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Ethernet Temperature & Humidity Data Logger

Place these on-premise data loggers throughout your facility and receive all data automatically at your PC.  No retrieving data from loggers.  This is the easiest and most cost-effective way to create a scalable monitoring network.  Compatible with Replaceable Sensors which make calibration easy and fast. Simply order a new sensor with a calibration and you can swap out the old for the new eliminating any downtime and keeping you in compliance.

  • New Replaceable Sensors
  • Email and Text alerts available
  • Eliminates the need to change charts and pens
  • Data automatically downloaded to your computer wirelessly
  • Loggers continue to log in the event of a power outage

These loggers, while wired, are compatible with the WiZARD2 monitoring system and software. Use them in conjunction with your WiZARD2 system or without! They allow you to monitor locations that would have previously been cost prohibitive to monitor wirelessly. Additionally, the extension probe shown in the images is an optional accessory: A895.

Calibration Method

Calibration ensures Regulatory and Audit Compliance

Wizard2 wh645 straight on 13002
Wizard2 wh645 straight on humidity w probe 13003
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Wizard2 wh645 right side angle 13005
Wizard2 wh645 right side angle w probe 13006
Wizard2 wh645 left side 13007
Wizard2 wh645 left side angle 13008
Wizard2 wh645 left side angle w probe 13009
Wizard2 wh645 back 13010
Wizard2 wh645 back open 13011

Download Images: Print Quality | Hi-Res

Important Information

DicksonWare Software is needed to communicate with this product and is sold separately.

Dickson Expert Services

Our Dickson Data Division has specially trained representatives to address the needs of customers with large installations or unique demands. Please call 888-452-4626.

  • Alarm Type High/Low, Low Battery, Calibration Due, Lost Communication
  • Ambient Operating RH Conditions 5-95% RH non-condensing
  • Ambient Operating Temperature Conditions -22.0 to 122.0F (-30.0 to 50.0C)
  • Approvals RoHS, CE
  • Battery Backup 4 AA Batteries
  • Battery Life (Avg) 1 Month/Back-up Only (at 2 Minute Sample Rate in Moderate Conditions). Logger will save logged data, but will not send data when running on battery power only.
  • Cable Details For Setup Only: USB - Male Series A plug to 5 pin Male Series B mini plug (6 ft).; Standard Ethernet (7 ft)
  • Calibration Options N100 , N300, N400, & N520
  • Channels CH1: Temperature, CH2: Humidity
  • Data Capacity 32,000 (16,000 per channel)
  • Dimensions 1.7 x 4.25 x 4.25in
  • Download Type Ethernet
  • Enclosure Black; ABS Plastic Clam Shell
  • Humidity Accuracy +/-2.0% RH from 0.0 to 60.0%; +/-3.0% RH from 60.0 to 95.0%
  • Humidity Range 0-95% RH non-condensing
  • Humidity Sensor Type Digital RH Sensor
  • IP Rating 21
  • Included Accessories USB Cable, AC Adapter, 4 AA Batteries, Quick Start Guide
  • Mounting Options Free Standing or Wall Mount (With Keyhole)
  • Network Requirements If Host PC and Logger are on separate subnets, both Logger and Host PC subnets must be able to see each other. For best results, assign a fixed IP Address to the Host PC. If preferred, logger can be setup using DHCP (contact Dickson Technical Support for
  • Note on Alarm Type All alarm conditions will generate a pop-up notification in the Dickson WiZARD Software. Text/Email notification available with use of WiZARD SECURE Software.
  • Notes The WH645 Logger reads temperature and humidity and sends data back to the Receiver at regular intervals.
  • PC Requirements HelpMinimum of 2 GB RAM; Windows XP (with service pack 3) and Windows 7; 2 available USB ports
  • Power Cord 6 ft
  • Power Source 120 to 240 VAC, 12 VDC (INTL fittings available)
  • Power Source Input AC 100-240 0.5V 60/50 Hz
  • Power Source Output DC 9V, 1A
  • Power Status Indicator Red/Green/Blue (RGB) LED
  • Remote Probe Dimensions Houses thermistor and RH sensor in polycarbonate plastic; 1.5" x 0.5" (1.25cm x 4.5cm)
  • Remote Sensor Length 10 ft (optional)
  • Remote Sensor Type 1 Field Replaceable Digital Temperature/RH Sensor
  • Response Time 30 Seconds to 63% of Full Scale
  • Sample Interval User Selectable (from 10 seconds to 1 hour in 10 second intervals)
  • Software Options W2 Version or higher
  • Storage Conditions -22.0 to 158.0F (-30.0 to 70.0C)
  • Storage Conditions RH 0-95% RH non-condensing
  • Temperature Accuracy +/-0.8F from 20.0 to 122.0F 1.8F Remaining (+/-0.44C from -7.0 to 50.0C 1.0C Remaining)
  • Temperature Range Help-22.0 to 185.0F (-28.0 to 85.0C)
  • Temperature Sensor Type Field Replaceable
  • Unit Weight 3 lbs
  • Units/Pkg 1
Why should I calibrate?

All instruments lose accuracy over time due to normal usage and the environmental conditions to which they are exposed.

How often should I calibrate?

For most applications, the recommended calibration interval is every twelve months.

N100 1-Point NIST Traceable Calibration $99.00 Add
N300 3-Point NIST Traceable Calibration $156.00 Add
N400 3-Point Ultima NIST A2LA Accredited Calibration $269.00 Add
What is NIST Calibration?

NIST stands for the National Institute for Standards and Technology. This organization is responsible for maintaining the master for different measurements, such as the standard "foot", standard, "second", or standard "pound". NIST also maintains the standard for temperature, humidity and pressure.

NIST Traceable means that the measuring standard can be traced directly back to the master standard maintained by the NIST organization.

NIST-Traceable does not tell you the measurement accuracy of a metrologty service in any detail. Only metrology services that can document their ISO 17025 standard provided data on their best measurement uncertainty.

Sensor Dust Filter

Sensor Dust Filter - prolong the life of your sensor.

Replaceable Temperature/Humidity Sensor

Angled Temperature/Humidity Replaceable Sensor

WiZARD2 Wireless Repeater

Wireless Repeater

WiZARD2 Wireless 21CFR11 Secure Software

WiZARD2 Wireless 21CFR11 Secure Software (Software Only)

WiZARD2 Wireless Software with Email and Text Alerts

WiZARD2 Wireless Software with Email and Text Alerts (Software Only)

Wireless Wizard2 IQOQ Validation Package

Wireless Wizard2 IQOQ Validation Package

AC Adapter

AC Adapter