The FX51SEN is an advanced magnetic sensor (hall) capable of detecting magnets position and rotation.
Piezo Knock Sensor
The FX12-AIR is pressure sensor that can convert 0-1000mm of water in to .2 to 10V voltage output.
The FX12-Knock is analog amplifier for vibration sensors. It will amplify small signals from piezo and other low level sensors for reading by a 0-10V input.
The FX51D is a reed switch replacement with an intelligent controller.
Magnet Sensor kit; detect the placement of 4 objects. Connects with simple jumpers. One button programming for the entire chain!
Eight (8) Piano Keyboard spaced FX51 magnetic sensors on a single board