onsetcomp com 40onsetcomp com Key Advantages Available in four depth ranges No vent tube design for easy and reliable deployment Available in stainless steel and titanium versions Durable ceramic pressure sensor for reliable performance Calibration certificate included Water Level Logger Kits Deluxe Kit includes a carrying case two HOBO Water Level Loggers one 13 foot for barometric pressure and one 13 foot 30 foot or 100 foot HOBOware Pro software and a HOBO Waterproof Data Shuttle with coupler The Starter Kit includes a HOBO Water Level Logger HOBOware Pro Software and an Optic USB Base Station Available in 13 foot 30 foot and 100 foot depths HOBO Water Level data loggers offer high accuracy at an affordable price with no cumbersome vent tubes or desiccants to maintain These data loggers are ideal for recording water levels and temperatures in wells streams lakes wetlands and tidal estuaries Supported Measurements Water Level Barometric Pressure Pressure Absolute Temperature For complete information and accessories please visit www onsetcomp com Part number U20 001 04 U20 001 04 Ti U20 001 01 U20 001 01 Ti U20 001 02 U20 001 02 Ti U20 001 03 U20 001 03 Ti HOBO Water Level Specifications Range 0 4 m 0 13 ft 0 145 kPa 0 21 psia 0 9 m 0 30 ft 0 207 kPa 0 30 psia 0 30 m 0 100 ft 0 400 kPa 0 58 psia 0 76 m 0 250 ft 0 850 kPa 0 123 psia Factory Calibrated Range 0 to 40 C 32 to 104 F 69 to 145 kPa 10 21 psia 69 to 207 kPa 10 30 psia 69 to 400 kPa 10 58 psia 69 to 850 kPa 10 123 psia Water Level Accuracy Typical Error 0 3 cm 0 01 ft 0 075 FS 0 5 cm 0 015 ft 0 05 FS 1 5 cm 0 05 ft 0 05 FS 3 8 cm 0 125 ft 0 05 FS Resolution 0 14 cm 0 005 ft 0 21 cm 0 007 ft 0 41 cm 0 013 ft 0 87 cm 0 028 ft Burst Pressure 310 kPa 45 psia 18 m 60 ft depth 500 kPa 72 5 psia 40 8 m 134 ft depth 1200 kPa 174 psia 112 m 368 ft depth Temperature Specifications all models Range 20 to 50 C 4 to 122 F Accuracy 0 37 20 C 0 67 68 F 0 44 from 0 to 50 C 0 79 from 32 to 122 F Resolution 10 bit 0 1 20 C 0 18 68 F Response time 5 minutes to 90 in water Dimensions 2 46 cm diameter x 15 cm 0 97 x 5 9 in hole in mounting bail 6 3 mm 0 25 in CE compliant Yes Titanium version recommended for saltwater deployment 1HOBO Base Station or HOBO Waterproof Shuttle required See page 56 for more details 2Coupler included with HOBO Base Station or HOBO Waterproof Shuttle Accurate affordable water level monitoring HOBO U20 Series Water Level Loggers Starter Kit Deluxe Kit Minimum System Requirements Coupler1Base Station See pg 56 Software See pg 45

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