LogTag SRIL-8

Ultra-low temperature single use data loggers with integrated sensor

Ultra-low temperature single use data loggers with integrated sensor


  • Single-trip dry ice Temperature Logger
  • 8000 readings. Rated for a typical trip of 2 weeks at dry ice temperatures
  • ‘OK’ & ‘ALERT’ Indicator with high and low customizable alarms
  • Rapid Download! Takes only seconds to download recordings
  • 'Pre-Start' logging - Logtag® can be configured to record even if it has not been started.
  • Re-calibration to achieve higher accuracy possible

The LogTag® Dry Ice “Probe-less” Temperature Recorder operates, measures and stores up to 8000 temperature readings in temperature environments ranging from -80 °C to +40 °C.

Intended for use in transit monitoring of articles stored in packaging incorporating dry ice cooling agents.

Available in single trip (SRIL-8) and multiple trip (TRIL-8) versions.

Using the LogTag® Interface and LogTag’s freely available companion software LogTag® Analyzer, the LogTag® Dry Ice Temperature Recorder is easily configured for recording conditions including delayed start, sampling interval, number of readings and configuration of conditions to activate the ALERT indicator.

The Red Alert indicator provides an immediate indication, without access to a PC, if any readings are outside the limits specified at the time the unit was configured. Green OK indicator provides immediate visual confirmation, without access to a PC, that the unit is operating.

Readings are downloaded using LogTag® Analyzer which provides facilities for charting, zooming, listing data statistics and allows exporting the data to other applications such as Excel.

The product incorporates an external temperature sensor uniquely arranged in a recess in the case. This arrangement protects the sensor from physical damage while retaining the faster response time normally associated with remote sensors.

Please note: An interface is required for configuration and reporting

Product Model SRIL-8 - Single use
Temperature Sensor Measurement range -80 °C to +40 °C (-112 °F to +104 °F)
Recorder operating temperature range -80 °C to +40 °C (-112 °F to +104 °F)
Storage Temperature Range -20 °C to +40 °C (-4 °F to +104 °F)
Rated Temperature reading accuracy Better than ±1 °C (±1.8 °F) for -30 °C to +20 °C (-22 °F to +68 °F). Better than ±1.2 °C (±2.1 °F) for -45 °C to -30 °C (-49 °F to -22 °F) and +20 °C to +40 °C (+68 °F to +104 °F). Better than ±1.7 °C (±3.1 °F) for -80 °C to -45 °C (-112 °F to -49 °F). 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 (0.2 °F) for -80 °C to 0.0 °C (-112 °F to +32 °F), Less than 0.2 °C (0.4 °F) for 0.0 °C to +20°C (+32°F to +68°F), Less than 0.5 °C (0.9 °F) for +20 °C to +40 °C (+68 °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®
Sensor Reaction Time Typically less than 5 minutes (T90) in moving air (1 m/s)
Recording Capacity 8031 temperature readings. 53 days @ 10min logging, 80 days @ 15min logging
Download Time Typically less than 5 seconds for full memory (8031 readings), depending on computer or readout device used
Environmental IP65 (roughly equivalent to NEMA 4)
Power source 3.6V low temperature chemistry Lithium Battery (Fixed)
Battery Life Up to 12 months of storage life before ‘start’ (if it is hibernation mode). Single use version rated for a typical trip of 2 weeks duration at dry ice temperatures.
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).
Weight 33 g
Sampling Interval Configurable from 1 minute to several hours
Logging Start Options Push button start or specific date & time
Recording Indication Flashing ‘OK’ indicator / flashing ‘ALERT’ indicator
Case Material Polycarbonate.

EN 12830:2018 - Temperature recorders for the transport, storage and distribution of temperature sensitive goods - Test, performance, suitability

Wall Mount Bracket WMB-01
Wall Mount Bracket WMB-01

For all current LogTag® models excluding indicators and UTRED30/UTREL30 loggers


LogTag® LTI-HID Desktop USB Interface Cradle