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This waterproof ultrasonic sensor offers PWM/UART/RS485/switch outputs for flexible integration into outdoor ranging and liquid‑level systems. With a 3–450cm range, 3cm blind zone, and ≈60° beam angle, this waterproof ultrasonic sensor delivers ±(1+S×0.3%)cm accuracy with optional temperature compensation. Wide 3.3–24V DC supply and low standby current (≤5mA) suit battery‑powered applications from -15~60°C. Weighing just 30g, this waterproof ultrasonic sensor is ideal for tank monitoring, outdoor distance measurement, and harsh‑environment automation.
Note:
A: The sensor detects flat objects from 3 cm up to 450 cm. The blind zone is only 3 cm – one of the shortest in its class, ideal for close‑range detection.
A: Accuracy depends on the compensation option. Without compensation: ±(1 + S×0.5%) cm; with built‑in compensation: ±(1 + S×0.3%) cm. For example, at 100 cm, compensated accuracy is ±1.3 cm – reliable even with temperature changes.
A: You can choose from PWM, UART (controlled or automatic output), switch signal, or RS485. This flexibility lets you connect to Arduino, PLC, or industrial bus systems without extra converters..
A: Two versions: 3.3–5 V DC or 5–24 V DC. Standby current is ≤5 mA, average ≤8 mA (3.3–5 V) or ≤15 mA (5–24 V), and peak current ≤40 mA or ≤75 mA. Low‑power design suits battery‑operated devices.
