Metal bezel. Ideal for severe environments, especially applications requiring high impact and vibration resistance Simple modular design facilitates post installation servicing, modification and adaption of machines by non-specialists Designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery High performance: International standards & certifications ( Marine certification, IP66 IP67 IP69 IP69K, Type 4X) Wide range of operating temperatures from -40�C to 70�C allows versatility in usage of product Vibration resistant screw clamp connection terminals ensure high vibration resistance making product suitable installation on high impact machine