WaveRunner Xi-A / MXi-A Oscilloscopes

The LeCroy WaveRunner Xi-A is the most powerful and capable scope available in its class. Basic system validation using advanced triggers, fast viewing modes, measurement parameters, or serial decodes is simple and easy. Advanced debug, multi-domain analysis, and waveshape analysis are possible with tools unique to WaveRunner Xi-A. Optional application packages help you make sense of well-defined problems.

Explore WaveRunner Xi-A Explore WaveRunner Xi-A
WaveRunner 204MXi-A   (2 GHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Limited Availability
Quick Specs
Nominal Analog Bandwidth @ Ω 50 10 mV-1 V/div2 GHz
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s
Standard Memory12.5M/25M 10,000
WaveRunner 204Xi-A   (2 GHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Limited Availability
Quick Specs
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s on 4 Ch
10 GS/s on 2 Ch
WaveRunner 104MXi-A   (1 GHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Nominal Analog Bandwidth @ Ω 50 10 mV-1 V/div1 GHz
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s
Standard Memory12.5M/25M 10,000
WaveRunner 104Xi-A   (1 GHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s on 4 Ch
10 GS/s on 2 Ch
WaveRunner 64MXI-A   (600 MHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Nominal Analog Bandwidth @ Ω 50 10 mV-1 V/div600 MHz
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s
Standard Memory12.5M/25M 10,000
WaveRunner 64Xi-A   (600 MHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s on 4 Ch
10 GS/s on 2 Ch
WaveRunner 62Xi-A   (600 MHz Bandwidth, 2 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Input Channels2
Single-Shot Sample Rate/Ch5 GS/s on 2Ch
10 GS/s on 1 Ch
WaveRunner 44MXi-A   (400 MHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Nominal Analog Bandwidth @ Ω 50 10 mV-1 V/div400 MHz
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s
Standard Memory12.5M/25M 10,000
WaveRunner 44Xi-A   (400 MHz Bandwidth, 4 Input Channels, 5 GS/s Max Sample Rate)
Quick Specs
Input Channels4
Single-Shot Sample Rate/Ch5 GS/s on 4 Ch
Check up to three models.
The LeCroy WaveRunner Xi-A is the most powerful and capable scope available in its class. Basic system validation using advanced triggers, fast viewing modes, measurement parameters, or serial decodes is simple and easy. Advanced debug, multi-domain analysis, and waveshape analysis are possible with tools unique to WaveRunner Xi-A. Optional application packages help you make sense of well-defined problems.
Enhanced Understanding of Serial Data Signals

Trigger on I2C, SPI, UART, RS-232, AudioBus (I2S, LJ, RJ, TDM), LIN, CAN, or FlexRay or MIL-STD-1553 serial data patterns. Intuitively decode values on the oscilloscope grid.

Powerful Triggers Isolate Events

An extensive collection of SMART, Serial, and Digital (MS Series) triggers enables users to quickly and easily isolate events of interest (some optional).

WaveStream™ Fast Viewing Mode

Use the high sampling rate and WaveStream fast viewing mode to characterize signal shape, rise time, overshoot, etc., and verify the presence or absence of high-speed transients.

Advanced Acquisition Modes

Sequence Mode allows you to partition your acquisition memory into segments and capture specific events over long periods of time. Then, view and analyze each segment individually.

WaveScan™ Advanced

Search and Analysis WaveScan provides the ability to locate unusual events in a single capture, or scan for an event in many acquisitions over a long period of time using more than 20 different search/scan modes. Use ScanHisto or ScanOverlay to display intuitive scanned results.

Completely Customizable

Quickly create your own measurement parameters or math functions using Excel, MATLAB®, or VBScripts (some capability optional).

Advanced Application Packages

Use a variety of application packages to provide detailed, fast solutions for specific problems.

Fast Long Memory with Front Panel Zoom Controls

WaveRunner Xi-A's long memory is optimized for calculation of more information 10–100x faster than other oscilloscopes, while enabling easy access to simple zooming and positioning from the front panel.

Extensive Math and Measurement Capability

More standard and optional measurements and more powerful math capability are provided with results returned faster than in other oscilloscopes.

