The Water Witch ® 217, 230, 101, 230-24, 101-24 submersible electronic bilge pump switches allow boat owners to forever rid themselves of the archaic outdated float switch. Instead of an unreliable and short-lived mechanical float switch, our electronic bilge switches have no moving parts and require no adjustments. This eliminates the chance of your battery dying or your pump burning out because of a jammed-on float switch. Temperature, humidity and electrical noise will not effect this switch, nor will it interfere with other electronics. This switch comes with an unprecidented 7 year limed warranty (5 years for Model 101) and is in use by both the Canadian and U.S.Coast Guards. If it's good enough for them,......why not for you? The Dual System 257 from Water Witch, Inc. offers boat owners and manufacturers two systems in one product; primary protection, to activate a bilge pump when it senses the presence of water and a secondary system for added protection or a backup against primary system failure. The 257’s monitoring system is constantly on guard and will activate the primary bilge pump when it detects water for 8 continuous seconds. The 257’s secondary system will activate only when the pump runs for 2 continuous minutes. The monitoring and secondary systems work hand-in-hand to provide previously unavailable protection in one electronic control. The 257 can be connected to any auxiliary system such as a second bilge pump, audio alarm or visual alarm. Meets or exceeds the Canadian & U.S. Coast Guard standards and comes with an unmatched 7 year limited warranty. The Water Witch series of electronic bilge switches are not effected by high levels of anti-freeze in the bilge, will not pump oil overboard, and are not affected by high amounts of froth or foam in the bilge. Don't just take our word for it, watch the videos (Flash 8 or better required). Oil Test Anti-Freeze Test Sea Foam Test The latest addition to the Water Witch line of products, the Model 101, offers an affordable, more reliable alternative to the ordinary mechanical float switch, not to mention the fact that installation of the 101 is a nearly effortless task. So get rid of that old, unreliable float switch and go with a switch you can trust, a product backed by 20 years of experience in the marine industry. For more information on the Model 101 click here. Download Techsheet PDF Download Techsheet PDF Download Techsheet PDF Model 101 Model 217 Model 230 12 Vdc Compact design makes for easy installation Supports up to 15 Amps 5 Year Limited Warranty 2''W x 1.335''H x 1''D Delay on 6-8 Seconds Delay off 14-16 Seconds 12 Vdc Supports up to 10 Amps 7 Year Limited Warranty 2⅝”W x 1⅝”H x 1⅝”D Delay on 6-8 Seconds Delay off 14-16 Seconds 12 Vdc Supports up to 20 Amps 7 Year Limited Warranty 2⅝”W x 1⅝”H x 1⅝”D Delay on 6-8 Seconds Delay off 14-16 Seconds Model 101-24   Model 230-24 24 Vdc Compact design makes for easy installation Supports up to 10 Amps 5 Year Limited Warranty 2''W x 1.335''H x 1''D Delay on 6-8 Seconds Delay off 14-16 Seconds 24 Vdc Supports up to 15 Amps 7 Year Limited Warranty 2⅝”W x 1⅝”H x 1⅝”D Delay on 6-8 Seconds Delay off 14-16 Seconds     Download Techsheet PDF Model 257   12 Vdc Supports 20 Amps Main Supports 10 Amps Aux Supports 25 Amps Total 7 Year Limited Warranty 2.125"W x 3.125"H x 1.625"D Delay on 8 seconds Delay off 15 seconds Auxiliary system delay 2 minutes   Model 257-24     24 Vdc Supports 15 Amps Main Supports 7 Amps Aux Supports 20 Amps Total 7 Year Limited Warranty 2.125"W x 3.125"H x 1.625"D Delay on 8 seconds Delay off 15 seconds Auxiliary system delay 2 minutes