Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bell for Office/Home/Store,Door Open Chime Window Alarm Operating Range 600ft With 52 Chimes 4 Volume Levels, 1 Door Sensor + 1 Plug-in Receiver Specification of Door Sensor Alarm...

The multiple award-winning Restaurant Manager’s Handbook is the best-selling book on running a successful food service operation. Now in the 4th completely revised edition, nine new chapters detail restaurant layout, new equipment, principles...