Sherlotronics 2 Button remote transmitters
Sherlotronics remote transmitters
Code hopping encryption
Unique antenna design incorporating the keyring increases operating range by 50%
Crystal frequency-controlled within +/- 100KHz
Frequencies available are 403.55MHz and 433.92MHz
12V Battery operation - GP23A alkaline cell
Typically 2 years battery life expected under normal use
LED flashes when there is a low battery condition
Rubber buttons are easy to press and click positively