MasTrack MT-OBD Live GPS Vehicle Tracker with Engine Diagnostics Real-time GPS updates up to every 1 minute. Nationwide coverage (USA & Canada). Required monthly subscription as low as $10.99 No installation. Simply plugs into OBD-II port available on every vehicle manufactured since 1996 Unlimited email and text message alerts for tampering, speeding, geofence, etc Access from any internet enabled device. No software required. Android and iOS app available 30 Day Guarantee. No long term contracts. Cancel any time. 1 Year Manufacturer's Warranty