Hydros Skimmer Sensor The Hydros Skimmer Sensor is a HYDROS Sense Port accessory designed to help prevent protein skimmer collection cups from overflowing. It monitors the waste level inside the skimmer cup and can alert the HYDROS system when the cup level rises too high, helping keep skimmate in the cup instead of overflowing onto the floor or back into the sump. HYDROS Skimmer Sensor Overview This purpose-built optical sensor mounts inside a protein skimmer collection cup and uses a magnetic coupling to hold it in place. When the waste level reaches the sensor, the connected HYDROS system can send an alert and, when the skimmer is connected to a compatible HYDROS-controlled outlet, shut the skimmer down to reduce overflow risk. It is a practical upgrade for reef and saltwater systems where skimmer overflow can create mess, odor, nutrient release, or equipment cleanup problems. Skimmer Cup Protection Features Designed specifically for protein skimmer collection cup monitoring. Helps prevent skimmate overflow onto the floor or back into the sump. Magnetic mount attaches to compatible collection cups without drilling or modifying the cup. Connects directly to a HYDROS Sense Port and requires no separate power supply. Can send HYDROS app alerts when the skimmer cup level reaches the sensor. Can support skimmer shutoff when the skimmer is connected to a compatible HYDROS-controlled outlet. No moving parts inside the sensing mechanism. Hydros Skimmer Sensor Specifications Product type: HYDROS skimmer cup water level sensor UPC: 4714041211962 Connection: HYDROS Sense Port Sensor thickness: 0.55 in Magnet mount thickness: 0.25 in Sensor diameter: 0.75 in Maximum mounting thickness: 0.25 in Mounting style: Magnetic attachment Application: Protein skimmer collection cup monitoring Skimmer Sensor Compatibility Notes The Hydros Skimmer Sensor requires a compatible HYDROS Control device with an available Sense Port. Skimmer shutoff requires the skimmer pump to be connected to a compatible HYDROS-controlled power source such as an XP8, WiFi Power Strip, or Smart Plug. Confirm the sensor state in the HYDROS app before relying on it for skimmer protection. Official HYDROS Skimmer Sensor Video Setting Up the HYDROS Skimmer Sensor Place the sensor inside the skimmer collection cup at the desired shutoff or alert height, secure it with the external magnet, and connect it to an available HYDROS Sense Port. Add the input in the HYDROS app, test the sensor with water before regular use, and configure alerts or skimmer shutdown actions based on the desired safety plan. What's Included 1 x Hydros Skimmer Sensor with magnetic mount