The cable reel is very important to measure boom lengths on telescopic cranes, basic information for any load limiter or over tipping control system. ACQ is installed into a very robust case made of enforced resin, that maintains the whole weight very low. The cable in the drum can be steel made for just measurement applications, or multipolar cable for signals transfer. In addition, ACQ installs internally an accelerometer sensor, used to measure boom length, another basic information for load moment calculation. In order to be installed on aerial platforms, ACQ can have double length potentiometer and double angle sensor, to fulfil actual required standards. This device is also available with CAN-BUS link which provides better sensitivity and accuracy, and reduces the wiring through direct connection of this unit into a global CAN network.