Presentation of the Marantec Digital 921 bi-linked antenna This Marantec Digital 921 radio antenna is designed to optimize the reception capacity of the signal transmitted between the remote control (your transmitter) and the receiver. This antenna was designed and manufactured by Marantec, a leading international home automation brand. Since its creation in 1960, Marantec has continued to improve its products with the aim of always satisfying its customers. By using this antenna, the sensitivity of radio reception will be greatly improved, giving you the best operating condition of your systems connected to this antenna. The Marantec Digital 921 antenna allows you to minimize interference in areas with high interference (such as areas with raised or metal structures). In order to optimize the operation of this antenna, we recommend that you do not install it near sources of interference. Therefore, try to avoid attaching it near another antenna or computer. If you want to install this antenna to optimize the reception quality of the radio signal, you can install it outdoors, but make sure you place it in a place protected from rain or frost as much as possible, as this can interfere with the operation of the antenna. If you want to ensure the best possible operation of the antenna to ensure a better range, it is recommended to install the Marantec Digital 921 antenna high up. A radio receiver antenna This antenna is not just an antenna, but it also includes a bi-linked receiver with a frequency of 868 MHz. This means that you will not need to equip yourself with a receiver: this will save you considerable time. It will be compatible with all bi-linked accessories from the Marantec brand, including Comfort 260 to 380 motors. It is designed for all swing and/or sliding gate operators. It is small (27 x 95 mm) and has a nominal voltage of around 5 V DC. You can register up to 200 transmitters there. The receiver that makes up this antenna has a channel that will allow you to connect it to the motorization of your choice. An antenna to improve your security and that of your home This type of radio antenna is not only practical, but also guarantees the security of your motorization systems: it is capable of preventing signal drops caused by obstacles or interference. If you want to strengthen communication between the remote control and your receiver, the Marantec Digital 921 antenna is the accessory you need. If you have difficulty controlling your motors from your garage, your car or your garden, this antenna can be very useful to you because it will radically increase the range of the remote control. Therefore, you will be able to control your automation from even further. You don’t need to change the remote control to optimize the range, because the Marantec Digital 921 antenna will solve this problem. You can use the Marantec Digital 921 antenna receiver at outdoor temperatures between -20°C and 60°C, thanks to an IP65 protection rating. The Marantec Digital 921 antenna available on Allo Remotecontrol If you order this accessory on our site, installation instructions will be provided with the antenna. In addition, Allo Remotecontrol promises you free delivery for the purchase of two or more remote controls: why not order two remote controls compatible with this antenna? Additionally, a compatible battery will be provided at the time of purchase. If you order from Allo Remotecontrol, the warranty period can even be extended by two years. If you would like to know more about the warranty, do not hesitate to consult our general conditions of sale. If you have any questions or hesitations, do not hesitate to contact us: we are available for you 5 days a week, 24 hours a day.