HD21
Customer Interface Unit
HD21 is a customer interface unit designed for simplicity and user-friendliness. Shaped in a mobile phone form factor, it gives user the familiarity of a 3 x 4 keypad that is smooth to the touch and ease of one hand operation. HD21 is equipped with comprehensive functions like topping up credits via STS, reading household’s instantaneous energy consumption, identifying alarm indicators on LCD, buzzer on low credit and many more.
