Product Description Two RCWL-1670 waterproof split-type ultrasonic ranging modules, measuring distance 2cm-400cm, suitable for water level measurement. Made with high-quality materials, quality is guaranteed. Typical applications: obstacle avoidance for outdoor robots, liquid level measurement, water level measurement, trash can detection, and other distance measurement applications. This module is waterproof and dustproof, suitable for humid and harsh measurement environments. The module has ultra-low standby power consumption, suitable for battery-powered applications. The RCWL-1670 is a waterproof split-type ultrasonic ranging module with a measuring distance of 2cm-400cm, operating on a wide voltage range of 3-5V, and extremely low standby power consumption (1.5uA at 3.3V, 3.5uA at 5V). This module includes a split-type waterproof ultrasonic sensor and a control circuit. The external control software is compatible with the HC-SR04 module. Operating Voltage: 3-5V Operating Current: 6mA Standby Current: 3.5μA (5V, 1.5μA, 3.3V) Software Compatibility: HC-SR042CM Dead Zone, Typical Maximum Distance 4m Measurement Cycle: 50ms Color: As shown in the picture Material: PCB Package Contents: 2 x Acoustic Ranging Modules