Dwyer&reg; Line Powered Water Leak Detector, WD3-LP-D2, DPDT, No Audible Alarm Switch Type: DPDT relay Temperature Limits: 32 to 122F (0 to 50C) Visual Alarm: Red LED for water level; Green LED for power condition Enclosure Material: ABS polycarbonate with flammability classification UL 94 V-0 Enclosure Rating: NEMA 6P (IP68) submersible; Agency Approvals: CE, RoHS