

TREL30-16U is a specialized temperature data logger designed for long-term monitoring in cold storage environments, warehouses, refrigerators, freezers, and supply chain applications requiring strict temperature control. Equipped with high-precision temperature sensors and large storage capacity, it allows for recording temperature history over extended periods without frequent data downloads. A large LCD screen clearly displays current measurements, alarm status, and operational information, enabling easy on-site monitoring.
| Product Model | TREL30-16U (Replaceable Battery) |
| External Sensor Measurement Range | -90 °C to +40 °C (-130 °F to +104 °F) |
| Operating Temperature Range | -30 °C to +60 °C (-22 °F to +140 °F) |
| Storage Temperature Range | -10 °C to +40 °C (14 °F to +104 °F) |
| Rated Temperature Reading Accuracy | Better than ±0.5 °C (±0.9 °F) for -20 °C to +10 °C (-4 °F to +50 °F) Better than ±0.7 °C (±1.3 °F) for -50 °C to -20 °C (-58 °F to -4 °F) Better than ±0.7 °C (±1.3 °F) for +10 °C to +30 °C (+50 °F to +86 °F) Better than ±1.0 °C (±1.8 °F) for -80 °C to -50 °C (-112 °F to -58 °F) Better than ±1.0 °C (±1.8 °F) for +30 °C to +40 °C (+86 °F to +104 °F) Better than ±1.8 °C (±3.2 °F) for -90 °C to -80 °C (-130 °F to -112 °F) Actual performance is typically much better than the rated values. Accuracy figures can be improved by recalibration. |
| Rated Temperature Reading Resolution | 0.1 °C (0.2 °F) for measurements -80 °C to +10 °C (-112 °F to +50 °F) 0.2 °C (0.4 °F) for measurements -90 °C to -80 °C (-130 °F to -112 °F) 0.2 °C (0.4 °F) for measurements +10 °C to +20 °C (+50 °F to +68 °F) 0.3 °C (0.5 °F) for measurements +20 °C to +30 °C (+68 °F to +86 °F) 0.5 °C (0.9 °F) for measurements +30 °C to +40 °C (+86 °F to +104 °F) LogTag Analyzer® currently displays to one decimal place of °C or °F. The native resolution is what is stored in the LogTag®. |
| Recording Capacity | 17,526 temperature readings. 60 days @ 5min logging. Day summary statistics memory (for display on LCD): up for 60 days of Max/Min/duration and alarm trigger statistics |
| Sampling Interval | Configurable from 30 seconds to 18 hours |
| Logging Start Options | Push button start or specific date and time. Optional start delay of up to 18 hours |
| Recording Indication | State indicator “RECORDING” |
| Download Time | Typically less than 10 seconds for full memory (17,526 readings) using the USB connection, depending on computer |
| Environmental | IP61 (when vertically mounted or hung) |
| Power Source | 3V CR2032 LiMnO2 coin cell battery, user replaceable |
| Battery Life | 1 year storage, followed by 1 year of operation with normal use (6 minute logging, statistics reviewed on the display no more than once daily for no longer than 30 seconds each time, download data monthly) NOTE: Continual activation of the audible alarm will reduce the working life of the battery. When an alarm is triggered, the alarm should be cleared and reset as soon as possible. |
| Real Time Clock | Built-in real time clock Rated accuracy ±25ppm @ 25 °C (equivalent to 2.5 seconds/day) Rated temperature coefficient is -0.034 ±0.006ppm/°C (i.e. typically +/- 0.00294 seconds/day/°C). |
| Standard Remote Sensor Cable Length | Standard: 1.5m (4’11″) Extended: 3m (9’10″) (Recommended maximum) |
| Remote Sensor Cable Type | PTFE (FDA food contact rated), coaxial |
| Size | 93mm(H) x 54.5mm(W) x 8.6mm(T) |
| Weight | 43g without External Probe |
| Case Material | Polycarbonate |
Instructions for Using the TREL30-16U Device | |
English version | Vietnamese version |