– the autonomous system is not connected with the vehicle electrical system
– the user verification is done automatically through the electronic chip (does not require the user actions)
– the system activates automatically and obliviously, the alternative manual activation of the system is also possible;
– the activation of the system is based on the movement of the vehicle not starting of the engine or similar person based activity.

Features	Sherlog Mini Comfort	Sherlog Optimum Comfort	Sherlog Premium Comfort	Sherlog Classic *
System price	449 €	899 €	1199 €	476 €
Monthly subscription fee	27 €	36 €	37 €	23 €
Annual subscription fee (the discount 10% is applied)	291 €	389 €	399 €	241 €
3 years subscription fee(the discount of 25% is applied)	729 €	972 €	999 €	602 €
Autonomous system	v	v	v	v
Manual activation	v	v	v	v
Automatic identification of the user	v	v	v
Automatic discreet activation	v	v	v
Lower power consumption user identification system is used	v	v	v
Extended service period (once a year)	v	v	v	v
High power transmitter		v	v	v
Additional technical security measures			v