15 Inch LLS Liquid Level Sensor

Neptune Systems LLS – Liquid Level Sensor delivers continuous, precise water depth monitoring for advanced aquarium automation. Unlike traditional float or optical sensors, the LLS measures exact vertical liquid levels in real-time, displaying readings in centimetres or inches via Apex Fusion. Perfect for ATOs, sumps, dosing containers, and mixing stations, it tracks evaporation patterns, monitors consumption, and triggers custom alerts or automated responses. The 15-inch size suits medium-depth tanks and reservoirs. Compatible with Apex A2 or A3 Series controllers (requires FMM module). Includes mounting clip for straightforward installation. Requires Neptune Apex A2/A3 system; not compatible with Apex Classic.