WiFiScope WS4 DIFF WiFi oscilloscope

A differential WiFi oscilloscope

Base price:  1,848.00

A differential 4 channel, 50 MHz WiFi oscilloscope from TiePie engineering.

Key specifications

  • Differential inputs
  • 12, 14, 16 bit resolution, 0.3 % DC accuracy
  • Up to 50 MSa/s sampling, 50 MHz bandwidth
  • 128 kpoints memory per channel

Full specifications Data sheet Manual Request info

Base model:
  • WiFiScope WS4 DIFF-50
  • WiFiScope WS4 DIFF-25

Order code:

WiFi connected

Using a computer based oscilloscope was never easier than with the WiFiScope WS4 DIFF: simply switch it on and start the software on the computer:

  • no power cables required as it is battery powered and can operate hours on a fully charged battery
  • no interface cables required as it uses WiFi to connect to the computer

This allows you to measure fully floating, fully isolated from your computer. The WiFiScope WS4 DIFF can be placed near any test subject that may be hard to reach, or on moving objects, where wired connections are not possible.

Because the WiFiScope WS4 DIFF is not connected to the computer, there is no risk of damaging the computer.


LAN connected

When measuring in remote locations where a wired network is available, the WiFiScope WS4 DIFF can also be used through its LAN port. Measurements can then be performed from any location via the network, without having the computer to be close to the test subject.

Using its 1 Gbit LAN connection, the WiFiScope WS4 DIFF can achieve higher streaming performance than via WiFi.


USB connected

When wireless measuring or LAN connected measuring is not required or not possible, the WiFiScope WS4 DIFF can also be connected via its USB port. This gives the benefit of even higher streaming performance.


View all ways to connect

The WiFiScope WS4 DIFF is a 4 channel differential USB oscilloscope with a maximum sampling speed of 50MSa/s and 128 kpoints memory per channel. The differential input channels enable safely measuring, without risk of creating a short circuit through the oscilloscope. The WiFiScope WS4 DIFF is delivered with a complete measurement software package that offers all you need for your measurement applications.

Rugged industrial design

The WiFiScope WS4 DIFF features a rugged design. Its enclosure is fitted with rubber protectors at the front and the rear. These protect the WiFiScope WS4 DIFF against damage by mechanical shocks. The rubber helps absorbing shocks and protects the connectors at the front and the rear of the WiFiScope WS4 DIFF, these fall within the protected zone.

Additionally, the rubber prevents your WiFiScope WS4 DIFF from sliding. The rubber protectors have special notches that simplify stacking instruments. Holes are included that allow to connect a strap to hang the instrument near the test subject.

WiFiScope Front sideview

Differential inputs

The WiFiScope WS4 DIFF features four isolated differential input channels. This makes it the ideal instrument to perform measurements in high voltage circuits, amplifiers, switch mode power supplies, power inverters etc. No more risk of creating short circuits through your oscilloscope!

Read more about differential measuring

Diff input

Fast continuous streaming

Besides measuring in block mode as oscilloscope, the WiFiScope WS4 DIFF is also capable of performing continuous streaming measurements as data logger. This will create a continuous uninterrupted data stream to the computer. The data can then be displayed on the screen and/or saved to disk.

Read more about streaming measurements

WiFiScope Front sideview

Versatile Multi Channel oscilloscope software

The WiFiScope WS4 DIFF is delivered with the versatile Multi Channel oscilloscope software, which transforms the WiFiScope WS4 DIFF into an oscilloscope, spectrum analyzer, data logger, multimeter and protocol analyzer.

Some of the powerful features of the Multi Channel oscilloscope software are indicated below, for a full description of the Multi Channel oscilloscope software, refer to the Multi Channel oscilloscope software pages.

Quick Setup

To simplify setting up the measurements, the Multi Channel oscilloscope software contains a large number of Quick Setups, for almost any application. A Quick Setup contains the basic settings for a specific measurement as well as additional information regarding the selected Quick Setup, like e.g. how your Handyscope and/or accessories need to be connected. Quick Setups can also contain reference signals. After loading the Quick Setup, that specific measurement can be performed and if needed, small adjustments to the setup can be made.

The Quick Setups are carefully organized in a tree structure, ordered by application. Just a few mouse clicks allow to perform a complex measurement.

Read more on the Quick Setups...

Flexible signal displays

The Multi Channel oscilloscope software scope, spectrum analyzer and datalogger offer an ultimately flexible way to display all aspects of the measured signals. They can have one or more graphs, each displaying one or more signals, where each graph can display different parts of a signal. Graphs can display the signal(s) of your Handyscope in Yt mode, in XY mode or as frequency spectrum, with or without interpolation. Colors of all items in a graph can be set to any required value. Graph dimensions can be adjusted to any required size, graphs can be located in one single window or in separate windows, which can be located anywhere on the desktop.

