Misuratore temperatura acqua auto 2" 52mm sensore NPT1/2 allarme manuale 50-120°C/130-250°F
Note：You can manually set the alarm point by turning the front nut with a wrench! (No wrench included). This gauge with alarm function. 1 x Water Temp Gauge (NOT includes instruction). Thread Size of Sensor Port: NPT 1/2.