Handyscope TP450 USB power quality analyzer

A USB power quality analyzer with a galvanically isolated input

Base price:  141.00

Key specifications

  • Galvanically isolated differential input range up to 450 V
  • 16 bit resolution, 0.5 % DC vertical accuracy
  • Up to 250 kSa/s sampling, 200 kHz bandwidth
  • Up to 250 kSa/s, 16 bit continuous streaming
  • Up to 1 Mpoints memory

Full specifications Manual Request info

Base model:
  • Handyscope TP450-250
  • Handyscope TP450-50

Order code:

Plug in directly to the mains

The Handyscope TP450 is a power quality analyzer, connected via USB to the computer. The advanced measurement software delivered by default contains Quick Setups that allow to start mains power logging measurements without specialized instrument knowledge. With the 450 V input range, the Handyscope TP450 can be plugged directly in a (110 - 230 V) wall socket to measure the mains voltage. No additional attenuator is required.

Directly measure the outlet

High speed, high resolution logging

Logging mains voltage can be done at a high rate of 250 thousand measurements per second, with a resolution of 16 bit, which is equal to a 5½ digit voltmeter. The Handyscope TP450 is an accurate voltmeter, but one that performs 5000 measurements on each cycle of the mains voltage, while a standard voltmeter performs 3 measurements per second. Even with the very high measurement rate of the Handyscope TP450, the mains voltage can be measured continuously for weeks, and afterwards each period of the mains voltage can be analyzed thoroughly. Using this fast continuous measuring method, no voltage peak or dip is missed, even if it lasts just a msec. The maximum measuring duration of the mains voltage is only limited by the available hard disk space. Measuring one week takes approximately 0.69 GB disk space. During a measurement, also RMS value and frequency are logged. It is possible to measure various properties, like e.g. Minimum, Maximum, Peak to peak, Mean, Variance, Standard deviation.

After logging, the scrolling through the data is easily done. The measured signal can be zoomed in up to showing one single period of the mains voltage on the display. Obviously, zooming also allows to view the changes of the mains voltage over a longer period of time.

Directly measure the outlet

Special low noise differential measure lead

The Handyscope TP450 can also measure lower voltages, making it easy to log 24 Volt systems or capture switch patterns of control systems. In order to perform these measurements, a special measure lead is included with a connection at one side that plugs on the 230 V wall plug connector and 4 mm banana plugs at the other end, at which test probes can be placed.

With this measure lead standard measurements can be conducted at electrical signals. Using the many Quick Setups removes the need of setting up the instrument (saving much time) and all focus can be directed to the measurement itself. Besides the advanced data logger of the Handyscope TP450, it can also be used as spectrum analyzer, voltmeter and protocol analyzer and obviously as standard oscilloscope (with limited maximum sampling rate of 250 kSa/s).

Measure lead TP-C812C

Measuring three phases

When production machines exhibit strange outages and the mains voltage is suspected, a three phase mains voltage analysis is easily conducted using three Handyscope TP450s. By incorporating a three phase current distributor with pass through option, three Handyscope TP450s can measure the voltage of each phase. After a measurement session of e.g. a week, or when the production machine exhibits an outage, the mains voltage can be analyzed, even each period individually. And when required, precautions can be taken to reduce the mains voltage pollution.


  • 1 phase, but also multiple phases of the mains voltage can be measured for a long time
  • Each individual period of the mains voltage can be accurately analyzed. Fast peaks or dips are measured accurately
  • No specialized knowledge required. Using the Quick Setup a measurement can be started immediately
  • Initial purchasing price can be kept low, by starting with one phase measurements and expanding to three phase measurements later.
  • Fully optically isolated, providing completely safe measurements and connection errors are excluded
  • High resolution of 16 bit.

Versatile Multi Channel oscilloscope software

The Handyscope TP450 is delivered with the versatile Multi Channel oscilloscope software, which transforms the Handyscope TP450 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...

24/7 Data logging

Measuring long term signal changes with your Handyscope is done with the Multi Channel oscilloscope software Data logger. The data logger logs your signal, continuously uninterrupted at high speed, 24 hour a day, 7 days a week. Results are immediately shown on the screen and all data can be stored to disk. A convenient toolbar lets you navigate through the stored files to find the important moments in the measurement.

Read more on the Data logger...


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...

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...

