requester- кнопку вызова HY-2610B3

1. Can work with all the hosts (HY-2611C, HY-2611E, HY-2611F, HY-2611G) 2. When press the buttons on them. The hosts (2611E, 2611F, 2611G) or the pager will display the numbers. 3. There are three kinds of them: One button--2610B1 (service key), two button--2610B2 (service and cancel keys, can work with monitor system), three button--2610B3 (service, bill and cancel keys, can work with monitor system). 4. Wooden and black colors 5. There are two kinds of stands work with this series. One is Plexiglas stand, in which you can insert manual or advertisement; another one is back clip, by which you can clip to the table.