The PTM/N/RS485 Series 44 is an outstanding transmitter and part of a range specifically designed for the measurement of depth and level in water, wastewater and tanks. The Series 44 offers RS485 (Modbus) protocol together with a 4-20 mA, two‑wire configuration for both level and temperature. It is rangeable to 25% of the specified FS. Features such as Kevlar strengthened cable, titanium, ballast weights, dataloggers, etc. broaden the installation opportunities.