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HortPlus MicroLoggers are small, cost-effective, robust and easy-to-use digital thermometers that measure and store time, temperature and humidity in their immediate environment. They're primarily used to monitor air and soil temperatures on orchards and vineyards, but they're also popular with research and education institutes.

MicroLoggers are also used for logging the temperature and humidity of products in storage or cold chain distribution. They can be used over and over again up to one million readings, and although their warranty is for one year, under normal operating conditions they can last for 5-10 years.

Their stainless-steel outer casing is highly resistant to environmental hazards such as dirt, light, shock and short periods of moisture. A plastic clip is available that can attach loggers to objects like containers, pallets and bags. And a waterproof capsule can be used if being exposed to wet environments. For outdoor use, our stevenson radiation screens provide protection from inaccurate readings through the effects of radiational heating.

Applications include:

  • Track temperatures of product in transit. Monitor the performance of your transport operators.
  • Cool chain and curing management.
  • Coolstore monitoring including kiwifruit storage. Compost temperature monitoring.
  • Growing Degree Days and Winter Chilling affecting crop and disease management.
  • Frost monitoring and management.
  • Soil temperature monitoring.
  • Anywhere you need a record of temperature to support claims or enhance management.
Download MicroLogger Spec Sheet Order from Online Catalogue
ModelTemperature RangeHumidity RangeTemperature AccuracyTemperature ResolutionHumidity ResolutionData Memory
Z-5°C to 26°CN/A±1°C0.125°CN/A2048 bytes
G-40°C to 85°CN/A±1°C0.5°CN/A2048 bytes
T-40°C to 85°CN/A±0.5°C (SC)0.5°C or 0.0625°CN/A8192 bytes
TH-20°C to 85°C0 to 100% RH±0.5°C0.5°C or 0.0625°C(0.6%RH) or (0.04%RH)8192 bytes

  • Log product temperature in cool storage
  • Cool chain and curing management
  • Measure GDD and chilling units
  • Frost logging and management
  • Soil and compost temperature monitoring
  • Record temperature as support for claims
  • Insurance for the reputation of your produce
  • Small and discrete at 6mm x 17mm
  • Fits inside bins, cartons, containers, pallet cards
  • Cost effective, robust and hard-wearing
  • Measure temperatures -40°C to 80°C
  • 5-10 year battery life
  • Can be set to +/- 0.1ºC or 0.5ºC increments
  • Traceability with unique registration number
  • Delay mission start
  • Set mission logging interval (1 to 255 minutes)
  • Stores from 2048 to 8192 readings in memory
  • Choose what to do when the memory is full, stop or rollover.
  • Automatically graphs the data or export to excel