Lock responses in ComboGard Pro 39E Electronic Combination Lock August 19, 2025 15:26 Updated LOCK RESPONSESStandard OperationsEntry Devices with LEDs respond with both LED flashes and beeps.Single signal - one (1) LED flash and one (1) beep indicate the operation is complete.Double signal - two (2) LED flashes and two (2) beeps indicate entry is valid or accepted.Triple signal - three (3) LED flashes and three (3) beeps indicate invalid or not accepted.NOTE: The 8130 Entry Device (no LED) responds with beeps only.Additional OperationsDelay Period - The LED will flash once every second.Open Period - The LED will flash twice a second, and the Entry Device will beep every 10 seconds.If any key is pressed, the Lock will flash the LED and beep three times.Penalty Period - The LED will flash every ten (10) seconds.Low Battery Warning - During a Lock opening, the LED will flash and Entry Device will beep repeatedly. Related to Safe Locks - Legacy Products Download Article