The PM1 and PM7 pressure mats are 595mm x 170mm x 3mm and are designed to be placed on a stair tread.
The PM1 has normal sensitivity and will detect a person walking up or down stairs. The PM7 has an increased sensitivity, these pressure pads are often used in novel applications, chairs, seats, hand operated, targets in games, precise media presentation triggers etc. See data sheet.
The image shows the pressure mat with 4 separate wires, this option is usually used in security applications. It is also available with a 2 core round cable up to 3 metres in length.