Onset U23-004 HOBO U23 Pro v2 Temperature Data Logger (external sensor) (-40~100 ° C)

Temperature sensor:

  Operation Range: -40 to 100°C (-40 to 212°F), with tip and cable immersion in fresh water up to 50°C (122°F) for one year

  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 (Typical to 90%):  3 minutes in air moving 1 m/sec; 30 seconds in stirred water 

Operation Range: -40° to 70°C (-40° to 158°F)

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

Battery: 1/2 AA, 3.6 Volt lithium, user-replaceable (HP-B)

Memory (Non-Volatile): 64K bytes memory (approx. 21,000 temperature and RH measurements)

Weight: 118 g (3.1 oz)

Dimensions: Housing measures 10.2 × 3.8 cm (4.0 × 1.5 in.)

Manual

Video