Constructed of a welded 316 stainless steel body, a Delrin nosepiece and custom length polyurethane cable, the KPSI 380 submersible temperature transducer, from Measuremet Specialities, offers ±0.1°C accuracy and a stability of ±0.05°C per 12 months. It uses either SDI-12 or RS-485 serial digital interface. Operation from 6-28VDC supply voltage with an IP-68 and NEMA 4P rating, the transducer is certified to numerous CE qualifications. It features the company's Nickel RTD and ASIC chipset sensors, and is available with optional lifetime lightning protection. The device operates with minimal current drain. Multiple sensors can be used with a single data recorder. Up to 10 transducers can be configured on a single SDI-12 bus. The transducer was originally designed for use by governmental agencies and academic research institutions involved in environmental and surface water monitoring applications such as stream gauging, aquifer characterization, groundwater monitoring and storm water. These applications typically include solar/battery-powered operation. With optional RS-485 interface, it can be utilized in applications such as dam operations, thermoelectric water discharge, aquaculture/egg hatcheries, natural gas hydraulic fracturing and mining operations.