Logtag TREX-8 External Probe Temperature Logger


LogTag TREX-8 is a credit card sized, external interchangeable temperature probe logger that can store up to 8000 data readings. The high-performance data logger has a measurement range of -40°C to +99°C. The logger has flashing OK LED light that indicates data recording and ALERT LED light that indicates the readings are above the preset limits.

Using the LogTag Interface cradle and companion software LogTag Analyser, this device can easily be configured for recording conditions including delayed start, sampling interval, number of readings and configuration of conditions to activate the ALERT indicator. The software allows for exporting of the downloaded data to Excel apart from providing the ability to view the data as a graph or as a table and also for statistics.

  • Temperature range -40°C … +99°C
  • Accuracy up to ±0.5°C
  • 8,000 logs
  • Date/Time start
  • Smallest sampling frequency 30 seconds
  • Up to 3 years typical battery operating life
  • Choice of 1.5m or 3.0m external probes with PTFE cable, SS316 tips (food rated) and gold plated connector
  • High-quality gold-plated remote sensor connector
  • Low cost, high performance, credit card sized case & thin enough to be mailed as “letter rate” basis
  • Alert indicator – indicates if readings are outside of preset limits. OK indicator indicates if still recording and if readings within configured limits
  • Inspection mark in log by push button
  • Push button logging start with optional delayed start or specific time & date start
  • Real time clock records time & temperature simultaneously
  • Easy to use freely available LogTag Analyser software that configures logger for recording and download data in few seconds for analysis Data can also be exported to other applications such as Excel

With recorder case sitting in environmental temperature between 0°C ~ 50°C the rated accuracy is :-±0.5°C for -10°C~ +40°C better than ±0.7°C for -10°C~ -30°C & +40°C~+60°C
better than ±0.8°C for -30°C~ -40°C & +60°C~+80°C
better than ±1.0°C for +80°C~+99°C
Battery life
2 ~ 3 years of normal use (based on 15 minute logging, download data monthly
8000 data points
Case Material
Download Time
Typically with full memory (8000 readings) in less than 5 secs depending on computer or readout device used.
Logging start options
Push button start, date/time start
Measurement Range
-40°C ~ +99°C
Operating range
-40°C ~ +85°C
Power source
3V Lithium battery
Recording indication
Flashing 'OK' indicator flashing 'Alert' indicator
Remote Sensor Cable Type
PTFE (FDA food contact rated) coaxial
< 0.1°C for -40°C ~ +40°C
< 0.2°C for +40°C ~+80°C
Sampling frequency
Adjustable, 30 sec to several hours
download data monthly Size 86 x 54.5 x 8.6mm
Standard remote sensor cable lengths
Standard: 1.5m (4’11”) Extended: 3 m (9’10”) (recommended maximum)

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