Retekess TD164 Pager System, 10 Coasters 30H 300mAh and Charging Dock Color:Black and general deep-sky observing

and general deep-sky observing

One key turns off all receivers presses the power key for 6s on the transmitter

slim and compact design

suitable for telescopes up to 125mm

narrowband emission-line filters like the Astronomik OIII 12nm offer a powerful solution

Retekess TD164 Pager System, 10 Coasters 30H 300mAh and Charging Dock Color:Black and general deep-sky observingProduct Description Retekess TD164 Restaurant Pager System Extend guest pagers from 001 to 998 2 prompt mode vibration+beep+flash and vibration+flash A long range paging system can reach 800m in the open area Long Service Time of pagers up to 30 hours after full charge guest can stop the alert once they have received the call