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Soil Humidity Moisture Detection Sensor Module and Probe - LM393

The LM393 Soil Humidity Moistures Detection Sensor Module when placed in soil gives out a HIGH (H) / ON output signal when the soil is dry and when humid / wet a LOW (L) / OFF signal.


Availability: 104 in stock

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SKU PHI1071280 Category Tags , ,


The LM393 Soil Humidity Moistures Detection Sensor Module, when placed in soil, gives out a HIGH (H) / ON output signal when the soil is dry and when humid/wet a LOW (L) / OFF signal.
The sensor module is built around the LM393 comparator, with the control threshold value being able to be manually adjusted via built-in potentiometer.
This module is perfect for gardening and agriculture-related projects.



  • Operating voltage: 3.3V – 5V
  • Wide sensor area
  • High electric conduction performance
  • Anti-rust characteristics
  • Chipset: LM393
  • Board dimensions: 30mm x 15mm
  • Probe dimensions: 60mm x 20mm



  • 1 x LM393 Soil Humidity Moisture Sensor
  • 1 x Soil Probe
  • 1 x Set of Jumper Wires

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We ship Australia wide to all addresses, including PO Box, Parcel Locker, etc.

The following shipping options available are listed below:

Australian Orders

  • Standard Shipping – Free (low cost / small products) – Sent via standard Australia Post stamped mail, 3 – 7 business days delivery depending on location, minimal tracking.
  • Standard Shipping – Free (higher cost / larger products) – Sent via Australia Post Parcel Service or Courier Service, depending on location and mailing address, 2 – 5 business days delivery, with full tracking.
  • Express Post – $12.00 (Cost may be higher depending on product size) – Sent via Australia Post Express Service, 1 – 2 business days for metro orders, potentially longer for orders outside of metro zones, with full tracking.

Orders outside of metro orders can take 2+ days longer than the estimates stated above.

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International orders are shipped through Australia Post and Sendle courier service depending on the most economical at the time.

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More Information

If you would like more information regarding placing international orders, please view the faq page under the “Do you accept international orders?” section.

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