Autotether Wireless Lanyard
 

Wireless kill-cord and man overboard sensor form a system that attaches directly to OEM marine engine kill switches. The AutoTether is fully automatic with safety as a first priority, protecting up the operator and up to 3 passengers (including pets) while allowing full, unrestricted movement around any boat.
Complete System includes: (1) emergency stop switch (kill switch) clip, (1) receiver, one sensor, AAA batteries, Detailed Owner's Manual, (2) Belt clips, and (2) Velcro straps. Additional operator and passenger sensors are sold separately. Each host unit can support up to (4) sensors.