荷兰采购需求：电动割草机、漏水检测器、二氧化碳传感器、自动割草机、智能气象站、自动割草机

We are interested in installing a Salinity sensor for the Cascade tank of our Boiler system on board our vessels. Please recommend the most appropriate sensor along with its measurement range. In addition, we require an alarm feature to indicate salinity levels at 10 PPM and above. We would like pricing for two options: one with a local visual alarm and another with both audio and visual alarms, which should support remote monitoring as well.