WH Temperature & Humidity Data Logger

Place these data loggers throughout your facility and receive all data automatically at your PC without retrieving data from data loggers

Starting At
$778.00 CAD
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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

Alarm Type High/low, low battery, calibration due, lost communication
Ambient Operating RH Conditions 5% - 95% RH, Non-condensing
Ambient Operating Temperature Conditions -22.0F - 122.0F (-30.0C - 50.0C)
Antenna Type Internal (WH345 only)
Approvals RoHS, CE, FCC part 15 compliance (WH345 only)
Battery Backup Four (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 Details WH345: 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 Length 6 ft (WH345 only)
Calibration Options N100, N300, N400, N520
Channels CH1:Temperature, CH2: Humidity
Data Capacity 32,000 (16,000 per channel)
Digital Display Yes
Dimensions 1.7 in x 4.25 in x 4.25 in
Download Type WH345: Wireless
WH645: Ethernet
Enclosure Black; ABS Plastic Clam Shell
Humidity Accuracy 2.0% RH from 0.0% - 60.0%; 3.0% RH from 60.0% - 95.0%
Humidity Range 0% - 95% RH, Non-condensing
Humidity Sensor Type Digital RH sensor
IP Rating 21
Included Accessories USB cable, AC adapter, four (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 (WH345 only)
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 logger reads temperature and humidity and sends data back to the receiver at regular intervals
Output Signal 4800 Baud Serial Data
PC Requirements Minimum of 2 GB RAM; Windows XP (with service pack 3) and Windows 7; 2 available USB ports
Power Cord 6 ft
Power Source 120 V - 240 V AC, 12 V DC (INTL fittings available)
Power Source Input 100 V - 240 V AC, 0.5 V, 50/60 Hz
Power Source Output 9 V DC, 1 A
Power Status Indicator Red/Green/Blue (RGB) LED
Radio Frequency 900 MHz (902 MHz - 928 MHz) (WH345 only)
Remote Probe Dimensions Houses thermistor and RH sensor in polycarbonate plastic; 1.5 in x 0.5 in (1.25 cm x 4.5 cm)
Remote Sensor Length 10 ft (optional)
Remote Sensor Type 1 field replaceable digital temperature / RH sensor
Response Time 30 s to 63% FS
Sample Interval User selectable (from 10 s - 1 hr in 10 s intervals)
Signal Strength Less than 10 mW (WH345, WHG45 only)
Software Options W2 version or higher
Storage Conditions -22.0F - 158.0F (-30.0C - 70.0C), 0% - 95% RH, Non-condensing
Temperature Accuracy 0.8F from 20.0F - 122.0F, 1.8F remaining ( 0.44C from -7.0C - 85.0C, 1.0C remaining)
Temperature Range -20.0F - 185.0F (-28.0C - 85.0C)
Temperature Sensor Type Field replaceable
Unit Weight 3 lbs
Units/Pkg 1
Wireless Range 300 ft (WH345 only)