The Pitkin Controller, developed by esteemed cave explorer Andy Pitkin, was designed to go inline between a battery canister and heated drysuit systems.
By toggling the switch, you reduce the power that is going to the heated undergarments and extend your burn time. Power levels available vary between 40 and 100 percent in 20 percent increments. To reset back to 100 percent, simply switch the canister off for 10 seconds.
It is recommended to use a Pitkin integrated battery pack for heated undergarments ONLY.