Beyond Time Domain Analysis

Amplify your understanding with multidomain analysis of your signals. Convert signal information into Statistical domain (Histogram), Spectral domain (long memory FFTs), Jitter, Modulation, or other Measurement Parameter domains (Tracks of measurement parameters). (Some capability is optional.)

Integrated Tool Sets

LeCroy math, measure, and analysis tools are tightly integrated with basic scope operations. It's easy to link capabilities and expand understanding. Free yourself from constraints!

Complete Probing Solutions

A wide variety of active FET probes, current probes, differential probes, HV probes, etc. with complete tip and ground accessories make it easy to probe your signals.

Mixed Signal Oscilloscope Option

The MS Series can capture digital signals with speeds up to 500 MHz. View up to 36 digital channels with up to 50 Mpts/Ch memory and analyze analog and digital events together.

Power/Amplifier Measurements

Excellent overdrive recovery and signal integrity make WaveRunner Xi-A ideal for high-voltage switching loss, conduction loss, ripple, switching power supply, and other amplifier measurements. Use with LeCroy Differential Amplifiers for highperformance 100,000:1 Common Mode Rejection Ratio.

Timing Characterization

Extensive triggers allow fast event isolation. Measure timing statistically and view behavior graphically using histograms. Gain real understanding of root cause.

Slow/High-speed Signal Mix

Long memory, HFREJ trigger coupling, built-in noise filtering, etc. enable fast understanding of signal behavior in circuits with a mix of slow-speed (sensor, actuator, power supply, mechanical) and high-speed signals.

Main Specifications

Bandwidth 400 MHz - 2 GHz
Starting from $12,500
Standard Memory 12.5 Mpts
Max Memory 12.5 Mpts/ch
Max Sampling Rate 10 GS/s
 

Serial Data Compliance

QPHY-MOST50e
QualiPHY Enabled MOST50 ePHY Compliance Software Option. Requires options DFP2 and SDM or SDA2
QPHY-MOST150o
QualiPHY Enabled MOST150 oPHY Compliance Software Option. Requires options DFP2 and SDM or SDA2
QPHY-BroadR-Reach
QualiPHY Enabled BroadR-Reach Compliance Software Option
QPHY-ENET
QualiPHY Enabled Ethernet 10/100/1000BT Compliance Software Option
QPHY-USB
QualiPHY Enabled USB 2.0 Compliance Software Option
ENET-2ADA-BNCSMA
Adapter Set- 2 BNC/M to SMA/F
ENET-2CAB-SMA018
Cable Set- 2 SMA-SMA 18 inches
ENET-2CAB-SMA036
Cable Set- 2 SMA-SMA 36 inches
ET-PMT
Electrical Telecom Pulse Mask Software;
WRXi-SDM
Serial Data Mask Software Package for WaveRunner Xi Series

