"Pitkin" Heater Controller
The Pitkin Controller, developed by our friend and 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 are 100%, 80%, 60%, and 40%. To reset back to 100%, simply switch the canister off for 10 seconds. A lid with an integrated heater controller will have a piece of red shrink wrap on the cord.
It is recommended to use a Pitkin integrated battery pack for heated undergarments ONLY. Plugging a lighthead into an E/O inline with a Pitkin Controller will cause damage to your lighthead and potentially void the warranty.