Onset U22-001 HOBO Water Temperature Pro v2 Data Logger (-40°~70°C)

Temperature Sensor: 

  Operation Range: -40° to 70°C (-40° to 158°F) in air; maximum sustained temperature of 50°C (122°F) in water 

  Accuracy: ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F)

  Resolution: 0.02°C at 25°C (0.04°F at 77°F)

  Response Time (90%): 5 minutes in water; 12 minutes in air moving 2 m/sec (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 ONLY 

  Memory (Non-volatile): 64K bytes memory (approx. 42,000 12-bit temperature measurements) 

  Weight: 42 g (1.5 oz) 

  Dimensions: 3.0 cm (1.19 in.) maximum diameter, 11.4 cm (4.5 in.) length; 

mounting hole 6.3 mm (0.25 inches) diameter

Delivery scope:

  HOBO U22-001 Water Temp Pro V2

  Communications window protective cap