MaxBotix MB7374 HRXL-MaxSonar-WRST7 Ultrasonic Distance Sensor Module

The MB7374 provides three simultaneous output formats: a pulse width proportional to distance, an analog voltage output, and a digital serial output configurable for either RS232 or TTL logic levels. This allows direct compatibility with most microcontrollers, ADCs, and industrial PLCs without additional interface circuitry.

The sensor can detect objects as close as 1 mm, but the valid ranging starts at 50 cm. Objects detected between 1 mm and 50 cm are typically reported as a fixed distance of 50 cm. For precise measurements below 50 cm, a different sensor model from the MaxBotix lineup should be considered.

Yes, the MB7374 features an IP67-rated enclosure, making it dust-tight and capable of withstanding temporary immersion in water up to 1 meter for 30 minutes. This makes it ideal for outdoor applications like weather stations, agricultural monitoring, or exterior robotic sensing.

The sensor is factory calibrated and ready for use. It includes internal speed-of-sound temperature compensation to maintain accuracy across varying ambient temperatures. For ultimate precision, it also supports an optional external temperature sensor input for advanced compensation.

The MB7374 is designed for low-voltage operation. Please consult the official MaxBotix datasheet for the specific voltage range (typically between 3.0V and 5.5V). It is compatible with common 3.3V and 5V microcontroller systems like Arduino and Raspberry Pi.