Yes, you should wall mount via internal BESA compatible fixing positions using stainless steel fixings
Product dimensions are as follows:
Height: 86mm
Width: 86mm
Depth: 64.6mm
Our EXS230-1 boasts a loud 100 dB (A) alarm sounder with a 30m range and 10 different tones making it suitable for all general signalling applications including fire, security and process control.