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The Whole Shop
Timing and
Synchronization
Oscilloscopes
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instruments
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Energy
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and Instruments
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EMC
Transient and Ripple Test
Transient and Ripple Test
83 Items
Download Haefely EMC Product Catalog
(19 Items)
ESD Test
(20 Items)
EFT/Burst Test
(19 Items)
Surge Test
(8 Items)
Ringwave Test
(6 Items)
Telecom Wave Test
(24 Items)
Voltage DIP Test
(4 Items)
Ripple Test
Home
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My Account
Create new account
Newsletter-Subcription
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About 4Test
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Demo Equipment
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To use our Shop Cosmo in full, we recommend you to activate javascript in your browser.
Timing and
Synchronization
Time and NTP Servers
Timing and Distribution Boards and Modules
Accessories
Time/Frequency References, Nodes and Oscillators
Oscilloscopes
Keysight Oscilloscopes
up to 200 MHz
Oscilloscopes
Options and Upgrades
Probes and Acessories
Keysight Oscilloscopes
100 MHz to 1 GHz
Keysight HD3 Oscilloscopes and Upgrades
Keysight Oscilloscopes
3000 and 4000 Series
Keysight 3000/4000 Series
Options and Upgrades
Probes and Adaptors
Keysight Oscilloscopes
1 GHz to 8 GHz
MXR and EXR Oscilloscopes
6000-X and S-Series Oscilloscopes
Compliance software and hardware
Protocol Decodes
Other Applications
Probes and Accessories
Bandwidth and MSO Upgrades
Keysight Oscilloscopes
8 GHz to 110 GHz
Oscilloscopes
Compliance software and hardware
Protocol Decodes
Other Applications
Probes and Accessories
Siglent Oscilloscopes
HD Oscilloscopes and Options
Siglent Oscilloscope Accessories
Other Siglent Oscilloscopes
GWINSTEK Oscilloscopes
Micsig Probes and Oscilloscopes
Micsig Oscilloscopes
Oscilloscope Probes
Rohde & Schwarz Oscilloscopes
Accessories
Probes and Probe Accessories
Oscilloscopes
Memory and Bandwidth Upgrades
Licensed-extensions
Modular Oscilloscopes
PXI Oscilloscopes
Probes and Acessories
Sampling oscilloscopes
Instruments and Modules
Software and Accessories
Handheld
Oscilloscope Probes
Passive probes
Current probes
Active Probes < 10 GHz
Active Probes >10 GHz
Medium-High Voltage Differential Probes
Accessories
General
instruments
Handheld Products
Digital Multimeters
Oscilloscopes
LCR Meters
Clamp Meters
Other Handheld Testers
Accessories
Meters, Counters and Analyzers
Digital Multimeters
LCR Meters
Impedance Analyzers
Audio Analyzers
Resistance Testers
Safety Test (HI-Pot), Ground Bond and Leakage Test
Counters
Function Generators and Sources
Function Generators
Source Measure Units
Data Acquisition, Recorders and Current Probes
LXI Instruments
LXI Modules and Accessories
Data Loggers
Data Recorders
Current probes
Accessories, IO and Fixtures
IO products
Accessories
LCR Meter and Impedance Analyzer Fixtures
Rack kits
Software
Power and
Energy
Systems and Solutions
DC Power Supplies
DC Power Supplies < 100 W
DC Power Supplies 100-300 W
DC Power Supplies 300-1000W
DC Power Supplies 1 - 3 kW
DC Power Supplies 3-10 kW
DC Power Supplies >10 kW
DC Supplies w Multiple Outputs
DC Power Supplies Modular
Rohde & Schwarz Power Supplies
Electronic DC Loads
DC eLoads 0-1000 W
DC eLoads 1000 W to 10 kW
DC eLoads > 10 kW
Modular DC eLoads
Combined DC Supplies and Loads
Combined Units < 1kW
Combined units 1-10kW
Combined Units >10kW
AC Supplies, Loads and Grid Simulators
AC/DC Power Supplies 0-5000 VA
AC/DC Power Supplies > 5 kVA
AC eLoads
Grid Simulators
AC / DC Power and Device Analyzers
Power Analyzers
Hioki Power Analyzers and Loggers
Powerside AC Power Analyzers
Power Device Analyzers
Power Sensors
Hioki Precision Power Sensors
Danisense Power Sensors
Safety and Battery Test
Battery Cell Test
Charge/Discharge Test
High Power Battery Test
Safety Test (HI-Pot), Ground Bond and Leakage Test
Power Amplifiers
Solar Array Simulator
Software Solutions
Accessories
RF/μW Solutions
and Instruments
RF/uW System Solutions
Spectrum and Signal Analyzers
Desktop Analyzers
Portable Analyzers
Modular Analyzers
Accessories
Cellular and Wireless Software
General Purpose Software
Siglent Analyzer Options and Accessories
Network Analyzers
ENA Vector Network Analyzers
PNA Vector Network Analyzers
Portable Analyzers
Vector Component Analyzers
Rohde & Schwarz Network Analyzers
Siglent Vector Network Analyzers
