do handsets have two sided lock capabilities?

RELATED FAQS

Question
Answer
For devices shipped after 8-24-2015 with motor driven:  a.       0-200 ft, use  #18 gauge wire b.      0-500 ft, use #14 gauge wir...
For Product Shipped prior to 8-24-2015 with solenoid driven:          a.       0-100 ft, use #14 Gauge Wire      b.&n...
  For Product Shipped Prior to August 2012 using the old (black) potted module: a.       0-100 ft 14 gauge wire b.      0-200 ft 12...
 
See transformation document.