<https://www.access-irrigation.co.uk/shop/irrigation-control-systems/controller-accessories/rain-sensor-for-heron-controller/>
<http://schema.org/description>
"Buy Rain Sensor for Heron Controller from Access Irrigation Components Store. It can be wired to Heron control panel to record rainfall in 1mm increments."
<https://www.access-irrigation.co.uk/shop/irrigation-control-systems/controller-accessories/rain-sensor-for-heron-controller/>