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SPI Observer 400 - Indoor/Outdoor High Water Alarm - (10A400 / SMD-4H)

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SPI Observer 400 - Indoor/Outdoor High Water Alarm - (10A400 / SMD-4H)

Availability: In stock

The SPI Observer 400 is a high water alarm rated for indoor and outdoor use. It includes a 15’ mechanical float switch. The box is designed to turn on an audible and visual alarm whenever the float is activated.



Indoor/outdoor alarm with large light, audible horn, 15' mechanical alarm float, and auxiliary dry contacts (High Level) Supply Voltage: 120

The Observer 400

  • NEMA 4X rated, durable, weather-resistant enclosure for indoor and outdoor use
  • Automatic alarm reset, horn silence button, and alarm test button
  • 360 degree visible alarm light
  • Alarm horn sounds to 85 decibels at 10'
  • Mechanical alarm float switch included (15' cord)
  • Auxiliary dry contacts are standard
  • SST mounting screws included
  • UL-listed alarm system


  • Dimensions: 6.0" x 4.0" x 3.5" (external mounting feet)
  • Enclosure: NEMA 4X rated, durable, weather-resistant (water-tight)
  • Horn: 85 db at 10'
  • Weight: 3.5 lbs. with float
  • Voltage: 120 VAC primary, 12 VAC secondary, 60 Hz (alarm condition 15 watts max)
  • Float Switch Connection: Internal terminal strip
  • Alarm Light: 360 degree visible
  • Standard Auxiliary Contacts: 240 VAC, 5 amp max resistive/60 Hz



Additional Information

Additional Information

Manufacturer SPI
Attachment View File Observer_400 Installation Manual Size: (n/a)
Attachment View File Observer_400__Sales_Sheet_New Size: (184.45 KB)
Product Reviews
Number of reviews : 3
Average rating : 5 /5
A. Anonymous
  the 13/11/2020
5/ 5
Have not changed the system over to your product but was recommended by company that is repairing the system.
A. Anonymous
  the 19/05/2017
5/ 5
See above comment
A. Anonymous
  the 30/03/2016
5/ 5

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