1.VDO water temperature switch, 2.Thread size: M16x1.5,alarm:98C 3.Thread size: M16x1.5,alarm:102C 4.VDO switch,VDO sensor, VDO water temperature switch,Thread size: M16x1.5,alarm:98CThread size: M16x1.5,alarm:102CVDO switch,water temperature protection switch