Specifications include, but are not limited to: A Item Name: Radar Stage Sensor Standard of Quality (SOQ): SDI-RADAR, Radar Stage Sensor Mfg: FTS Inc (Forest Technology Systems Inc) Web page: https://ftsinc.com/hydrology/products/sensors/radar-stage-sensor/ SOQ EQUAL Performance Requirements 1 SDI-12 communication interface 2 12V DC supply current 3 Accuracy of +/- 0.02ft (6mm) or finer 4 Accuracy standards maintained or exceeded at minimum measuring distances of 1.7 ft (0.5m) or less 5 Accuracy standards maintained or exceeded at measuring distances of 50 ft (15M) or greater 6 Ability to set stage height at data logger through SDI-12 commands or push-button and display interface 7 Total dimensions of assembled radar housing and cone to fit within the following dimensions: W:6in (153mm) x D:6in (153mm) x H:10in (254mm) 8 Weight not to exceed 4 lbs. (1.81 kg) 9 Protection rating of IP66 or higher 10 Rated at NEMA 4 or NEMA 6