Onset U20-001-01 HOBO 30-Foot Depth Water Level Data Logger (0~207 kPa; -20°~50°C)

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: < 0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water

  Pressure response time: 90% < 1 second

  Thermal response time (90%): Approximately 10 minutes in water to achieve full temperature compensation of the pressure sensor

Temperature Sensor:

  Operation range: -20° to 50°C (-4° to 122°F)

  Accuracy: 0.37°C at 20°C (0.67°F at 68°F)

  Resolution: 0.1°C at 20°C (0.18°F at 68°F) (10-bit)

  Response time (90%): 3.5 minutes in water (typical)

Logger:

  Real-time clock: ± 1 minute per month 0° to 50°C (32° to 122°F)

  Battery: 2/3 AA, 3.6 Volt Lithium, factory-replaceable

  Memory (non-volatile): 64K bytes memory (approx. 21,700 pressure and temperature samples)

  Dimensions: 2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter

  Weight: Approximately 210 g (7.4 oz)

Delivery scope: HOBO U20-001-01 Water Level Data Logger (30-foot depth)

Manual

Video