Liquid Leakage Detecting System 3M™ Water Leakage Detecting Sensor Holder (Sticker) 3M™ Water Leakage Detecting Sensor S-1FP 3M™ Water Leakage Detecting Sensor B-3P 3M™ Water Leakage Detecting Sensor S-1F 3M™ Water Leakage Detecting Sensor PS-1R 3M™ Water-Leakage Detector LLD-24014 (2 Channel Type with RS-485 12-48VDC) 3M™ Water-Leakage Detector WR-NA (Buzz Type) 3M™ Plug-in Water-Leakage Detector WR-TW-KO1000 (General Type) 3M™ Plug-in Water-Leakage Detector WL-AD-2002-A (Advanced-Digital Type) 3M™ Plug-in Water-Leakage Detector WL-AD-2002-A (Advanced-Digital Type)