® EZT at a glance
- Temperature range: standard -29°C to +38°C (-20°F to +100°F); high temp -9°C to +58°C (+16°F to +136°F)
- Accuracy ±1.1°C (±2.0°F) across the full range
- Chart day spans: 5, 10, 20, 40, 75, 90 and 120 days
- NIST® traceable calibration plus pre-shipment validation testing
- Three-part water-resistant Notice of Shipment
- Individual instrument tracking
The [Ryan® EZT](https://royalkana.com/product/ryan-ezt) suits lanes where a claim is possible and you want each instrument tracked and validation-tested before it ships. Sensitech lists expert testimony in claim situations as a standard service for the EZT. The 120-day chart also covers long sea-freight voyages and storage periods.
Ryan® CR-1 at a glance
- The same standard and high-temp ranges, with ±1.1°C (±2.0°F) accuracy
- Chart day spans: 10, 20, 40, 75 and 90 days
- NIST® traceable calibration
- Two-part water-resistant Notice of Shipment
- Single use, self-contained and shipped ready to start
The [Ryan® CR-1](https://royalkana.com/product/ryan-cr1) is Sensitech's most economical strip chart recorder. It suits high-volume perishable lanes where you need a chart in every load and the trip is 90 days or less.
Ryan EZT vs CR-1: which one to order
- **Trip longer than 90 days, or a 5-day chart for short hauls:** choose the [Ryan® EZT](https://royalkana.com/product/ryan-ezt)
- **Claim-sensitive cargo where you want instrument tracking and pre-shipment validation testing:** choose the Ryan® EZT
- **High-volume reefer loads at the lowest cost per trip:** choose the [Ryan® CR-1](https://royalkana.com/product/ryan-cr1)
- **Cargo that can sit above +38°C, such as ambient goods on Gulf summer routes:** order the high-temp chart version, which reads up to +58°C
When a digital data logger fits better
A paper chart shows the temperature trend, but it does not give you a downloadable data file. If your receiver or QA team needs an automatic PDF report with alarm summaries, use a USB/PDF logger such as the [TempTale® Ultra Fit](https://royalkana.com/product/temptale-ultra-fit) or the [TempChrome E-10](https://royalkana.com/product/tempchrome-e10). For a side-by-side of those two logger families, read [TempTale® vs TempChrome](https://royalkana.com/blog/temptale-vs-tempchrome-which-data-logger).
For fruit and vegetable loads where humidity matters as well, see our guide to [temperature and humidity monitoring for fresh produce](https://royalkana.com/blog/temperature-humidity-monitoring-fresh-produce-transit). For food safety records, see [HACCP temperature monitoring in the GCC](https://royalkana.com/blog/haccp-temperature-monitoring-food-safety-gcc).
Ordering Ryan® recorders from Dubai
Royal Kana General Trading LLC has been selling Sensitech monitoring products in the Middle East for 8 years. We ship Ryan® EZT and Ryan® CR-1 recorders from Dubai to exporters, cold stores and forwarders across the UAE, Saudi Arabia and the wider GCC, and on export lanes to India, Türkiye, Europe and the US. Tell us the lane, the trip length and your monthly volume, and we will quote the right chart span and temperature range. Our team takes calls 24/7 and can send a driver for urgent orders inside the UAE.
Request a quote on the [Ryan® EZT product page](https://royalkana.com/product/ryan-ezt) or the [Ryan® CR-1 product page](https://royalkana.com/product/ryan-cr1).
Need help with your cold chain setup? Contact Royal Kana.