The SOS 12 is the latest Siren Operated Sensor that will open a gate for an emergency vehicle within 3 seconds of the sounding of a 'Yelp' siren.
The SOS12RM is a combo unit that saves you money when your are purchasing an SOS-12 and a Remote Microphone.
Used when ground and equipment noise interfere with the operation of the SOS-12.
This sensor is the latest update to the original SOS Sensor and comes with the larger 8"x10" sign.
The SOS Horn Door will open a garage door or automated gate with the honk of a horn. The unit can be adjusted to open with 1, 2 or 3 honks of a horn.
These older models are no longer available to purchase but you can still get supporting documentation for them.