Serial Trigger and Decode

WRXi-USB2-HSICbus D
USB 2.0 HSIC Decode Option
CANbus TD
CANbus TD Trigger and Decode Option
CANbus TDM
CAN Bus Trigger, Decode, and Measure/Graph option
WRXi-DigRFV4bus D
DigRF V4 Bus Decode option for WaveRunner Xi series
CANbus TD 5LIC
CAN Bus Trigger and Decoding Package with License to work on 5 oscilloscopes
CANbus TDM-5LIC
CAN Bus Trigger, Decode, and Measure/Graph option with 1 Hardware Kit and 5 SW Licenses
TC1041-OPTO
CAN 1041 Opto-isolated High-speed Trigger Coupler
TC1050-OPTO
CAN 1050 Opto-isolated High-speed Trigger Coupler
TC1054-OPTO
CAN 1054 Opto-isolated Low-speed Trigger Coupler
TC251-OPTO
CAN 251 Opto-isolated High-speed Trigger Coupler (one is included with CANbus TD)
TC5790c-OPTO
CAN 5790c Opto-isolated Single-wire Trigger Coupler
TC10011-OPTO
CAN B10011S Opto-isolated Truck and Bus Trigger Coupler
WRXi-MSO-EMB
Embedded bundle, Includes MS-500-36 with I2C TD, SPI TD, UART TD
WRXI-EMB
Embedded bundle, Includes I2C TD, SPI TD, UART TD
WRXi-1553 TD
MIL-STD-1553 Trigger and decode option for WaveRunner Xi
WRXi-ARINC429bus DSymbolic
ARINC 429 Bus Symbolic Decode option for WaveRunner Xi/Xi-A
WRXi-AudioBus TD
AudioBus trigger and decode for WaveRunner Xi
WRXi-AudioBus TDG
AudioBus trigger, decode, and graph for WaveRunner Xi
WRXi-CANbus TD
CAN Bus Trigger and Decode Option
WRXi-CANbus TDM
CAN Bus Trigger Decode and Measure/Graph Option
WRXi-DigRF3Gbus D
DigRF 3G Bus Decode option for WaveRunner Xi/Xi-A
WRXi-DPHYbus D
D-PHY Bus Decode option for WaveRuner Xi/Xi-A
WRXI-FLEXRAYBUS TD
FlexRay Trigger and Decode Option
WRXi-FlexRaybus TDP
FlexRay Trigger, Decode and Physical Layer Test Option
WRXI-I2CBUS TD
I2C Bus Trigger & Decode Option for WaveRunner Xi Oscilloscopes
WRXI-LINBUS TD
LIN Bus Trigger & Decode Option for WaveRunner Xi Series Oscilloscopes
WRXi-PROTObus MAG
Serial Debug Toolkit - Measure Analyze Graph for WaveRunner Xi/Xi-ACompatible with I2C, SPI, UART, CAN, LIN, FLX, D-PHY, DigRF 3G, DigRF v4, ARINC 429, MIL-STD-1553
WRXi-ProtoSync
Decode Annotation and Protocol Analyzer Software Synchronization Option for WaveRunner Xi/Xi-ACompatible with USB2bus D, SATAbus D, SASbus D, FCbus D
WRXi-SATAbus D
SATA Decode option for WaveRunner Xi/Xi-ASupports SATA Gen 1, 2, and 3.
WRXI-SPIBUS TD
SPI Bus Trigger & Decode Option for WaveRunner Xi Oscilloscopes
WRXi-UART-RS232BUS TD
UART and RS232 Bus Trigger and Decode Option for WaveRunner Xi Oscilloscopes
WRXi-USB2bus D
USB 2.0 Bus Decode option for WaveRunner Xi/Xi-A

Jitter Analysis Software

WRXi-JITKIT
Clock, clock-data Jitter Analysis and views of time, statistical, spectral, and jitter overlay
WRXi-JTA2
Jitter and Timing Analysis Software Package for WaveRunner Xi Series

Miscellaneous

WRXi-SOFTCASE
WRXi Soft Carrying Case
WRXi-HARDCASE
WRXi Hard Carrying Case
WRXi-KYBD
WRXi Keyboard Accessory
WRXi-RACK
WRXi Rack Mount Accessory Kit
WRXi-MS-CLAMP
WRXi Clamp Mounting Stand
WRXi-A-FP-GERMAN
WRXi-A German Front Panel Overlay
WRXi-A-FP-FRENCH
WRXi-A French Front Panel Overlay
WRXi-A-FP-ITALIAN
WRXi-A Italian Front Panel Overlay
WRXi-A-FP-SPANISH
WRXi-A Spanish Front Panel Overlay
WRXi-A-FP-JAPANESE
WRXi-A Japanese Front Panel Overlay
WRXi-A-FP-KOREAN
WRXi-A Korean Front Panel Overlay
WRXi-A-FP-CHNES-TR
WRXi-A Chinese (Traditional) Front Panel Overlay
WRXi-A-FP-CHNES-SI
WRXi-A Chinese (Simplified) Front Panel Overlay
WRXi-A-FP-RUSSIAN
WRXi-A Russian Front Panel Overlay

