There are three types of this product that can be selected: Mechanic 2 Function (Bell + DND) / Mechanic 3 Function (Bell + DND + MUR) / 

Mechanic 4 Function (Bell + DND + MUR + Pls wait).

Basic Parameters:

1. The function display of the panel is distinguished by lights of different colors: DND is red; Pls wait is blue; MUR is green.

2. Self-contained power: about 0.3W, the momentary power of pressing the doorbell is less than 1.5W.

3. Working temperature: -10℃-50℃.

Note: The "Pls Wait" function is invalid when "Do Not Disturb" is needed, just wire it like the "Make Up Room" function.

This product matches all series of switch panels and can be made in a variety of styles, including D8, D8B, V8-Z8, V8-RP, D29, D5, etc.; it

can be made of a variety of materials, including metal, plastic and glass; It can be made in a variety of colors, including black, white, gray, etc.