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The TG-2 installs modularly and provides Teleguard protection for two devices from a single line RJ-11 T adapter.

Power: Phone line powered (25V-100V DC on-hook talk battery, 10mA-100mA )
Dimensions: 2.54 cm x 3.81 cm x 2.2 cm (1in x 1.5in x .875in)
Environment: -26 C to 54 C (-15 F to 130 F) with 5% to 95% non-condensing humidity
Connections: RJ-11 male and female

Vikings Teleguard privacy devices prevent your phone calls or fax and modem transmission from being interrupted if someone accidentally picks up another extension. Teleguard devices can also secure against internal eavesdropping by any other extension equipment