Applications of Rain Sensors

User:JXCTUpload time:Feb 07 2023

The rain sensor is very useful

It is difficult to generate enthusiasm for water resource management. But if your sprinklers go off when it’s raining, you won’t believe how enthusiastic your neighbors are about your need to save water. Adding a rain sensor to your current irrigation system is probably the smartest water conservation move you can take. It saves water, saves money, and more importantly, keeps your neighbors cool.

rain  sensor
rain sensor

Low cost rain sensor

Due to the increased focus on water-saving products, manufacturers have created several new irrigation solutions to help your system achieve peak performance with a very low investment. Most rain sensors are relatively inexpensive to purchase. Each controller requires a sensor. These new products will help you save money, improve the health of your landscape and contribute to a better local environment. Rain sensors have been around for years, but recent advances in technology have created a wireless rain sensor that allows you to place the sensor in the best position to detect rain.

Rainfall Monitoring System
Rainfall Monitoring System

Easy to install

Rain sensors can be installed anywhere – on gutters, columns, walls or pipes. The rain sensor communicates with your system’s controller and is designed to override the cycling program, stopping the system during rain and keeping it off for a period of time after it rains. Irrigation will resume once the sensor dries out. The location of the sensor is important because installing the sensor in a sunny southern location will cause the sensor to dry out quickly. Conversely, installing in a shady north will cause the controller to be off for a longer period of time. Stay away from extremes when deciding where to install.

rain gauge
rain gauge


Rain sensors can be purchased almost anywhere irrigation products are sold. Some require a specific amount of rain before closing, so they can actually close when it rains. I prefer models that shut off immediately when rain is detected. A rain sensor is really one of the easiest water management improvements you can make to your home, plus, if you have smart controllers, remember that most of them also require a rain sensor. The controller is programmed to water a specific amount. If you need 0.25 inches of water today, but only 0.10 inches of rain, your sprinklers will activate. The controller may be right, but you will have a hard time explaining to your neighbors why you are right.