Doorking Surface Mount Trim Ring Kit | DKS-1803-150 787856 These roller chains also feature

These roller chains also feature solid rollers which will increase the performance and life of the chain

2 - ET4-WXS Wallswitch readers

protecting it from vibrations and environmental impacts

offering long-term reliability

Maximum installation simplicity: the possibility of adjusting the infra-red head up to 90° both left and right (180° in total) means these photocells can be installed on walls or posts that are not aligned

Doorking Surface Mount Trim Ring Kit | DKS-1803-150 787856 These roller chains also featureDoorking Surface Mount Trim Ring Kit DKS 1803 150 A surface mount trim ring kit painted in black that is use with surface mount 1903, 1810, 1834, 1835 and 1837 telephone entry systems.