astra777We have 1 Scytek electronic ASTRA 777-TC manual available for free PDF download: Product Manual . Scytek Electronic ASTRA 777-TC Product Manual (40 pages) VEHICLE SECURITYAstra777 Scytek Full Feature 2-Way Paging Car Alarm. Plug-in user programmable Coded Override Switch. Remote Panic with Smart LockingUnlocking. Alarm Trger zone Identification. Horn Output. Built-In