Beginning October 15, 2018, ADC-branded models of the 804N Palm Gauge will be built with a metal bayonet connector. The bayonet-style connector provides better protection in the event the product is dropped, and offers clearer feedback when the cuff-end tube is properly inserted. The upgrade also translates to more versatility as the bayonet connector is more widely used in the field. All new or repaired 804N series palm gauges shipped from ADC with the new connector style will include a conversion kit, Item 804C3KIT. Conversion kits are available free of charge for any registered product that uses an 804N series gauge.