Watermark Switch Units are designed to control irrigation controllers with sensor-port. Only if the soil is dryer than a threshold set by the user at the Watermark Switch Unit, an irrigation event is taking place. Prevents unnecessary irrigation events, saves water and energy.
The Watermark Switch Units are available in two series: Water Switch and Watermark Electronic Modules. Water Switch offer economic irrigation control based on one Watermark Sensor and are used in golf, lawn and garden applications, the Watermark Electronic Modules offer irrigation control based on the average reading of two Watermark Sensors, and are common in more complex systems.

Water Switch - the economic Solution

Watermark Water Switch

Both Water Switch Models are „Dry Contact Switch" units, and are connected to the Sensor-port of an Irrigation controller. The Waterswitch units check the soil moisture status independently every hour (WS) or every 5 minutes (WS-B) and switch the sensor – port according to soil moisture. Waterswitch units can be used with both types of Irrigation controllers, normally open and also normally closed contact models.

Technical Data

Irrigation decision: based on 1 Watermark Sensor
Moisture Thresholds: 4 Steps
(moist to dry)

Typical Applications

housegarden, golf, lawn and garden, public greens

 

WS - Water Switch:
SKU Name Price *  
WS Water Switch, 24V AC, incl. 1 WM Sensor 142,00 €
(168,98 €)
WS-B Water Switch, 9V DC, incl. Battery, 1 WM Sensor 160,00 €
(190,40 €)
All prices excl. shipping *

 

Watermark Electronic Module - the professional solution

Watermark WEM

Watermark Electronic Modules are available in three models. Models WEM-B and WEM-DC-T are „Dry Contact Switch" units, and are connected to the Sensor-port of an Irrigation controller. The models WEM-B and WEM-DC-T check the status of soil moisture independently every 5 minutes, and set the sensor – port according to soil moisture. These two Watermark Electronic Modules can be used with both types of Irrigation controllers, normally open and also normally closed contact models.

The Watermark Electronic Module model WEM is a „Common Interrupt" switch unit, and can switch a single valve or group of valves on a dedicated common. The unit reads itself only when powered (start time) and switches triac according to moisture in relation to switch position.

Watermark WEM-B

Technical Data

Irrigation decision: average of 2
Watermark Sensors
Moisture Thresholds: 9 / 11 Steps
(10 to 90 / 110 Centibar
soil water potential)

Typical Applications

trees and vines, professional growing, golf, lawn and garden, public greens

 

WEM - Watermark Electronic Module:
SKU Name Price *  
WEM Watermark Elektronic Module, 24V AC, incl. 2 WM Sensors 215,00 €
(255,85 €)
WEM-DC-T Watermark Elektronic Module with Timer, 24V AC, incl. 2 WM Sensors 215,00 €
(255,85 €)
WEM-B Watermark Elektronic Module, 9V DC, incl. Battery, 2 WM Sensors 215,00 €
(255,85 €)
All prices excl. shipping *