Compact Ultrasonic Level Detection Sensor

This compact ultrasonic liquid level sensor uses high-frequency sound pulses to determine liquid height without touching the fluid surface. Measuring 45 mm in diameter and 28 mm tall, it weighs around 65 g and is housed in durable plastic designed for indoor use in consumer appliances. It operates on a flexible DC supply between 10 V and 36 V and consumes under 15 mA on average. Designed specifically for integration into household devices, the DS1603NF V1.0 outputs a continuous analog voltage that scales linearly with measured distance — supporting straightforward calibration and reliable performance in varying ambient temperatures typical of UK kitchens and bathrooms.