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SPI Observer 200 - Indoor High Water Alarm With Battery Backup - (10A200 / SMD-21H)

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SPI Observer 200 - Indoor High Water Alarm With Battery Backup - (10A200 / SMD-21H)

Availability: In stock

The SPI Observer 200 is a high water alarm system that works for many applications. This in an indoor alarm meaning it will not work for outdoor applications



Indoor alarm with audible and visual alarm, 15' mechanical alarm float, battery back-up, 6' power cord, auxiliary dry contacts, and quick snap terminal connectors (High Level)

The Observer 200

  • Red "alarm" light, green "on" light and 85 decibel horn at 10ft
  • Mechanical alarm float switch included (15' cord)
  • Alarm test and horn silence button with auto reset - 120 VAC
  • The alarm will continue to work even when the primary power fails due to our battery back-up feature
  • Auxiliary dry contacts are standard
  • external quick connect terminal block for easy float installation


  • Demensions: 6" x 3-3/4" x 2-1/2"
  • Enclosure: NEMA 1 thermoplastic (external mounting feet)
  • Horn: 85db at 10'
  • Weight: 2.5 lbs. with float
  • Voltage: 120 VAC primary, 9 VAC secondary, 60 Hz (alarm condition 2.5 watts max)
  • Power Cord: 6 feet, 120 VAC
  • Float Switch: 15' mechanical float with tie strap (normaly open)
  • Float Switch Connection: Quick connect float connection. Does not apply power. Class two output, 12 VAC
  • Standard Auxiliary Contacts: 240 VAC, 5 amp  max resistive/60 Hz
Additional Information

Additional Information

Manufacturer SPI
Attachment View File Observer_200 Installation Manual Size: (699 KB)
Attachment View File Observer_200__sales_sheet Size: (n/a)
Product Reviews
Number of reviews : 3
Average rating : 2.3 /5
M. Jaime
  the 13/08/2023
1/ 5
Never got and the 1st 1 installed didn't last a year
A. Anonymous
  the 21/08/2021
1/ 5
Can't rate something I haven't received.
A. Anonymous
  the 29/08/2018
5/ 5
I replaced an old SPI Observer 300 because the audible alarm was no longer working. My cellar is slightly damp and the old alarm was made of metal. I liked the fact that this one was all plastic but sturdy. It was very easy to install since it was similar to the original one. I tested it and the audible and alarm light worked great. I like that this one has battery back-up, as the old one did not. A very good product. Thanks.

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