FW-WL-BT is a wireless on-the-floor leakage sensor with a built-in temperature sensor. It works over Bluetooth and is powered by a CR2450 battery, so no wires are needed. It looks the same as [[FW-WL.A|FW-WL]]. | FW-WL-BT is a wireless on-the-floor leakage sensor with a built-in temperature sensor. It works over Bluetooth and is powered by a CR2450 battery, so no wires are needed. It looks the same as [[FW-WL.A|FW-WL]]. |