The Ellenex PLL Liquid-Level Transmitter is a battery-powered submersible liquid-level transmitter that reports tank and reservoir levels over LoRaWAN. It is designed for long-term outdoor deployment in water, wastewater and industrial applications, with a sealed stainless-steel sensor head and ultra-low-power electronics for multi-year maintenance-free operation.

Key specifications

• Hydrostatic liquid-level measurement with high accuracy (typ. ±0.25% span)
• LoRaWAN 1.0.2 Class A; bands AS923, EU868, US902-928 and AU915-928
• Built-in replaceable 3.6 V lithium battery with 10+ years typical service life
• IP68-rated sensor head with UV-protected enclosure for harsh outdoor use
• Stainless-steel wetted parts (SS304/SS316) with Viton seals
• Sampling period configurable over the air via LoRaWAN downlinks (default 4 hours)

Use it for remote tank, well, reservoir and sump monitoring. It joins any standard LoRaWAN network (AS923, EU868, US902-928, AU915-928) via OTAA or ABP, so it works with the network server and IoT platform of your choice.