Waterproof probe designed for long-term immersion in water, delivering reliable measurements in submerged or damp environments. Wide voltage operation - 3.3 to 5.5 V supply range for flexible power from common microcontrollers and control boards. Stable excitation - The excitation source uses an AC signal that effectively prevents probe polarization, improving long-term measurement stability. Convenient signal output - Analog output 0 to 2.3 V, compatible with 5 V and 3.3 V control systems for straightforward interfacing with standard ADCs. Key benefits - Durable performance in wet conditions with a waterproof design. - Easy integration with existing 3.3 V or 5 V electronics. - Maintains accuracy over extended use thanks to AC excitation that reduces polarization effects. Applications - Submerged data logging in water tanks, ponds, aquariums, or filtration systems for continuous monitoring. - Sensor integration in underwater robotics or ROV payloads for submerged measurements. - Wet-environment process monitoring in industrial equipment, pumps, or cooling circuits.