Take a look at the Passotel 120LCD Operation & user’s manual, which clarifies what is in the box, power on and power off, together with periodic checks.
What does the RedMax REVOLUTION - 15-BF Operation & user’s manual include? It summarizes rated values and dimensions, installation guide and long-term storage.
Everything you need to operate the Crest Audio ST2 is in this Owner's manual, which gives details on technical specifications, programming options and warranty terms.