Watermark 200SS, Sensor de humedad del suelo, matriz granular sin mantenimiento

WATERMARK Soil Moisture Sensors

• Model 200SS-5 with 1.5m cable
• Model 200SS-15 with 4.5m cable
• Model 200SS-26 with 8.0m cable

Electrical sensing device that is buried in the active root zone to measure soil water tension.

The sensor consists of corrosion-resistant electrodes embedded inside a specialized granular matrix.

The water in the soil exchanges with the sensor’s matrix, providing a measure in centibars (or kPa) of soil water tension equivalent to the readings of an SR or LT tensiometer.

The WATERMARK is designed to be a permanent sensor, left in the soil to be read by data loggers or handheld readers. We offer our own reading solutions, but the sensor is also widely used by industry partners in their own applications.

Installation

https://www.youtube.com/watch?v=uZw-cKPheMk

Features:

• 0-200 Centibar Range
• Stainless steel case
• Do not dissolve in soil
• Not affected by freezing temperatures
• Internal compensation for commonly encountered salinity levels
• Low cost
• Easy to use
• Maintenance free

Integration Options

WATERMARK sensors require a reading device specifically designed to read them. For other devices that can read standard analog sensors, we offer adapters to allow easy integration:

• 200SS-SDI Adapter SDI module for 3 WATERMARK moisture sensors and 1 soil temperature sensor 200TS
• 200SS-VA Adapter for 3 WATERMARK moisture sensors and outputs a standard 0-3 V analog signal

To directly integrate WATERMARK sensors into your device project, our integration guide covers best practices and includes an Arduino implementation example: