Product Name: Plastic Case Pressure Gauge Model NO.: GPT0150 Structure: Spring Pressure Gauge Application: Industrial, Civil Display: Pointer Accuracy: 2.5 Type: General Pressure Gauge Measuring Range: Medium-pressure Gauge Product Description GP SeriesPlastic Case, brass movement & connectionTechnical DataSize :1.5"(40mm), 2"(50mm), 2.5"(63mm), 3"(80mm)Measuring Range:-1~ 0, 0 ~ 2.5MpaDial :Aluminum Window :PlasticPointer :AluminumCase :black ABSMovement :brassSocket :brassBourdon Tube :phosphor bronze C-tube for vacuum to 2.5MpaConnection :1/8", 1/4", 3/8", 1/2" NPT, PT, G, BSPT threadMounting :bottom or center back mount Accuracy :1.5", 2" (±2.5% of full scale), 2.5"up (±1.5% of full scale)Operating Temperature :-20 ~ 60°C( -4 ~ 140°F)Application :water, air, gas, pump, compressor, regulator and other working fluid not corrosive to wetted parts