The Solo 111 Extension Pole is to be used to extend the height of the Solo 110 telescopic access pole. The maximum working height using Solo 110 and Solo 111 poles is 4.5m for Solo and Testifire. This is achieved using (1) Solo 110 telescopic pole and a maximum of (3) Solo 111 extension poles. It is recommended to stand directly under the detector. No more than (3) Solo 111 extension poles should be used at the same time.