The 2 Channel SMART RF Controller is an advanced 433MHz stand-alone transceiver that can be used to arm/disarm an alarm system and operate an auto gate or garage door. The two relay outputs are fully programmable and controlled by up to 250, RF110 Keyfobs. Model : RF159 The unit is compact so it can easily fit inside a gate controller cabinet or can be mounted easily to most surfaces. The wide operating voltage 9 to 28 volts AC/DC makes it easy to power from third-party controllers or power supplies The RF159 box contains the following parts: 2CH SMART RF Controller 1x Antenna Instruction Sheet Compatible Keyfobs RF110 Smart 5 Button Keyfob The 2-way communication protocol is encrypted with rolling code and anti substitution technology making the RF159 an ideal choice for controlling gates, garage doors, lights or security systems. Downloads Bosch Smart Controller RF159 Datasheet