Soil Moisture Sensor RS485 PLAIN

Catnip ElectronicsSKU: EXP-R79-003

Sale price10,00 €

excl. VAT plus Versand

Only 3 units left

Manufacturer number: R79003
Customs tariff number: 85423190
Country of origin: CN

Fast shipping within 24 hours
Shipping from Germany
Encrypted payment


This particular version of the sensor is suited for more professional installations where long cable runs is a requirement. It adds a local voltage regulator to mitigate the voltage drop and RS485 transceiver to accommodate long wires, also reverse polarity and an additional ESD protection level is added.

This is the easiest and the most robust way to read soil moisture and temperature values into Raspberry Pi. You can find the tutorial here.


  • Capacitive soil moisture sensing
  • Temperature sensing
  • Good stability with temperature
  • Good stability with power variation
  • Suitable for long cable runs
  • Uses industrial Modbus protocol
  • Low current consumption in deep sleep mode - 11 uA

Technical Data:

  • Supply voltage: 5V
  • Bus can be run on both 3V and 5V
  • Default serial settings: 19200, 8-bit frame, no parity, 2 stop bits
  • Default Modbus address: 1
  • Current consumption: Active: 9 mA, Deep sleep: 11 uA

Encrypted payment

American Express Apple Pay Google Pay Maestro Mastercard PayPal Shop Pay Union Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Additional Information

Customs tariff number:

Country of origin:

That depends on where you are. After the order has been handed over to UPS, the delivery time in Germany is about 2-3 days, within Europe about 1 week.

We ship our items with our shipping partner UPS.

Customer Service

+49 (0)681 9659 0150

Contact us

contact form

You might also like
last seen