Place of Origin: Anhui, China (Mainland) Brand Name: OEM or EXACT Model Number: 115AL Product: oil filled pressure gauge OEM: accept material: stainless steel case and brass internal connection: bottom connection liquid: glycerin or silicone connection thread: BSP, NPT, BSPT and other special specifications Certification: ISO.KS bourdon tube: brass movement: brass pointer and dial: aluminum Normal Size: 1.5"(40mm),2.0"(50mm),2.5"(63mm), 3"(75mm),4"(100mm),6"(150mm). Pressure Range: -1Bar(-30"Hg)-0-1000Bar(15000Psi) Accuracy: ±1%,±1.6% Operating temperature: -20°C to +60°C Case: Stainless steel Bezel: Stainless steel Bourdon tube: Copper alloy or Stainless steel