Magnetic sensor, the so-called kontaktrony used, such as, for example, to determine the position of doors or Windows.
The sensor allows you to control the water level in the tank. Consists of a float, which under the influence of increasing fluid volume rises, causing a short circuit of the reed switch. The length of the switch is 92 mm.
The sensor allows you to control the water level in the tank. Consists of a float, which, under the influence of a reduction of the volume of the fluid decreases, causing a short circuit of the reed switch.
Module SparkX Qwiic GOING MPU-9250 is 9-axis inertial navigation unit (IMU). It has the gyroscope's, accelerometer's and magnetometer's function. You can use it for making self-balancing robot or even the autopilot for the airplane/drone. It is fully compatible with Arduino.