- Same features as the K641+ along with the following:
- Built-in card reader; simply present access card directly to the keypad
- Arm and disarm with an access card or code
- Programmable automatic unlocking schedule
- Door Left Open and Door Forced Open alarms
- Door contact and request for exit inputs
- Door lock output
- Same specifications as the K641+ except for the following:
- Current Consumption 140 mA maximum
- Operating Temperature 0 to 49 °C
- Dimensions 12.3 x 14.4 x 3.2 cm