More features

To discover more features of the comprehensive Multi Channel oscilloscope software for your Handyscope TP450, visit the Multi Channel oscilloscope software pages for a full description.

Handyscope TP450 specifications

The tables below show detailed specifications of the Handyscope TP450 high voltage oscilloscope. Jump to acquisition specifications, trigger specifications or general specifications.

Acquisition system

Input channel1
Typegalvanically isolated, differential
Ranges (full scale)±2 V
±4 V
±8 V
±20 V
±40 V
±80 V
±200 V
±400 V
±450 V
Resolution (depending on input range)2 V : 10.7 bit
4 V : 11.7 bit
8 V : 12.7 bit
20 V : 14 bit
40 V : 15 bit
80 V : 16 bit
200 V : 14.8 bit
400 V : 15.8 bit
450 V : 16 bit
Amplitude accuracy0.5 % of full scale
Impedance1 MOhm // 20 pF
Maximum input voltage (in all ranges)600 V CAT II (DC + AC peak, < 10 kHz)
Maximum Common Mode voltage600 V in all ranges
Galvanic isolation 
between input and USB port5000 Vrms for 1 minute
 Handyscope TP450-250Handyscope TP450-50
Bandwidth (-3dB)200 kHz25 kHz
Sampling rateHandyscope TP450-250Handyscope TP450-50
block mode 
maximum250 kSa/s50 kSa/s
minimum1 Sa/s1 Sa/s
streaming mode 
maximum250 kSa/s50 kSa/s
minimum1 Sa/s1 Sa/s
Sampling clock sourceinternal
Accuracy±25 ppm
Memorystandard modelXM option
 16384 points1048576 points
Systemdigital, 2 levels
 Handyscope TP450-250Handyscope TP450-50
Trigger modesRising edge
Falling edge
Inside window
Outside window
Rising edge
Falling edge

Level adjustment0 to 100 % of full scale
Hysteresis adjustment0 to 100 % of full scale
Resolution0.025 % (16 bits)
Pre trigger0 to selected record length, 1 sample resolution
Post trigger0 to selected record length, 1 sample resolution


InterfaceUSB 2.0 High Speed (480 Mbit/s); (USB 1.1 Full Speed (12 Mbit/s) and USB 3.0 compatible)

Power Requirements

Power from USB port100 mA max (0.5 W max)


Instrument height70 mm (2.75 inch)
Instrument length72 mm (2.83 inch)
Instrument width42 mm (1.65 inch)
USB cable length3 m (118 inch)
Weight160 g (5.6 ounce)

I/O connectors

Channel 1slide contacts with removable adapters for EU, US, AU and UK mains wall sockets
USBfixed cable with USB 2.0 type A connector

System Requirements

PC I/O connectionUSB
Operating SystemWindows 10 / 11

Operating Environment

Ambient temperature20 to 25 °C (10 to 40 °C without specification)
Relative humidity10 to 90 % non condensing
Altitude< 2000 m

Storage Environment

Ambient temperature-20 to 70 °C
Relative humidity5 to 95 % non condensing

Certifications and Compliances

CE mark complianceYes


InstrumentHandyscope TP450
Test leadMeasure lead TP-C812C
AccessoriesTest Probe TP-TP90
2 x Alligator Clip TP-AC80I, red and black
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 manuals
color printed on paper and digital, via website

The Handyscope TP450 USB power quality analyzer is available in two models that distinguish in maximum sampling rate:

Order codeMax. sampling speed
TP450-5050 KSa/s
TP450-250250 KSa/s

Available options for the Handyscope TP450 are:

  • XM: With the extended memory option, 1 MSamples memory is available. Without this option, the models have 16 kSamples memory.
  • W5: With the extended warranty option, warranty is five years on parts and labor. Without this option, the models have two year warranty on parts and labor.

View complete list of all models

The Handyscope TP450 USB power quality analyzer comes in a package containing the following items:

Instrument Handyscope TP450
Measure lead Measure lead TP-C812C
Aligator clips Alligator Clip TP-AC80I, red and black
Test probe Test Probe TP-TP90
Accessories Mains plug adapter for (Europe, North America, Australia and the United Kingdom)
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 Handyscope TP450 USB power quality analyzer 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

Manuals & Documents

Multi Channel software manual 1.11English3.13 MB download
Handyscope TP450 Instrument manual2.38English564.21 kB download

Software Development Kit (SDK)

Interfacing the Handyscope TP450 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.