| Brand | System Sensor |
|---|---|
| MPN | 5601P |
| UPC | 767571885077 |
Check the listing for details. System Sensor 5601P, 135 Degree Fixed Temperature Rate-of-Rise, Single-Circuit. Condition: New. Listed at 13.99 USD. And these models accommodate four-square back boxes, when used with a square to round plaster ring. The reversible mounting bracket permits both flush- and surface-mount back box installations. The 5600 series provides clear markings on the exterior of the unit to ensure that the proper detector is being used.