LogTag UTREL30-16

Dual channel 30 day display logger

Dual channel 30 day display logger


  • Read Current temperature and latest Min-Max temperature at a glance.
  • Check and reset Min-Max temperature reading at any time.
  • Audible alarm and flashing red LED signals a temperature alarm.
  • View alarm status for up to 30 days at a glance.
  • Measure and store up 32,000 time/temperature readings (16,000 per channel) – enough for 67 days at 6 minute logging.
  • Two socket external probe with auto channel swap function.

The LogTag® UTREL30-16 DUAL is a 30 day logger with display, the recommended vaccine monitoring logger. This Temperature Recorder measures and stores up to 30,000 temperature readings (16,000 per channel) in a measuring range from -90 °C to +40 °C via the external sensor. Enough for 67 days at 6 minute logging.

The display is designed to show ‘at a glance’ if temperature excursions have occurred during the current day and up to the previous 30 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 X,the red LED is flashing 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 excursion 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 micro-USB cable to LogTag® Analyzer operating software.


Product Model UTREL30-16
Recorder operating temperature range -30 °C to +60 °C (-22 °F to +140 °F). 0 – 99 % RH (non-condensing)
Storage Temperature Range 0 °C to +40 °C (32 °F to +104 °F)
Rated Temperature reading accuracy Better than ±0.5 °C for -20 °C to +10 °C (-4 °F to 50 °F) Better than ±0.7 °C for -50 °C to -20 °C (-58 °F to -4 °F) and +10 °C to +30 °C (50 °F to 86 °F) Better than ±1 °C for -80 °C to -50 °C (-112 °F to -58 °F ) and +30 °C to +40 °C (86 °F to 104 °F) Better than ±1.8 °C for -90 °C to -80 °C (-130 °F to -112 °F)
Rated Temperature Reading Resolution Better than 0.1 °C (0.2 °F) for measurements -80 °C to 10 °C (-112 °F to 50 °F) Better than 0.2 °C (0.4 °F) for measurements 10 °C to 20 °C (50 °F to 68 °F) and -90 °C to -80 °C (-130 °F to -112 °F) Better than 0.3 °C (0.5 °F) for measurements 20 °C to 30 °C (68 °F to 86 °F) Better than 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®.
Sensor Reaction Time Typically less than 2 minutes(T90) in moving air (1m/s) for ST10S type probe.
Recording Capacity 32,000 total log memory. Provides 16,000 temperature readings per channel. Day summary statistics memory (for display on LCD): up to 30 days of Min/Max/duration and alarm trigger statistics
Alarms Up to 6 individually configurable alarms for each channel. Possible to set alarms separately for Channel 1 and Channel 2
Download Time Typically with full memory (32,000 readings) in less than 20 seconds
Environmental IP61 (when vertically mounted or hung with USB dust-cap in place)
Power source 5V via micro USB socket or 2 x 1.5V AAA batteries. CR2032 LiMnO2 coin cell (backup logging function only)
Battery Life AAA battery up to 12 months - if unit is operated without power supply
Real Time Clock Built-in real time clock. Typical 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)
Connection Interface USB 2.0 / Micro USB Socket
Size 141 mm(H) x 72 mm(W) x 18 mm(T)
Weight 156 g with AAA batteries, (132g - excluding probe and AAA batteries)
Sampling Interval Configurable from 30 seconds to 18 hours. (Typically 5 minute logging)
Logging Start Options Push button start (with configurable start delay from 1 minute to 72 hours) or specific date & time
Case Material Polycarbonate
External Temperature Sensor Measurement Range -90 °C to +40 °C (-130 °F to +104 °F)
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
Probe Connectivity Up to 2
Probe Compatibility All ST10 precision thermistor external probes can be interchangeably connected to the UTREL30-16. Please refer to the Accessories section for compatible External Probes. Different probe models can be used for each channel. Not compatible with ST100 sensors
Wall Mount Bracket WMB-02
Wall Mount Bracket WMB-02

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