1 pcs water temperature sensor & 1 pcs vdo water temperature gaugemounting thread: 21mm malemeasuring range: 0-120 degreestemperature alarm: 98 ± 2 degreesWater Temperature Sensor:Length: 8cmMaterial: metalcolour:Goldwater temperature gauge:Size:52mmvoltage:24VColour:Blackmaterial:plasticPackage Contents:1 * Water Temperature Sensor1 * water temperature gauge