Unit was delivered quick enough and functions as claimed though the key pad unit for some reason just randomy beeps and flashes the indicator which is annoying and no doubt will affect the battery life. My other concern is the unit is used to control and access door and one has to wonder about the security aspect with the keypad doing strange things. Have discussed the issue with the customer service person and tried a couple of things but the issue still persists. They now want me to video the unit when it is acting up but the random nature of the problem of the problem makes this difficult. Will most likely end up replacing the unit with another make and model.