Dickson

WH Temperature & Humidity Data Logger

Receive all data automatically at your PC without retrieving data from data loggers

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Used in
WH Temperature Humidity Data Logger 02640
WH345 2
WH345 3
WH345 4
WH345 5
WH345 6

Place these 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. 

These loggers are 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.

The WH345 transmits data wirelessly, and requires no hard wiring.  The WH645 transmits data via Ethernet and while wired, is compatible with the WiZARD2 monitoring system and software. Use it in conjunction with your WiZARD2 system or without! It allows you to monitor locations that would have previously been cost prohibitive to monitor wirelessly.

• New replaceable sensors
• Email and text alerts available
• Wireless or Ethernet data transmission
• 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

Remote Probe DimensionsHouses thermistor and RH sensor in polycarbonate plastic; 1.5 in x 0.5 in (1.25 cm x 4.5 cm)
Remote Sensor Length10 ft (optional)
Remote Sensor Type1 field replaceable digital temperature / RH sensor
Response Time30 s to 63% FS
Sample IntervalUser selectable (from 10 s - 1 hr in 10 s intervals)
Signal StrengthLess than 10 mW (WH345, WHG45 only)
Software OptionsW2 version 1.2.0.11 or higher
Storage Conditions-22.0°F - 158.0°F (-30.0°C - 70.0°C), 0% - 95% RH, Non-condensing
Temperature Accuracy± 0.8°F from 20.0°F - 122.0°F, 1.8°F remaining (± 0.44°C from -7.0°C - 85.0°C, 1.0°C remaining)
Temperature Range-20.0°F - 185.0°F (-28.0°C - 85.0°C)
Temperature Sensor TypeField replaceable
Unit Weight3 lbs
Units/Pkg1
Wireless Range300 ft (WH345 only)
Alarm TypeHigh/low, low battery, calibration due, lost communication
Ambient Operating RH Conditions5% - 95% RH, Non-condensing
Ambient Operating Temperature Conditions-22.0°F - 122.0°F (-30.0°C - 50.0°C)
Antenna TypeInternal (WH345 only)
ApprovalsRoHS, CE, FCC part 15 compliance (WH345 only)
Battery BackupFour (4) AA Batteries
Battery Life (Avg)WH345: 6 months (at 2 min sample rate in moderate conditions)
WH645: 1 month, back-up only (at 2 min sample rate in moderate conditions). Logger will save logged data, but will not send data when running on battery power only.
Cable DetailsWH345: USB - male series A plug to 5 pin male series B mini plug
WH645: For Setup Only: USB - Male Series A plug to 5 pin Male Series B mini plug (6 ft).; Standard Ethernet (7 ft)
Cable Length6 ft (WH345 only)
Calibration OptionsN100, N300, N400, N520
ChannelsCH1:Temperature, CH2: Humidity
Data Capacity32,000 (16,000 per channel)
Digital DisplayYes
Dimensions1.7 in x 4.25 in x 4.25 in
Download TypeWH345: Wireless
WH645: Ethernet
EnclosureBlack; ABS Plastic Clam Shell
Humidity Accuracy± 2.0% RH from 0.0% - 60.0%; ± 3.0% RH from 60.0% - 95.0%
Humidity Range0% - 95% RH, Non-condensing
Humidity Sensor TypeDigital RH sensor
IP Rating21
Included AccessoriesUSB cable, AC adapter, four (4) AA batteries, quick start guide
Mounting OptionsFree Standing or Wall Mount (With Keyhole)
Network RequirementsIf 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 (WH345 only)
Note on Alarm TypeAll alarm conditions will generate a pop-up notification in the Dickson WiZARD Software. Text/Email notification available with use of WiZARD SECURE Software
NotesThe logger reads temperature and humidity and sends data back to the receiver at regular intervals
Output Signal4800 Baud Serial Data
PC RequirementsMinimum of 2 GB RAM; Windows XP (with service pack 3) and Windows 7; 2 available USB ports
Power Cord6 ft
Power Source120 V - 240 V AC, 12 V DC (INTL fittings available)
Power Source Input100 V - 240 V AC, 0.5 V, 50/60 Hz
Power Source Output9 V DC, 1 A
Power Status IndicatorRed/Green/Blue (RGB) LED
Radio Frequency900 MHz (902 MHz - 928 MHz) (WH345 only)

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