Meriam, Pressure TransmitterMeriam Process Technologies’ Model M1500 Digital Pressure Transmitter is a compact, NIST-traceable, precision measurement instrument available in a variety of pressure ranges and communication/output options. Models are available for differential, gauge, compound and absolute pressure measurements. Output options include analog (4-20mA, 0-5V and two SPST switches) or digital (RS-232, RS-485 or USB) models. Communication with the digital M1500 is achieved using Meriam Serial Protocol (MSP), the Meriam DLL or LabVIEW. Digital units have an option of dual-pressure sensors in one unit (any non-differential pressure combination). Personal computer (PC) configuration software is included. – meriam.com