Hirose Electric HR34B miniature waterproof connectors provide advanced water and dust protection with an IP67 to IP68 rating when fully mated. These push-on, bayonet lock connectors are resistant to industrial grade oils. Four position receptacles are sealed against water penetration and do not require protective caps when mounted on the panel. The HR34B features easy and precise mating: inserting the plug unit completes mating while rotating the sleeve counterclockwise unlocks the connectors. Markings make aligning the plug with the receptacle easy when mating and the guide keys make blind mating possible. Hirose HR34B miniature waterproof connectors meet the requirements of the TUV standard and comes in a wide range of variations.