Presentation of MARANTEC FT42B Photocells (Ref: 178437) MARANTEC FT42B Photocells (Ref: 178437) are security devices available on Allo Remote Control made by the MARANTEC brand. These devices have an adjustable angle of 180° and are powered by two 1.5 V AAA batteries. These photocells are intended for outdoor use. Update on photocells They prevent impacts against your gate. Indeed, each photocell has its very specific mission. One is the transmitter cell and the other is the receiver cell. The emitting cell of the photocell emits a beam of light at a specific wavelength. This light beam is directed towards the receiving cell which is sensitive to the same wavelength. When light reaches the receiving cell, it is converted into an electrical signal which is then processed by an electronic circuit. If the light is interrupted, the electrical signal diminishes or stops altogether, indicating the presence of an object or person blocking the light beam. In the case where light is present, the electrical signal is maintained at a certain level, thus indicating the absence of obstacle. Photocells designed to be installed in multiple environments These photocells have a range of 10 to 20 m and a protection rating of IP55. The first number 5 in the IP55 rating indicates that the equipment is protected against solid particles. For example, dust, dirt, shavings and insects, and that they cannot penetrate inside the equipment in harmful quantities. The number 5 also means that the equipment is protected against jets of water coming from all directions, making it suitable for use in wet or rainy environments. Another particularity, the temperature of use of this product is between -20°C and 55°C. Installation of MARANTEC FT42B Photocells (Ref: 178437) To find out more about the technical specifications of these photocells, you can consult the manual. It is available at the following link. FAQ for MARANTEC FT42B Photocells (Ref: 178437) Can you tell me more about MARANTEC brand products? Thanks to Marantec products, find all the comfort and practicality for your home: with reliable products designed from quality materials, your automations will not only be durable, but they will also provide maximum security to your home. Thanks to the ISO certification that the Marantec brand has enjoyed for years, you can be assured of benefiting from the best products for your motor systems. Where can I find other MARANTEC brand products? You can find other MARANTEC brand products on Allo Remote control by consulting this link Why buy this product on Allo Remote control? First, know that your satisfaction is the priority. We will handle your product with great care. Then, your order is shipped the same day. Then the 1 year warranty is offered (possible extension up to 2 years – see CGV) Finally, telephone assistance (08 99 25 30 57) or by email (assistance@alloremotecontrol.com) available 5 days a week