Retekess T118 Wireless Coaster Pager System 999 Channel Size:1 Keypad + 10 Pagers it is the smarter first

it is the smarter first step before moving to APS-C later

ASI585MC Pro or ASI678MC may be a better fit depending on how you image

Maximum transmission of up to 95%

Standby Time: About 20 hours

Retekess T118 Wireless Coaster Pager System 999 Channel Size:1 Keypad + 10 Pagers it is the smarter firstRetekess T118 Wireless Coaster Pager System 999 Channel T118 Coaster paging system. Description: Retekess T118 wireless calling system support 998 pagers in total. It is made with ABS material which is more durable and fall resistant. It is also waterproof but you can't put it in the water. This calling can be canceled by pressing the mute key on the pager. It can reach 500 meters in an open area. Function: Support 998 pagers. Two notice modes: buzzer