Other Software Options

WRXi-SPECTRUM
Spectrum Analyzer and Advanced FFT Option for WaveRunner Xi Series
WRXi-EMC
EMC Pulse Parameter Package
WRXi-STAT
Histogram and Statistical Analysis Pkg.
WRXi-XMATH
Advanced Math Software Package for WaveRunner Xi Series
WRXi-XDEV
Advanced Customization Software Package for WaveRunner Xi Series
WRXi-XMAP
WRXi Master Analysis Package (XMATH+XDEV+JTA2)
WRXi-XWAV
WRXi Intermediate Math Package
WRXi-XVAP
Value Analysis Software Package (includes XWAV and JTA2) for WaveRunner Xi Series
WRXi-XWEB
Processing Web Editor Software Package for Functions and Parameters for WaveRunner Xi Series

Data Storage Software

WRXi-AORM
Advanced Options Record Measurement Package
WRXi-DDM2
Disk Drive Measurement Software Package for WaveRunner Xi Series

Remote Control/Network Options

USB2-GPIB
External USB 2.0 to GPIB IEEE 488.2 adapter

Power Analysis Software

WRXi-PMA2
PowerMeasure Analysis Software Package for WaveRunner Xi Series

Digital Filtering Software

WRXi-DFP2
Digital Filter Software Package for WaveRunner Xi Series

Mixed Signal Solutions

MS-500
500 MHz, 18 Channels, 2 GS/s, 50 Mpts/ch Mixed Signal Oscilloscope Option
MS-500-36
250 MHz,36 Ch,1 GS/s,25 Mpts/ch (500MHz,18 Ch,2 GS/s,50 Mpts/ch Interleaved) Mixed Signal Option
MS-250
250 MHz, 18 Channels, 1 GS/s, 10 Mpts/ch Mixed Signal Oscilloscope Option

Mixed Signal Accessories

PK400-1
Large Gripper Probe Set for 0.10 inch (2.54mm) pin pitch. Includes 10 probes with color coded leads
PK400-2
Medium Gripper Probe Set for 0.04 inch (1.0mm) pin pitch. Includes 10 probes with color coded leads
PK400-3
Small Gripper Probe Set for 0.008 inch (0.2 mm) pin pitch. Includes 10 probes with color coded leads
MSO-MICTOR
36 Channel Mictor Connector for MS Series (Includes 1 MSO-MICTOR-SHROUD)
MSO-3M
18 Pin 3M Interface cable MSO-3M (Mates with 3M part number 2520-6002)
MSO-DLS-36
16" Digital Lead Set, D18-D35
MSO-MICTOR-SHROUD
Shroud for MSO-MICTOR connector, Kit of 3

Serial Data Test Fixtures

TF-ENET-B
10/100/1000BaseT Ethernet Test Fixture
TF-ET
Electrical Telecom Adapters
TF-USB-B
USB 2.0 Compliance Test Fixture

Active Voltage Probes

ZS2500
2.5 GHz, .9 pF, 1 MOhm Active Voltage Probe
ZS1500
1.5 GHz, .9 pF, 1 MOhm Active Voltage Probe
ZS1000
1 GHz, .9 pF, 1 MOhm Active Voltage Probe
ZS2500-QUADPAK
Set of 4 ZS2500, 2.5 GHz High Impedance Active Probes
ZS1500-QUADPAK
Set of 4 ZS1500, 1.5 GHz High Impedance Active Probes
ZS1000-QUADPAK
Set of 4 ZS1000, 1 GHz High Impedance Active Probes
HFP2500
2.5 GHz, 0.7pF Active Voltage Probe(10:1), Small Form Factor
HFP1500
1.5 GHz, 0.7pF Active Voltage Probe(10:1), Small Form Factor
HFP1000
1 GHz, 0.7pF Active Voltage Probe(10:1), Small Form Factor

Current Probes

CP030
30A, 50MHz Current Probe
CP031
30A, 100MHz Current Probe
AP015
30 A, 50 MHz Current Probe - AC/DC, 30 A rms, 50 A Peak Pulse
CP150
150 A, 10 MHz Current Probe - AC/DC, 150 A rms, 500 A Peak Pulse
CP500
500 A, 2 MHz Current Probe - AC/DC, 500 A rms, 700 A Peak Pulse
DCS015
Deskew Calibration Source for AP015

