MK-MT Skylink Wireless Security Keychain Remote Keyfob for SkylinkNet Connected Home Alarm Security & Home Automation System and M-Series. Remotely Arm & Disarm your Home Security System Wirelessly arm and disarm your SkyinkNet or M-Series Alarm System with this Multifunction keychain remote; Arm away; Arm home; Disarm; Panic. Remote features optional passcode protection to prevent accidental presses. Wireless range up to 600 feet in open area (Sensor to HU-100 Internet Hub or M-1 Main Console/Indoor Siren) Compatible with SkylinkNet iOS Apple & Android App and M-Series. Lifetime Support: Toll Free 1-800-304-1187; Email: support@skylinkhome.com