Svbony SV183 IR Pass 685nm Filter svbony sv205 the call system watch display:

the call system watch display: customer ’s table number

Press the call button to get help

can search and store radio stations automatically or manually

Room mode 4

or FRS Version 462-467MHz

Svbony SV183 IR Pass 685nm Filter svbony sv205 the call system watch display:The SV183 IR Pass filter is designed to block all wavelengths below 670 nm. Its unique characteristics are its advanced finish and outstanding durability. The Contrast enhancement when used for IR L RGB imaging of the moon and planets improves the results of CCD and CMOS sensors and infrared imaging greatly. 1. Increases contrast: When used to image the moon and planets, it can reduce visual effects and increase contrast. It has a great effect mainly