1 GPS unit with all pertinent hand-held information pre-loaded. Don't forget to record the truck location before taking off. Use the MOB (man overboard) function at least.
Hand-held radio with an extra battery. Make sure radio is turned on before departure. (Remember that it is not possible to hear radio traffic on or near a running snowmachine.)
Any job-specific Personal Protective Equipment (PPE) needed for the task planned for that day’s work.
Helmet for each crew member