HOBO U23 Pro v2 External Temperature Data Logger

SKU: U23-004

Overview

The HOBO Pro v2 Temperature/External Temperature data logger is a weatherproof data logger with an external soil/water temperature sensor on a 6-foot cable useful for situations where just one temperature probe is required. An internal temperature sensor is also included.

Highlighted Features

  • Weatherproof housing for use in outdoor or condensing environments
  • High accuracy
  • Small-diameter external sensor versions for measurements in tight spaces
  • Optic USB interface for fast and reliable download
  • Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis

In what environment does this data logger operate?

This data logger operates in an outdoor environment.

What measurements does this data logger support?

The U23-003 data logger supports the following measurement: Temperature

Temperature Sensor

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%) - temperature

3 minutes in air moving 1 m/sec; 30 seconds in stirred water

Stability (drift) : < 0.1°C (0.18°F) per year

Logger

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 (part # HP-B)

Battery life (typical use) : 3 years with 1 minute or greater logging interval

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

Materials

ASA styrene polymer housing and mounting clamp; polypropylene protective cap; Buna-N o-ring(s)

Cables

One 184 cm (6 ft.) PVC cable; sensor diameter 0.5 cm (0.20 in.)

Environmental rating

Electronics housing is NEMA 6P equivalent (tolerant of brief submergence). Units with RH sensors are NEMA 4 equivalent (splash-resistant).

Launch modes

Immediate start; delayed start

Logging interval

Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours (refer to HOBOware software manual)

Weight

102 g (2.7 oz)

Dimensions

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

NIST Certification

Temperature certificate available for additional charge

HOBO U23-004 Data Sheet

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HOBO U23 Pro v2 Data Sheet

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HOBO U23 Pro v2 Quick Start Guide

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HOBO U23 Pro v2 Manual

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