Water Level Sensor | 7-Color Backlit Display | 52mm Gauge for 12V/24V

This 52mm water level gauge comes with a 0-190 ohm level sensor. It gives an accurate reading of fluid in your tank. The gauge shows your water or fuel supply clearly. This helps you avoid running out unexpectedly. Features and Benefits - Complete kit with gauge and sender - Includes a matching 0-190 ohm water level sensor. This ensures compatibility and accuracy. - 7-color selectable LED backlight - Customize the display. Match it to your boat or vehicle's existing instrument panel. - IP67 waterproof construction - The gauge is sealed against dust and water. It works well for marine use or open-cockpit vehicles. - 12V and 24V system compatibility - Works with many cars, trucks, RVs, and boats. No voltage converter is needed. Applications - Marine Vessels - Put this boat water level gauge in your console. Monitor the freshwater or holding tank on your marine yacht. - RVs and Campervans - Install this water tank meter indicator in your dashboard. Keep track of your freshwater supply on long trips. - Custom Automotive Builds - Add a clean-looking gauge to your off-road or project car. Monitor an auxiliary water or fuel tank. Mechanical / Float Sensors This 52mm gauge operates with a water level sensor, offering a 7-color backlit display and 12V/24V operating voltage. Mechanical or float sensors typically work by using a float that rises and falls with the water level. This movement then actuates a switch, such as a magnetic switch or a reed switch, to indicate the level. The switch can be configured as an 'on' or 'off' signal, or to provide a continuous resistance output, like the 0-190 Ohm range of this water level sensor. These sensors are a common choice for their simplicity and reliability in various applications. Ultrasonic Sensors (Non-Contact) Ultrasonic sensors are a non-contact method of measuring water levels. They emit sound waves which then bounce off the water's surface and return to the sensor. The time it takes for the sound to travel and return is used to calculate the distance to the water, and thus the level. While this 52mm gauge is designed for a water level sensor, it does not specify an ultrasonic type. Ultrasonic sensors are often used where contact with the liquid is undesirable, or where there is a risk of fouling. They are typically powered by DC voltages, often 12V or 24V, matching the operating voltage of this gauge. Submersible Hydrostatic Pressure Sensors Submersible hydrostatic pressure sensors work by measuring the pressure exerted by the column of water above them. As the water level rises, the pressure increases, and the sensor converts this pressure into an electrical signal. This 52mm gauge is compatible with a water level sensor, and a hydrostatic sensor would provide a resistance range, such as the 0-190 Ohm specified. These sensors are often IP67 waterproof rated, like this product, making them suitable for continuous immersion in applications like boats and cars. They often use a core cable to transmit the signal back to the display. Capacitive Sensors Capacitive sensors detect changes in capacitance caused by the presence of water. As the water level changes, the capacitance between a probe and a reference point varies. This change is then converted into a signal that can be displayed on a gauge, such as this 52mm unit with its 7-color backlit display. While this product works with a water level sensor, the specific type of sensor is not detailed. Capacitive sensors are known for their accuracy and are often used when a non-contact measurement from outside a non-metallic tank is required, or with a probe directly in the liquid. Optical Sensors Optical sensors for water levels operate by detecting the presence or absence of water using light. They typically use an infrared LED and a phototransistor. When the sensor tip is submerged in water, the light is refracted away from the receiver, indicating the presence of liquid. When the tip is exposed to air, the light is reflected back to the receiver. This 52mm gauge, with its 12V/24V operating voltage, is designed for a water level sensor, but the specific sensing technology is not specified. Optical sensors can be compact and are often used for point-level detection, such as high or low alarms.