HOBO Water Level Data Logger Starter Kit (30) KIT-S-U20-01

Overview Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands. This kit includes: - U20-001-01 HOBO data logger (30 #39; range) - BASE-U-4 base station with 5 interchangeable couplers - BHW-PRO HOBOware Pro software. Like other HOBO Water Level Data Loggers, the 30-foot version offers exceptional value and ease-of-use, with no cumbersome vent tubes or desiccants to maintain. Features Lightning protection - no long signal wires, and electronics are shielded in stainless steel housing (see the Water Level logger sensor location drawing) HOBOware Pro software provides easy conversion to accurate water level reading, fully compensated for barometric pressure (see demo), temperature, and water density (use barometric pressure data from nearby weather station). Multiple-rate sampling (see demo) allows faster sampling at critical times such as when pumping starts or stops. Available in four depth ranges Ideal for use in wells, streams, lakes, wetlands and tidal areas No-vent-tube design for easy reliable deployment Durable ceramic pressure sensor Spesifications Pressure Sensor Operation range: 0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude Factory calibrated range: 69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F) Burst pressure: 310 kPa (45 psia) or 18 m (60 ft) depth Water level accuracy*: Typical error - 0.05% FS, 0.5 cm (0.015 ft) water Maximum error: - 0.1% FS, 1.0 cm (0.03 ft) water Raw pressure accuracy**: 0.3% FS, 0.62 kPa (0.09 psi) maximum error Resolution: lt; 0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water Pressure response time: 90% lt; 1 second