Sensaphone 1400 - Manual (Page 41)

Chapter 4: Zone Programming
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3. Press the corresponding Zone key (1–4), Power(0), or Sound(9).
The 1400 will say “Enter minutes.”
4. Using the number keys, enter minutes. Then press ENTER.
The 1400 will say “OK, enter seconds.”
5. Using the number keys, enter seconds. Then press ENTER.
1400 will say “OK.”