Read more on Graphs...

Touchscreen friendly toolbars

An oscilloscope toolbar and channel toolbars are available for each detected Handyscope. The convenient toolbars provide clear buttons for all settings of the oscilloscope and its channels. They show the current settings of the oscilloscope and allow to change all settings. The large buttons are very suitable for touchscreen operation.

The toolbars are fully configurable through the program settings. You can set the button size, add or remove buttons and change the order of the buttons.

Read more on oscilloscope toolbars... Read more on channel toolbars...

Many automatic measurements

The Multi Channel oscilloscope software features many automatic measurements, that can be performed on the measured signals of your Handyscope or on a selection of the measured signals. Using the automatic measurements in the oscilloscope, any detail of your signal is revealed. Two sets of cursors, both horizontal and vertical, can be used to indicate a part of the signal that needs to be examined thoroughly. The automatic measurements include e.g.: Mininum, Maximum, Top-Bottom, RMS, Mean, Variance, Standard deviation, Frequency.

The measurement results are shown in a special value window that can be positioned anywhere on your computer screen. A convenient toolbar allows you to enable or disable a measurement with a single click. The measurement results can be copied to the clipboard e.g. to use them in reports. When printing the graphs, the cursors and measurements results are also included.

Read more on cursors and measurements...


The multimeter in the Multi Channel oscilloscope software turns your Handyscope into a multimeter can be used to measure or monitor specific properties of a signal, like True RMS value, frequency, maximum value etc. The Multi Channel oscilloscope software multimeter can have any number of fully configurable displays, either displaying the measured value as a number or using a gauge display. When using a gauge display, it can be very helpful when adjusting a circuit for a specific property, e.g. adjusting an offset to zero.

Read more on the Multimeter...

More features

To discover more features of the comprehensive Multi Channel oscilloscope software for your WiFiScope WS4 DIFF, visit the Multi Channel oscilloscope software pages for a full description.

WiFiScope WS4 DIFF specifications

The tables below show detailed specifications of the WiFiScope WS4 DIFF. Jump to acquisition specifications, trigger specifications or general specifications.

Acquisition system

Number of input channels4 analog
Ch1, Ch2, Ch3, Ch4Isolated female BNC
ResolutionUser selectable in software
Native12 bit
Enhanced14, 16 bit
Accuracy0.3 % of full scale ± 1 LSB
Ranges (Full scale)±200 mV
±400 mV
±800 mV
±2 V
±4 V
±8 V
±20 V
±40 V
±80 V
Impedance2 MΩ / 40 pF
Noise135 µVrms (200 mV range, 12 bit, 50 MSa/s)
50 µVrms (200 mV range, 16 bit, 195 kSa/s)
Maximum input voltage (in all ranges)±200 V (DC + AC peak < 10 kHz)
with 1:10 attenuator ±300 V (DC + AC peak < 10 kHz)
Maximum Common Mode voltage200 mV to 800 mV ranges : 2 V
2 V to 8 V ranges : 20 V
20 V to 80 V ranges : 200 V
Common Mode Rejection Ratio-48 dB
Bandwidth (-3dB)DC to 50 MHz maximum
AC coupling cut off frequency (-3dB)1 Hz
Channel Isolation500 V
Channel Separation-80 dB
Maximum sampling rateWS4 DIFF-50WS4 DIFF-25
12 bit50 MSa/s25 MSa/s
14 bit3.125 MSa/s3.125 MSa/s
16 bit195.3 kSa/s195.3 kSa/s
Maximum streaming rateWS4 DIFF-50WS4 DIFF-25
12 bit500 kSa/s250 kSa/s
14 bit480.8 kSa/s250 kSa/s
16 bit195.3 kSa/s195.3 kSa/s
Sampling clock source 
Accuracy±0.01 %
Stability±100 ppm over -40 °C to +85 °C
Time base aging±5 ppm/year
ExternalOn extension connector
Voltage3.3 V TTL, 5 V TTL tolerant
Frequency range95 MHz to 105 MHz
Memory128 kpoints per channel
SystemDigital, 2 levels
SourceCH1, CH2, CH3, CH4, OR, digital external
Trigger modesRising edge, Falling edge
Inside window, Outside window
Level adjustment0 to 100 % of full scale
Hysteresis adjustment0 to 100 % of full scale
Resolution0.025 % (12 bits)
Pre trigger0 to 131071 samples, 1 sample resolution
Post trigger0 to 131071 samples, 1 sample resolution
Trigger hold-off0 to 1048576 Samples, 1 sample resolution
Digital external trigger 
InputExtension connector
Range0 to 3.3 V (5 V max)


USB2.0 High Speed (480 Mbit/s)
LAN1 Gbps
Network port (TCPIP and UDP)5450 (IANA assigned)

