Features   SRH3500 SRH3800 STP8000 STP8100 SRG3500
Size and Weight
Size (HxWxD)
130x58x30
130x58x30
133x61x32
133x61x32
54x180x110
Weight (std Battery)
214
214
<250
<250
980
Power Supply
RF Specification
Frequency band
Security
Display and indicators
Audio
Voice Services
Wireless Data Services
Installation
GPS