The SERlll Scramble Keypad is a keypad reader designed to prevent onlookers from detecting the PIN code being entered. The LED’s display a randomly allocated set of numbers from 0 to 9. The position of the numbers change every time the keypad is activated. Only the user standing directly in front of the keypad can see the scrambled digits.

• Very narrow viewing angle of the lighted, scrambled digits • The membrane keypad is extremely durable • Random allocation of digits ensures even wear to the keys • Individual PIN codes can be up to 9 digits in length • The SERlll has a weatherproof rating of IP65 • An audible alarm signals when a button is depressed • Robust polycarbonate enclosure • The unit is equipped with power-up diagnostics and self-test routine • The SERlll is provided with Wiegand communication protocol • Over 3.6 million unique permutations are available • Terminal connection on the rear of the unit.