Buying Guide: Irrigation Sensors

Rain Sensor Guide
Ryan Imlach
19/02/2016

Irrigation Sensors are a great way to keep your water usage in check, especially if your garden is subject to inconsistent weather conditions. They range from simple rain sensors to comprehensive weather stations. Check out the information below to find the one that’ll suit you best:

Rain Sensors

There’s nothing worse than seeing a sprinkler system spraying water everywhere in the middle of a rainy day. So if you simply don’t want your system to come on when it’s wet, this is your option. A Rain Sensor typically shuts off watering depending on the set volume of rainfall that has been chosen to shut it off and won’t come on until it has dried out. Some have an instant shut-off feature which, if important to you, is good to look for.

Most Rain Sensors can be wired up to any branded controller but because some brands are configured as “Normally Open” and some “Normally Closed” we suggest not mixing brands to avoid any unnecessary complications come installation time.

Solar Sensors

This is the next level in watering efficiency. Not only will these sensors monitor for rainfall, but they will also analyse the sun’s rays and air temperature to keep your lawn & garden at peak performance with optimal watering. These sensors also provide instant shut-off at the sign of rain & automatically adjust programmed watering times depending on seasonal conditions.

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Soil Sensors

These are designed to detect the moisture level of the soil instead of how much rain is received. As soils absorb water differently, this is a good way to get an accurate reading on what’s happening underground.

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Wireless Sensors

A number of types of sensors come with wireless options. With a Receiver installed at the controller and a Transmitter located at the Sensor, they provide far more flexibility when it comes to working out a location for your sensor.

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