Take your sonar outside - great for all-weather robots! The XL-MaxSonar-WRMA1 ignores smaller targets and only reports the range to target with the largest acoustic return. This is our most advanced weather-resistant sensor designed for target detection and ranging outdoors or in tank or bin applications. https://elecena.pl/product/17498677/maxbotix-weather-resistant-ultrasonic-rangefinder 2021-04-06 https://elecena.pl/product/17498677/maxbotix-weather-resistant-ultrasonic-rangefinder 2022-04-29