The wireless emergency shut-off wrist strap from Vactor Manufacturing is a new safety feature for all new Vactor HXX vacuum excavators made after January 2017, including the mid- and full-sized HXX Hydroexcavator, HXX Prodigy and HXX Paradigm trucks. The device communicates with the wireless remote control on the truck via Bluetooth technology. A locking ring on the strap connects to the digging lance, and also features a magnetic connection tethered to the ring. When the digging lance is dropped, the magnetic connection is broken. 800/627-3171; www.vactor.com.