Differential Amplifiers

DA1855A
1 Ch, 100 MHz Differential Amplifier with Precision Voltage Source
DXC100A
÷100 or ÷10 Selectable, 250 MHz Passive Differential Probe Pair
DXC200
÷1, 50 MHz, Passive Differential Probe Pair
DXC-5100
100:1 250 MHz 10 Mohm 2.75pf Differential Probe Pair;
DA101
10:1 1 MOhm Passive Attenuator
DA1855A-PR2
2 Ch, 100 MHz, Differential Amplifier with Precision Voltage Source
DA1855A-PR2-RM
2 Ch, DA1855A with Rackmount (must be ordered at time of purchase, no retrofit)
DA1855A-RM
DA1855A with rackmount;

Differential Probes

WL-Pbus
WaveLink ProBus Platform/Cable Assembly Kit for 4 GHz WaveLink Probes. Includes ProBus Probe Body(attaches Differential Amplifier Small Tip Module and Tip/Lead to LeCroy Oscilloscope ProBus Input),FreeHand Probe Holder, Platform Clamp, Probe Characterization Fixture, Qty. 2 Cable Clamps, Plastic
D300A-AT
WaveLink D300 3 GHz/4.8Vp-p Differential Amplifier Module with Adjustable Tips. 5.8 mVrms (typical)probe + scope noise.Includes Manual and Quick Reference Guide.
D420
WaveLink D420 4 GHz/5Vp-p and +/-3V Offset Range Differential AmplifierSmall Tip Module with Solder-in, Quick Connect, and Square Pin Lead Sets, plus accessories.
D410
WaveLink D410 4 GHz/2.5Vp-p and +/-3V Offset Range Differential AmplifierSmall Tip Module with Solder-in, Quick Connect, and Square Pin Lead Sets, plus accessories.
D320
WaveLink D320 3.5 GHz/5Vp-p and +/-3V Offset Range Differential AmplifierSmall Tip Module with Solder-in, Quick Connect, and Square Pin Lead Sets, plus accessories.
D310
WaveLink D310 3.5 GHz/2.5Vp-p and +/-3V Offset Range Differential AmplifierSmall Tip Module with Solder-in, Quick Connect, and Square Pin Lead Sets, plus accessories.
D420-PT
WaveLink D420 4 GHz/5Vp-p and +/-3V Offset Range Differential Amplifier Small Tip Module w/Dx20-PTAdjustable Positioner Tip. 4.8 mVrms (typical) probe + scope noise. Includes XYZ Positioner Ass'ywith Mechanical Interconnects, Adhesive Kit, Connection Guides, Hand-held Wand, and Replacement Pins
D410-PT
WaveLink D410 4 GHz/2.5Vp-p & +/-3V Offset Range Differential Amplifier Small Tip Module w/Dx10-PTAdjustable Positioner Tip. 2.8 mVrms (typical) probe + scope noise. Includes XYZ Positioner Ass'ywith Mechanical Interconnects, Adhesive Kit, Connection Guides, Hand-held Wand, and Replacement Pins
D320-PT
WaveLink D320 3.5 GHz/5Vp-p and +/-3V Offset Range Differential Amplifier Small Tip Module w/Dx20-PTAdjustable Positioner Tip. 4.8 mVrms (typical) probe + scope noise. Includes XYZ Positioner Ass'ywith Mechanical Interconnects, Adhesive Kit, Connection Guides, Hand-held Wand, and Replacement Pins
D310-PT
WaveLink D310 3.5 GHz/2.5Vp-p & +/-3V Offset Range Differential Amplifier Small Tip Module w/Dx10-PTAdjustable Positioner Tip. 2.8 mVrms (typical) probe + scope noise. Includes XYZ Positioner Ass'ywith Mechanical Interconnects, Adhesive Kit, Connection Guides, Hand-held Wand, and Replacement Pins
ZD1500
1.5 GHz, 1.0 pF Active Differential Probe, ±8 V
ZD1000
1 GHz, 1.0 pF Active Differential Probe, ±8 V
ZD500
500 MHz, 1.0 pF Active Differential Probe, ±8 V
ZD200
200 MHz, 3.5 pF, 1 MOhm Active Differential Probe, ±20 V
Dx20-PT-KIT
WaveLink Dx20-PT Adjustable Positioner Tip Kit. Includes XYZ Positioner Assembly with MechanicalInterconnects, Adhesive Kit, Connection Guides, Hand-held Wand, and Replacement Pins(Qty. 4)/Sockets(Qty. 2).
Dx10-PT-KIT
WaveLink Dx10-PT Adjustable Positioner Tip Kit. Includes XYZ Positioner Assembly with MechanicalInterconnects, Adhesive Kit, Connection Guides, Hand-held Wand, and Replacement Pins(Qty. 4)/Sockets(Qty 2).
AP034
1 GHz, Active Differential Probe (÷1, ÷10, ÷20)
AP033
500 MHz Differential Probe

