Rugged Radios FHS Behind-The-Head Fire Safety Industrial Headset - /w Mic On/Off Button / For David Clark / Sigtronics / Avcomm 66133 40 Below reduces coolant temperatures

40 Below reduces coolant temperatures up to 40 degrees

Quick Turn

reading scale is accurate to within + or - 3% with no need for math conversions

PN 8225Special oil tract improves lubrication to the distributor and cam gearNylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMechanical advance assembly can easily be locked outAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionPolished steel shaft is QPQ coated and guided by a sealed ball bearingCNC machined billet aluminum housing and billet aluminum baseVacuum advance canister for improved economy (can be locked out)Easy-to-adjust mechanical advance with supplied springs and stop bushingsCARB E

Rugged Radios FHS Behind-The-Head Fire Safety Industrial Headset - /w Mic On/Off Button / For David Clark / Sigtronics / Avcomm 66133 40 Below reduces coolant temperaturesFHS Behind The Head Fire Safety Industrial Headset is designed by Rugged Radios to work universally with almost any fire intercom. The design emphasizes comfort and versatility. Dual 5 pin quick disconnect allows the cord to hang from the preferred side during use, providing easy serviceability. Configurations include no buttons, PTT (Push To Talk) button on the ear dome, and Mic On Off button on the ear dome. Enhanced features such as DNC microphone,