Philips HEARTSTART XLT M3500B - Manual (Page 156)

Symbol Definitions
13-10 Specifications & Safety
Symbol Definitions
The following table lists the meaning of each symbol shown on the HeartStart
XLT and the M3516A battery.
Table 13-1 Defibrillator and Battery Symbols
Symbol Definition
On.
Off.
Shock hazard.
Attention - See operating instructions in user’s guide.
Power module input.
Input
!