U23-004 Temperature & Ext.Temperature Data Logger (weatherproof)

Description

The HOBO Pro v2 Temp/Ext Temp 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 probes is required. An internal temperature sensor is also included.
 

IMPORTANT: Requires Hoboware software and a base unit or waterproof data-shuttle.
NOTE: Hoboware software is now available as a free download that will suffice for most applications. The PRO Version is available for extra analysis tools and use with a Data Shuttle. For the differences between the FREE and PRO versions, please refer to the BHW-Lite (Hoboware Free DVD & USB Cable) entry in the Recommended Products section (below). The download link is also available on the BHW-LITE Page.
Please order a BASE Station (USB-Optic Interface) via the Recommendated Products area below if required.

Features

• Weatherproof housing for use in outdoor or condensing environments
• High accuracy
• Replaceable RH sensor provides fast response and superior recovery from condensing conditions
• Small-diameter external sensor versions for measurements in tight spaces
• Optic USB interface for fast and reliable download

Specifications

Temperature Sensor

• Operation range:
  Internal sensors: -40° to 70°C
  U23-004 external sensor: -40 to +100°C with tip and cable immersion in fresh water up to 50°C for 1 year
• Accuracy: 0.2°C over 0° to 50°C
• Resolution: 0.02°C at 25°C
• Response time: (typical to 90%)
  Internal sensors: 40 minutes in air moving 1 m/sec
  U23-004 external sensor: 3 minutes in air moving 1m/sec; 30 seconds in stirred water
• Stability (drift): < 0.1°C per year

Logger

• Operation range -40° to 70°C
• Real-time clock ± 1 minute per month 0° to 50°C
• 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 All models:
  ASA styrene polymer housing and mounting clamp; polypropylene protective cap; Buna-N o-ring(s)
• Cables: 1off 184cm (6') PVC cable; sensor diameter 0.5cm
• 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)
• Offload modes: Offload while logging; stop and offload
• Battery indication: Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile.
• Weight: 102 g
• Dimensions: Housing measures 10.2 x 3.8 cm

Technical

U23 Series Weatherproof Data Loggers