Simple construction with reliable performance. The product outputs a stable and reliable switch control signal for high or low voltage. The reserve tank can be moved when installing this model. Sturdy design requires no maintenance. The product is designed for long-term use with minimal need for maintenance or repair during operation. Easy installation and convenient adjustment. The liquid level control prism can be freely adjusted by moving the locating piece up and down. Installation is straightforward with simple mounting. Application: Water fountain, water dispenser, water cooler, air cooler, dehumidifier, coffee machine, coffee maker, water heater, water boiler, hydroponic system, air conditioner, humidifier, bathroom equipment, vending machine, oil tank, and chemical liquid level control. Widely used in motor vehicles, industrial equipment, agricultural equipment, and household appliances. Terminal Model: ZH1.5 - 3PIN White Supply Voltage: 3.3V Note: Product appearance and printed text may vary slightly between batches, but this does not affect functionality. Color: As shown Material: ABS Package Contents: 2 x Water level sensor Package includes only the items listed above; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed: +/- 1-3 cm.