Bluetooth Water Sensor System

I'm looking for a device that can detect water and send a signal to another device to activate a motor.

Requirements:
- A water sensor (preferably a float switch, conductive sensor, or ultrasonic sensor)
- Wireless signal transmission (Bluetooth preferred)
- Signal to activate a motor

Ideal skills and experience:
- Experience with water sensing technologies
- Proficiency in Bluetooth communication
- Knowledge of motor activation mechanisms
- Ability to design and implement a wireless control system

Please provide a brief overview of your approach and relevant experience.