Rain sensor RainPoint Rain Sensor model ICS044L for garden irrigation systems

RainPoint Rain Sensor model ICS044L is a wired rain detection device for garden irrigation systems that pauses watering when it senses precipitation and resumes automatically after drying. The sensor uses hygroscopic discs to detect rainfall, offers adjustable rainfall sensitivity, and connects to standard irrigation controllers via a 5 m cable for flexible placement.

Advantages

The sensor prevents unnecessary watering during rain, reducing water consumption and protecting plants from overwatering. Adjustable sensitivity and a ventilation ring for drying time allow you to fine-tune when the irrigation controller is paused and how quickly watering resumes. The unit is compatible with common SEN or COM inputs and comes with mounting hardware for straightforward installation.

Suitable for

• Private garden irrigation systems
• Small commercial landscapes and flower beds
• Irrigation controllers with SEN or COM input

When it may not be suitable

The wired sensor requires a controller with an available SEN or COM input and a nearby connection point; it is not suitable where only wireless sensors are supported. In locations with extreme dust or debris exposure, the hygroscopic discs may require occasional inspection to ensure reliable operation.

Key specifications

• Cable length: 5 m
• Adjustable rain sensitivity: 3 mm / 6 mm / 13 mm / 19 mm
• Drying time adjustment: ventilation ring
• Detection method: hygroscopic discs
• Compatibility: controllers with SEN or COM input

How to use

Mount the RainPoint ICS044L in a representative outdoor location using the supplied bracket and screws, route the 5 m cable to the irrigation controller and connect to the controller’s SEN or COM input according to the controller manual. Set the desired rainfall sensitivity level and adjust the ventilation ring to control how quickly the discs dry and return the system to normal watering. Replace the hygroscopic discs if performance degrades over time.

What to consider before purchase

• Ensure your irrigation controller has an available SEN or COM input.
• Confirm a 5 m cable is sufficient to reach the chosen mounting location.
• Plan for occasional visual checks of the hygroscopic discs in dusty or debris-prone areas.

Usage recommendations

Set a lower sensitivity threshold (3–6 mm) for delicate plants that must avoid even light rain, and use a higher threshold (13–19 mm) where brief light showers should not interrupt scheduled watering. Adjust the ventilation ring to match local drying conditions so the system resumes watering at an appropriate time.