Siglent VNA Instruments
Siglent Network Analyzer Accessories
Modular Analyzers
Network Analyzer Software
Software for ENA and ENA-X
Software for PNA
PNA-X and PNA-L
Software for
Streamline A and B-Series
Calibration Kits
Other Accessories
Signal Generators
RF/μW Benchtop Generators
RF/μW Modular generators
RF/μW Portable Generators
Software and Accessories
Frequency Synthesizers
Impedance Analyzers
Impedance Analyzers
Impedance Fixtures
Bode 100 Accessories
RF/μW AWG's and Transceivers
Desktop AWG's and Transceivers
Modular AWG's and Transceivers
Wireless and Antenna test systems
Wireless and IoT test
Antenna Test and Test Chambers
RF Network Mobility (Drive Test)
Channel Emulators
RF Recorder/Player
Other Analyzers and Power Meters
Power meters and Analyzers
Power Sensors
USB and LAN Power Sensors
Noise Analyzers and Sources
Rohde & Schwarz Power Meters and RF Accessories
Handheld RF/μW Products
RF/μW amplifiers
Pre-Amplifiers
System Amplifiers
RF/μW software
GNSS/GPS Simulation
E&H Field Monitors, Probes and Instruments
EMF Meters and Monitors
E&H Field Probes
Personal EMF Monitors
EMC Probes
Sniffers
Microwave Test Accessories
RF and uW Probes
Switches and Drivers
Attenuators, Limiters and DC-blocks
Coax and Waveguide Adapters, Detectors and Loads
Bridges, Splitters, Couplers and Dividers
Coax and Waveguide Mixers and Converters
EMC
Receivers and Software
Receivers
Software
Raditeq EMC Solutions
RadiMation® EMC Software and Support
Raditeq EMC Bundles
RadiSense® Probes and Probe Sets
Raditeq GTEM Cells
RadiAmp® Amplifiers
RadiSwitch® Switches
RadiPower® Power Meters
RadiField® Electric Field Generators
RadiCentre® and Modules
RadiLink® and Accessories
Antennas
Biconical
Biconilog
Horn
Dipol and Bicon
Accessories
Transient and Ripple Test
ESD Test
EFT/Burst Test
Surge Test
Ringwave Test
Telecom Wave Test
Voltage DIP Test
Ripple Test
Scanners, Probes LISN, and Accessories
Field Probes
Sniffers
Current Probes
EMC Scanners
LISN and Accessories
Cameras
Chambers & GTEM cells
Absorber
RF Shielding
Amplifiers
Thermography
R&D and Laboratory
Handheld Thermal and Acoustic Cameras
Automation and Safety
Thermography Software
Digital Thermometers
DACQ Temperature
Solutions, EDU
and Resources
Wireless and IoT
Antenna Test and Test Chambers
5G Device Test Solutions
Wireless Manufacturing Test Platforms
Wireless Channel Emulators
RF Network Mobility (Drive Test)
RF Recorder/Player
Power and Energy
Battery Charge/Discharge and BMS
Charging Infrastructure Test
Power Test Tools
Grid Simulators
Powerside AC Power Analyzers
Power Device Analyzers
Network Test and Visibility
Network and Cloud Test
Network Security + Visibility
Coherent Transmission Test
Optical and Photonic
Quantum Computing
Education and Training
RF-uW Courseware
Keysight Smart Bench Solutions
University Projects
Software
Solutions
Automation and Control
Automation Software
Power and Device Test
EMC and Antenna Software
Design and Simulation
RF/μW Design and Simulation Software
Power Electronics Software
Instrument Applications
InfiniiVision Oscilloscope Applications
Infiniium Oscilloscope Applications
Signal Analyzer Applications
Signal Generator Applications
Network Analyzer Applications
Siglent Software
Libraries, Drivers and Programming Tools
Education and Training
PXI and
Modular
Chassis and Controllers
PXI and AXI Chassis
Controllers
RF and Microwave
Signal Analyzers
Signal Sources
Network Analyzers
Vector Transceivers
Switches, Attenuators and Amplifiers
PXI/AXI Switching and Digital IO
Switches, MUX's and Matrixes
Digital Test
DMMs, Oscilloscopes and Digitizers
Oscilloscopes
Digital Multimeters
General Purpose Digitizers
High Speed Digitizers
Sources, DAC's and Generators
AWG and Function Generators
High Speed AWG's
Other Sources
Amplifiers
Timing and Distribution Boards
Data Loggers, Controllers and LXI Switch Measure Units
LXI Instruments
LXI Modules and Accessories
Data Loggers
Data Recorders
Current probes
USB Modular Products
Data Loggers
RF/μW Solutions
Digitizers and Switches
PCI and PCIe measurement and control cards
Software
Network, Digital
Transmission
Network Test
Network Security + Visibility
Pulse Generators, BERT, Logic and Protocol Test
Pulse/Pattern Generators + BERT
Logic Analyzers
Protocol Analyzers and Exercisers
Function Generators, High Speed AWG's and Coherent Transmission Test
Coherent Transmission Test
Function and AWG Generators
High Speed AWG's
Optical Instruments
Sampling oscilloscopes
Optical Sources
Optical Attenuators and Switches
Optical Power Meters
Other Optical Instruments
Signal Amplifiers
