I've hit a wall. Went on a service call today. Bad photo eye for exterior lighting. usually a simple fix. But I found that they installed a 24 vac, 2 wire sensor.Which Controls the energy management system. can't find one anywhere. Grainger was my best bet...but I seem to be striking out. there is nothing for a part number on this thing either...anyone have any ideas.I have the sensor bypassed, in the on position but that won't flyfor long.

Who made the system? I may be able to help you locate the photo eye.

Kele, out of Tenn.I've talked with them already they made the controller only and the periphials are all add on's by the contractor who installed it...The installer Was Griffith out of penn. I think. No answer at the number I got...

Grainger #2HTH3
EM Photocell,Photosensor,Use/w 2HTH2
EM Photocell, Sensor Type Photosensor, Installation Type Exterior Or Roof Of Building, Watts 1 Amp @ 30 VAC/VDC, Voltage 24 AC/DC, Color Grey, For Use With 2HTH2

I found this:
http://www.controldepot.net/index.asp?PageAction=VIEWPROD&ProdID=295&MMP=1013191911

$$