Modumho RLM48 Module – Especially suited for use with conductive materials such as rain/tap water etc. Easy calibration. 48mm DIN standard enclosure suitable for panel mounting. 11 pin plug in base connection. LED output indication. 110/230V ac supplies in same unit. SPCO relay output 3A max non-inductive. Designed & manufactured by SYNATEL. High level – RLM48/T: relay normally energised (no material present) or low level RLM48/LT: relay normally de-energised (no material present) options available. Various optional single or twin level probes available.