Jump to content

Another *What is this*

Jerry Simon

Recommended Posts

High-rise condo heated by an in-wall, two-pipe type of fan-assisted hydronic heater.  Right above the wall supply register, which is right above the heater itself, there is a small plastic box that resembles a doorbell enclosure from the 1950's.  Inside this box, there is a sensor(?) thingy wired with low-voltage wiring (there are six wiring strands here, but only two of the wires are connected to the sensor thingy).   The sensor is made of white plastic, and is about 1" x 2" in size.  Neither the box nor the sensor are labeled.  Anybody know what this is?   (It isn't a doorbell, by the by.)


Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...