High Voltage Probes

PPE1.2KV
10:1/100:1 200/300 MHz 50 MOhms High-Voltage Probe 600V/1.2kV Max. Volt. DC
PPE2KV
100:1 400 MHz 50 MOhms High-Voltage Probe
PPE4KV
100:1 400 MHz 50 MOhms High-Voltage Probe
PPE5KV
100:1 400 MHz 50 MOhms High-Voltage Probe
PPE6KV
1000:1 400 MHz 5 MOhms/50 MOhms High-Voltage Probe
PPE20KV
1000:1 100 MHz 100 MOhms High-Voltage Probe 20kV Max. Volt. DC + 40kVPeak AC

High Voltage Differential Probes

AP031
700 V, 15 MHz High-Voltage Differential Probe (÷10, ÷100)
ADP300
1,400 V, 20 MHz High-Voltage Differential Probe
ADP305
1,400 V, 100 MHz High-Voltage Differential Probe

Optical Probes

OE425
Optical-to-Electrical Converter, 500-870 nm ProBus BNC Connector
OE455
Optical-to-Electrical Converter, 950-1630 nm ProBus BNC Connector

Probe Parts and Kits

PACC-ZD001
Y lead Adapter for ZD differential probesQty 1
PACC-ZD002
Solder-in lead for ZD differential probeQty 2
PACC-ZD003
Long spring ground for ZD differential probeQty 2
PACC-ZD004
Tip saver for ZD differential probeQty 2
PACC-ZD005
Swivel tip adapter for ZD differential probeQty 1
PACC-ZD006
Small IC adapter for ZD differential probeQty 2
PK111
Replacement Accessory kit for ZD500, ZD1000, and ZD1500
PCF-200
Probe Deskew Fixture
Dxx0-Cable-HiTemp
Replacement 30" matched cable set for use with HiTemp Solder tip leadset
Dx20-SP
Replacement Square Pin lead set for D320/D620
Dx20-SI
Replacement Solder tip lead set for D320/D420/D620
Dx20-SI-HiTEMP
Replacement Solder tip leadset for use with D620/D320 and temperature extension cables
Dx20-QC
Replacement Quick Connect lead set for D320/D620
Dx20-PT
Replacement Dx20-PT Tip with Qty. 4 Pogo Pin Tips and Qty. 2 Sockets
Dx20-HiTEMP
WaveLink Temperature Extension cables for Dx20.Includes 1 set of matched 30" high temperature cables, 1 solder tip lead set
Dx10-SP
Replacement Square Pin lead set for D310/D610
Dx10-SI
Replacement Solder tip lead set for D310/D410/D610
Dx10-SI-HiTEMP
Replacement Solder tip leadset for use with D610/D410 and temperature extension cables
Dx10-QC
Replacement Quick Connect lead set for D310/D610
Dx10-PT
Replacement Dx10-PT Tip with Qty. 4 Pogo Pin Tips and Qty. 2 Sockets
Dx10-HiTEMP
WaveLink Temperature Extension cables for Dx10.Includes 1 set of matched 30" high temperature cables, 1 solder tip lead set

Transmission Line Probes

PP065
100:1 1 GHz 5 KOhms Passive Probe