30 Day Display With External Probe

Note: USB interface cradle is required to operate the TREL30-16. (Purchased separately)

Note: Ultra Low External Probe is required to operate the TREL30-16. (Purchased separately)

Available on backorder


The LogTag® TREL30-16 Temperature Recorder measures and stores up to 15,900 temperature readings over a -90°C to +40°C (-130°F to +104°F) measurement range from associated interchangeable LogTag ST10 remote probe temperature sensor (available in lengths up to 3 metres (9’10”).

The display is designed to show ‘at a glance’ if temperature excursions have occurred during the current day and up to the previous 29 days. The display also shows the current temperature reading, the current time, recording status and battery status.

The alarm is triggered if temperature readings are outside pre-set alarm limits. The status indicator changes from a ✓ to a ✗ and, if configured, the audible alarm will sound. The day marker will also appear if not already present.

The alarm status indicator and audible alarm can be easily cleared, but the day marker remains to ensure a visible record of excursions is shown on the display. A simplified alarm clearance, stop & start procedure is available as an option.

Details of any excursions in the preceding 30 days can be checked directly by inspecting the statistics history on the recorder’s display or in more detail by downloading the logged data via a standard LogTag Interface cradle to LogTag Analyzer operating software.


  • Built-in audible alarm.
  • New, easy to read LCD display with 30 day summary in calendar format.
  • Up to 15,900 recordings – Enough memory for 66 days at 6 minute logging.
  • Auto-pause function – unplugging the external probe automatically suspends alarm & statistics processing
  • Record inspections at the push of a button.
  • Interchangeable External Probe with high quality gold plated connector.
  • Comprehensive customisation options including alarm settings, sample interval and trip duration


Part Order Code TREL30-16 (Replaceable Battery).
External Temperature Sensor Measurement Range -90 °C to +40 °C
Operating Temperature Range -30 °C to +60 °C
Storage Temperature Range -10 °C to +40 °C
Rated Temperature
Reading Accuracy
Better than ±0.5 °C for -20 °C to +10 °C
Better than ±0.7 °C for -50 °C to -20 °C and +10 °C to +30 °C
Better than ±1 °C for -80 °C to -50 °C
Better than ±1,8 °C for -90 °C to -80 °C
Actual performance is typically much better than the rated values.
Accuracy figures can be improved by recalibration.
Rated Temperature
Reading Resolution
Less than 0.1 °C for -80 °C to 0.0 °C,
Less than 0.2 °C for 0.0 °C to +18 °C,
Less than 0.3 °C for +18 °C to +30 °C,
Less than 0.5 °C for +30 °C to +40 °C
Please see the Rated Native Resolution chart above.
LogTag Analyzer® currently displays to one decimal place of °C or °F. The native resolution is what is stored in the LogTag®
Recording Capacity 15,905 temperature readings.
66 days @ 6 min logging
Day summary statistics memory (for display on LCD): up for 30 days of Max/Min/duration and alarm trigger statistics.
Sampling Interval Configurable from 30 seconds to hourly
Logging Start Options Push button start or specific date & time. Optional start delay of up to 18hours.
Recording Indication State indicator “REC”
Download Time Typically less than 10 seconds for full memory (15,905 readings), depending on computer or readout device used.
Environmental IP 61 (when vertically mounted or hung).
Power Source 3 V CR2032 (LiMnO2) coin cell battery, user replaceable
Battery Life Typically 1 year of operation.
NOTE: Typical battery life assumes 6 minute logging, day statistics are 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 ±25 ppm @ 25 °C (equivalent to 2.5 seconds/day).
Rated temperature coefficient is -0.034 ±0.006 ppm/ °C (I.e typically +/- 0.00294 seconds/day/°C)
Standard External Probe
Cable Lengths
Standard: 0.5 m (19 ””).
Extended: 3 m (9’10 ”) (recommended maximum)
Remote External Probe Type PTFE (FDA food contact rated) coaxial.
Size 93 mm (H) x 54.5 mm (W) x 8.6 mm (T)
Weight 41 g without External Probe.
Case Material Polycarbonate.
LogTag® Recorders reserves the right to change this product’s specifications without notice.


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