Description
【PRODUCT FUNCTION】The rain sensor triggers the switch through the expansion of the moisture discs, and clears the alarm through the drying shrinkage. These rain sensor cork washers are compatible with Rain Bird RSD, WR2 Wireless, WR2-48 Wireless, WR2-RFC Wireless, WR2-RFC-868 Wireless..【PRODUCT QUALITY】These replacement discs for the Rain Bird rain sensor(RSD, WR2 Wireless) are made of the high quality materials, with a sensitive expansion and contraction response. When your rain sensor round discs have turned black or lost their ability to shrink..【WHEN REPLACE】When your rain sensor is no longer accurate, or the rain light keeps on, indicating that its moisture discs have failed over time (3-5 years, depending on your region), and then need to replace the new cork discs.