Power Requirements

PowerFrom USB, external input or built-in battery
Consumption12 VDC 2 A max
External powerFrom power adapter
Internal batteryLi-ion
Capacity7000 mAh, 3.7 V
Weight160 g


Height44 mm (1.7 inch)
Length187 mm (6.7 inch)
Width215 mm (5.2 inch)
Weight791 g (27.9 ounce)

I/O connectors

Channel 1...4Isolated BNC, female
LANRJ45 socket
USBUSB 3.0 type B Super Speed socket
Extension connectorD-sub 25 pins female
Power3.5 mm power socket

System Requirements

PC I/O connectionUSB 2.0, USB 3.0 or USB 3.1
Operating SystemWindows 10 / 11, 64 bits
Linux (via own software using the libtiepie-hw SDK)

Operating Environment

Ambient temperature20°C to 25°C for rated accuracy (10°C to 40°C without specifications)
Relative humidity10 % to 90 %, non condensing
Ambient temperature0°C to 35°C
Relative humidity10 % to 90 %, non condensing
Ambient temperature0°C to 35°C
Relative humidity5 % to 95 %, non condensing

Certifications and Compliances

CE mark complianceYes
EN 55011:2009/A1:2010Yes
EN 55022:2006/A1:2007Yes
EN 61000-6-1:2007Yes
EN 61000-6-3:2007Yes


Convenient carrying caseCarry case BB453
InstrumentWiFiScope WS4 DIFF
Measure leads4 x Measure lead TP-C812B, BNC -> 4 mm banana plug
Differential attenuator4 x Differential attenuator TP-DA10
AccessoriesGround compensation Cable TP-GCC150
Handyscope / WiFiScope power supply
USB3 cable, 1.5 m long
network cable, 3 m long
SoftwareWindows 10 / 11, via website
DriversWindows 10 / 11, via website
Software Development Kitfor Windows 10 / 11 and Linux, via website
Manualinstrument manual and software user's manuals
color printed and digital, via website
Total package weightApprox. 3 kg

Customer service

TiePie engineering instruments are designed, manufactured and tested to provide high reliability. In the unlikely event you experience difficulties, the TiePie engineering instruments are fully warranted for two years.
This warranty includesAll parts and labor (excluding probes and/or measure leads and/or batteries)
Warranty on batteries is 6 months.
No charge for return shipping
Long-term 7 year support
Upgrade to the latest software at no charge
Optionally availableExtension to five year warranty, option W5

The WiFiScope WS4 DIFF is available in 2 different base models:

Order codeMax. sampling speedMax. streaming speed
WS4-DIFF-5050 MSa/s500 KSa/s
WS4-DIFF-2525 MSa/s250 KSa/s

Available options for the WiFiScope WS4 DIFF are:

  • W5: With the extended warranty option, warranty is five years on parts and labor (probes and/or measure leads and/or batteries excluded).
    Without this option, the models have two years warranty on parts and labor (probes and/or measure leads and/or batteries excluded).
    Warranty on batteries is 6 months.

View complete list of all models

The WiFiScope WS4 DIFF is delivered with:

Carry case Carry case BB453
Instrument WiFiScope WS4 DIFF
Measure lead 4x Measure lead TP-C812B, Differential BNC -> 4 mm banana plug
Attenuator 4x Differential attenuator TP-DA10
Accessories Ground compensation Cable TP-GCC150
Handyscope / WiFiScope power supply
USB3 cable, 1.5 m long
network cable, 3 m long
Software for Windows 10 / 11, via website
Drivers for Windows 10 / 11, via website
Software Development Kit for Windows 10 / 11 and Linux, via website
Manuals instrument manual and software user's manuals
color printed and digital, via website
Complete set

Several downloads for the WiFiScope WS4 DIFF are listed below, including Multi Channel oscilloscope software, drivers and manuals.

Driver & Software

WinUSB driver10.0.2Windows 10 / 11, 64 bit1.73 MB download
Multi Channel software1.47.0Windows 10 / 11, 64 bit, including PDF manual103.76 MB download


WiFiScope network module firmware2024-02-20287.31 MB download

Manuals & Documents

Multi Channel software manual 1.11English3.13 MB download
WiFiScope Quick Start GuideEnglish2.55 MB download
WiFiScope WS4 DIFF Instrument manual2.48English1.28 MB download
WiFiScope WS4 DIFF data sheetEnglish2.07 MB download

Software Development Kit (SDK)

Interfacing the WiFiScope WS4 DIFF with third party software and developing own software requires the libtiepie-hw Software Development Kit. Detailed information on the libtiepie-hw SDK, downloads for Windows and Linux platforms and bindings and programming examples for various programming environments can be found in the libtiepie-hw pages.