Barriers with 4 double lenses 4TX+4RX (32 cross beams). FOSTER is a perimeter IR barrier with crossed beams designed to protect external areas from intrusion, with a beguiling design and compact dimensions. Due to its innovative features and sophisticated technological content, it belongs to the top-end product range but it is available at truly unrivalled value for money. FOSTER incorporates all the technological and functional advantages of and, while at the same time ensuring maximum compatibility. FOSTER has a maximum range of 100 metres outdoors and it is ideal to protect large surface areas. This barrier is sturdy, safe, weather-resistant and it is supplied with an automatic temperature control system (to avoid malfunctioning in the event of condensation and frost) and a specific disqualification function (to avoid false alarms caused by fog).