The best single-use data logger for a shipment depends on its expected transit time, temperature range, reporting needs, and preferred temperature units. Frigga U1 suits longer trips with high recording capacity, while Deltatrak offers a compact option for trips up to 85 days with reports in Fahrenheit and Celsius. Tzone is a straightforward choice for Celsius-only monitoring, and the Elitech model adds summarized temperature statistics. Compare the listed limits and features before selecting a logger for a specific cold-chain route.
| Product | Best For | Notable Feature |
|---|---|---|
| Frigga U1 | Long shipments | 28,800 data points; up to 200-day battery life |
| Deltatrak | Trips up to 85 days | PDF and CSV reports in °F and °C |
| Tzone | Basic Celsius monitoring | Up to 10,000 points; automatic PDF report |
| Elitech TinyUSB | Compact shipment monitoring | Temperature statistics and graph |
| Frigga U2 | Trips up to 100 days | 14,400 data points; LED alarm |
Frigga U1 200-Day Temperature Logger
Best for: Longer cold-chain shipments that need substantial data storage. This 10-pack logger stores up to 28,800 readings and offers a stated battery life of up to 200 days. Its measurement range is -30°C to 70°C, with stated accuracy of ±0.5°C from -20°C to 40°C and ±1°C elsewhere in the range.
After the trip, connect the logger to a computer’s USB port to retrieve PDF and CSV reports without installing drivers or software. The default interval is 10 minutes and can be configured from 10 seconds to 24 hours using Frigga Data Center software. A 30-minute delayed start and LED alarm indicators are also listed.
Limitation: The current version displays Celsius only. Choose another model if shipment staff need the logger’s display or report in Fahrenheit.
Deltatrak 85-Day USB Logger
Best for: Shipments lasting up to 85 days where teams want a simple USB reporting workflow. The compact, single-use logger has a built-in USB connector, so no separate reader is needed. Its onboard software generates PDF and CSV reports in both Fahrenheit and Celsius, and the listing says no software is required to download the data.
Deltatrak’s listed Shadow Log feature is intended to preserve trip data. The one-model-for-any-trip-duration design may be useful for operations handling shipments with varied schedules within the stated 85-day limit.
Limitation: The supplied product details do not state a measurement range, accuracy, or recording capacity. Confirm those specifications meet the shipment’s monitoring requirements before choosing it.
Tzone USB Logger With PDF Reports
Best for: Buyers who need a simple, single-use logger with automatic PDF reporting and a stated battery life of up to one year. It records up to 10,000 points and measures from -30°C to 60°C. Stated accuracy is ±0.5°C from -20°C to 40°C and ±1.0°C elsewhere in its range.
The logger starts by holding its button for three seconds and has a 30-minute delayed start. Its LED indicates whether readings are within the alarm range; the listed default thresholds are above 8°C and below 2°C. A calibration certificate is included according to the product details.
Limitation: This version supports Celsius only. Its 10,000-point capacity is lower than the Frigga U1’s listed 28,800 points.
Elitech TinyUSB 90-Day Logger
Best for: Buyers prioritizing a small logger for shipments such as vaccines, blood products, pharmaceuticals, and perishables. The product name specifies a 90-day single-use trip logger and a -10°C to 40°C range. The listing describes it as portable and suitable for air-transport monitoring.
Its LCD alarm indicator helps identify temperature abnormalities. The reported output includes over-temperature time statistics, maximum, minimum, and average values, MKT value, and a temperature graph. Those summaries can make shipment review more informative than a simple list of readings.
Limitation: The provided details do not specify measurement accuracy, data-point capacity, or whether the report includes PDF and CSV formats. Check these details if they are required for your recordkeeping process.
Frigga U2 100-Day Temperature Logger
Best for: Shipments needing a stated 100-day monitoring period and USB-generated reports. The Frigga U2 stores up to 14,400 points, measures from -30°C to 70°C, and has listed accuracy of ±0.5°C from -20°C to 40°C and ±1°C elsewhere. Its LED alarm signals when temperature exceeds a preset threshold.
Users start and stop recording with a button, then plug the logger into a computer to generate a PDF report without software or driver installation. The product name also identifies CSV reporting. Choose it over the U1 if its 100-day period and lower listed data capacity fit the shipment’s needs.
Limitation: The current version supports Celsius only. The listing warns that connecting it to USB stops recording and it cannot be turned on again, so export the report after the trip ends.
Buying Guide: How To Choose A Single-Use Data Logger
How long does the logger need to record?
Match the stated monitoring period to the full shipment schedule, including potential delays. The listed options include Deltatrak at up to 85 days, Elitech at 90 days, Frigga U2 at 100 days, and Frigga U1 with a stated 200-day battery life. Battery life and trip duration are not necessarily interchangeable specifications, so check the manufacturer’s details for the exact operating limit.
What temperature range and accuracy are required?
Compare the logger’s stated measurement range with the expected conditions, then check accuracy around the critical temperatures. Frigga U1 and U2 list a range of -30°C to 70°C. Tzone lists -30°C to 60°C. Elitech lists -10°C to 40°C. Deltatrak’s supplied product details do not include its range or accuracy.
Do you need Fahrenheit, Celsius, or both?
Deltatrak reports in both Fahrenheit and Celsius. The current Frigga U1 and U2 versions and the Tzone version support Celsius only, according to their listings. Confirm display and report units before ordering for a team or recipient that relies on Fahrenheit.
How will you retrieve and review shipment data?
USB models can simplify post-trip review by producing reports through a computer connection. Compare supported formats, whether software is needed, and the summaries provided. Frigga U1 and U2 list PDF and CSV reports; Deltatrak lists both formats; Tzone lists automatic PDF reporting; Elitech lists temperature statistics and a graph.
Frequently Asked Questions
What is a single-use data logger?
It is a device intended to record conditions during a particular shipment or trip. The listed products monitor temperature and provide recorded data for review after use.
Do these loggers require a separate reader?
The listed models use USB connections for report retrieval. Deltatrak specifically states that its built-in USB connector does not require a special reading device.
Can a single-use logger provide an alarm?
Several listed models include LED or LCD alarm indicators. Check each model’s stated alarm behavior and thresholds before relying on it for a particular temperature range.
Should the logger be started before packing?
Follow the product’s instructions for starting and placement. Frigga U1 and Tzone list a 30-minute delayed start, which should be considered when planning shipment monitoring.