Its right at the end...

"The election of a Reversal normally indicates that the expected high or low that should unfold could take place in as short a time span as 1 to 3 units of time, be it daily, weekly, monthly or quarterly. Therefore, a low might develop the very next day following the election of a Daily Bearish Reversal or within the next few days. The same is true for all price activity levels."
https://www.armstrongeconomics.com/the-princeton-models-and-methodologies-a-users-guide/system/

in the Models & Methodologies Second Edition (recommended) pdf its on page 28. "The election of a reversal normally indicated that the expected high or low that should
unfold could take place in as short a time span as 1 to 3 units of time (i.e. daily, weekly,
monthly, or quarterly).