Jack D asked:


I have an area that is switched using IR illumination for a camera of CCTV. If I install a PIR in this section but may trigger a collection of IR andalusia walking beyond human?

s_kaz asked:


I have to calculate the width of the board that is placed between the cylinder block and an assembly for a cover of the CCTV camera. the diameter of the cylinder is 88.90 mm y. The width of the block assembly is 40 mm I know there is a very easy answer to this but you can get around it thanks I feel that the length required must be equal to the length of mounting block

all about nothing!!!! asked:


desigened a system for contronl two buildings qu? monkeys (field water) these two buildings far from each other and want to connect the c? maras site (CCTV system) in the far building to the main building (main control room ) without any wires qu? m? everything I used (the system of radio, microwave, GSM or any other m? all) (the distance butween the nearly 3 kil? meters)