Answer:
The Sewa K-336 is compatible with 433.92 MHz wireless single-key and multi-key call buttons, supporting up to 999 registered units. It is powered via an external DC 12V to 18V power adapter included in the package.
The Sewa K-336 display receiver (KT Ref: KTI0401200WNCPS) operates as a centralized annunciator compatible with the following peripherals and inputs:
- Transmitters: Pairs with 433.92 MHz wireless call buttons (single-button or multi-button service units) up to a system limit of 999 transmitters. If remote transmitter buttons require batteries (they are not included), they communicate directly over the 433.92 MHz band.
- Power Input: Operates on DC 12V~18V; the display panel is supplied with its dedicated compatible DC power adapter for standard mains connection.
- Mounting: Designed for surface wall mounting at nurse desks, cashier counters, steward pantries, or administrative monitoring stations.