Max Pressure: 58 psi. Response Time: 150 ms. Fluid Pressure Limit: 0 to 87 psi. Operating Humidity: ≤ 85%, without condensation. Operating Temperature: Transmitter: 14deg to 140degF (-10deg to +60degC). The Burkert 50000 Series pH and ORP transmitter is a compact device designed for measuring the pH or oxidation-reduction potential (ORP) in clean liquids or liquids that may have low conductivity. The transmitter consists of a replaceable standard 120 mm pH or ORP probe screwed in a probe holder with integrated Pt1000 temperature sensor. This assembly is then mated to an enclosure containing the electronic module and a removable display for a quick and easy installation. The pH/ORP transmitter can operate independent of the display, but it will be required for programming the transmitter and also for visualizing the measured and processed data. The 50000 Series Standard is available with either two transistors and one 4-20 mA output or two transistors and two 4-20 mA outputs. The 50000 Neutrino Series is a cost effective less featured product measuring pH and ORP but with one 4-20 mA output and is not available with an LCD display. Is ideal for cooling tower or swap water quality measurement.. Burkert. Burkert. 561228. UPC: 683194568107. EAN: 0683194568107. GTIN: 00683194568107.