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Original price $169.00 - Original price $169.00
Original price
$169.00 - $169.00
Current price $169.00

SP-400 Septic Tank Alarm

The SP-400 high water alarm monitors the water levels in sump basins, holding tanks, lift stations, and many other non-potable water and wastewater applications.
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  • Key Features
  • Specs
  • Warranty
  • The SP-400 will alert you when your septic system is reaching maximum capacity due to a pump or float switch failure. When installing your float switch, you can set it at a predetermined height in the septic system. If the water goes above that height, the alarm will sound and alert you of the issue. This can help you prevent a huge flood or major issues within your septic system.

    The alarm can be silenced while you work on the issue. However, the red light will stay on until the water level is back to normal. This will let you know if you have fixed the issue, or if further service is needed. The alarm can also be tested to ensure you can hear it.

    The SP-400 Septic Tank Alarm is made from NEMA 4X non-metallic enclosure with external mounting feet and a gasket in the door. It also comes with mounting brackets and a 6-foot power cord for easy installation. It is rated for outdoor use.


    • Dimensions 8"x4"x4.25"
    • Weight 2lbs
    • 6-foot power cord
    • Type 4x non-metallic enclosure for indoor and outdoor use
    • External mounting feet 3.5"x5.5"x4"
    • External Mounting Feet for quick installation
    • Test and Silence Button
    • Type 4x non-metallic enclosure for indoor and outdoor use
    • 6 foot, 120 vac power cord
    • Installing on a separate circuit allows the unit to operate in the event of pump circuit failure

Questions & Answers

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  • I want to install a visible (light ) alarm for our gray water tank. There is a 110 power source at the tank site for the lift pump. The light would be on the 4 x 4 post which has the 110 outlet. Does your SP-04000 High Water alarm have a float switch? If not what kind of a switch do I need to install this alarm?

    you can use a mercury float by sje rombus to accomplish this 

  • Does it use a normally open or closed float switch

    You can use either a normaly open float switch or normally closed since they both have to close contact to work. The only diffrence is they close contact in a different position. So you can use either float switch if you want.