VersaLog VL-WF-V

  • 16-bit analog-to-digital converter
  • 8 MB memory size
  • Both USB and WiFi (requires external power) interfaces
  • Programmable input ranges (-5 VDC to 20 VDC)
  • Over 10 years of battery Life
  • Wide sampling interval selections (1 second to 12 hours)
  • Siteview software required (1 license per site) and sold separately


Additional Equipment Required


The VL-WF-V WiFi Voltage Data Logger is an 8-channel, battery powered, standalone and WIFI-enabled voltage data logger. The logger
records eight external voltage sources and saves data in 8-MB memory.

Its aluminum enclosure makes it excellent in the harshest industrial environment.

Embedded WIFI module allows remote data monitoring and downloading.

16-bit ADC makes it well suited for science and laboratory applications where precise and accurate measurements are critical.

Simply power the logger in WIFI covered area and access it from your computer for configuration, downloading, graph viewing and more…

Siteview software required and sold separately. One license per site, can be used on multiple loggers.


Siteview Software

VersaLog SiteView Software

SiteView is a Windows-based application which works with the VersaLog Series data loggers for downloading, configuration, data analyzing and plotting. Its user-friendly graphic interface plus powerful functionality fit both novice and advanced users.

The versatility of custom equation and custom-line equation handle complicated measurement requirements.

  • Supports USB, Serial port and Ethernet connections for easy local and remote access
  • Fast communication speed up to 115200 bps makes downloading fast
  • Real-time view and chart recording replaces chart recording device
  • Custom equation and custom-line equation solves scientific and laboratory algorithm difficulties
  • Zoom in/zoom out, annotation/label of graph functions provide detailed view of data
  • Multiple file loading allows easy data comparison.
  • Dynamic statistics provides detailed information of current zoomed view
  • One license per site required, can be used on multiple loggers.

Software Requirements:

  • Computer with 1.0 GHz or faster processor
  • 256K Memory or higher
  • 1.0 GB of available hard-drive space or higher
  • Windows XP with SP2 or later, Vista, Windows 7 and 8
  • At least one USB port or one COM port


ConnectionsPluggable terminal block for eight external channels
ChannelsEight external voltage DC inputs.
Software programmable input range selections for each channel:
Accuracy+/- 0.05% FSR @ 25°C
Input Impedance> 1 MOHM
Over Voltage Protection+/- 40 VDC
Channel AlarmsTwo editable alarm thresholds per channel
Alarm IndicatorOn-board LED lights in red when in alarm condition.
On-Board Memory
Data RetentionOver 20 years
Sampling & Logging
Sampling interval1 second to 12 hours user selectable
Logging ModeStop recording or FIFO when memory is full
Logging ActivationProgrammable instant, start delay or field push-button activation
InterfaceUSB (USB cable included), WiFi Module (USB wall adapter included)
WiFi ModuleStandard: 802.11b/g/n,
Frequency Range: 2.412 – 2.484GHz
Transmit Power: 11-18 dBm
Receive Sensitivity: -82 to -93 dBm
Encryption: WEP64/WEP128/TKIP/AES
Can be Enabled/Disabled by SiteView software
PowerBuilt-in 3.6V Lithium Battery
Life Cycle10 years based on 1 minute sampling interval
SiteViewConfiguration, downloading, plotting, real-time view, custom calibration
and custom equation
RequirementsComputer with 1.0 GHz or faster processor
1 GB Memory or higher
10 GB of available hard-drive space or higher
Windows XP with SP2 or later, Vista, Window 7, 8, 10
At least one USB port
MaterialAluminum enclosure
Dimensions88 X 64.2 X 24 mm (3.46 X 2.53 X 0.95 inches)
MountingProbe/wall mount holes for hanging / mounting
LED IndicatorNormal Sampling: green when sampling
Alarm: red when sampling
Low Battery: amber when sampling
Operating Environment-40 ~ +70°C (-40°F ~ 158°F), 0~95%RH non-condensing
Clock Accuracy+/- 1 minute per month
ApprovalsCE, FCC