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Browse a comprehensive range of professional test and measurement equipment at TT Instruments, your trusted source for high-quality fibre optic, telecommunications, RF, and electronic testing solutions. Our full collection includes everything from OTDRs, optical spectrum analysers, and fusion splicers to power meters, inspection scopes, and optical loss test sets, all sourced from leading manufacturers such as Viavi Solutions, EXFO, Fluke Networks, Fujikura, and Keysight Technologies. At TT Instruments, we specialise in supplying professionally tested, cost-effective used equipment that supports installation, maintenance, and troubleshooting across fibre optic and electronic networks, helping engineers and businesses achieve accurate, reliable results with equipment they can trust.

Keysight N5442A Precision BNC 50 Ohm Adapter front view showing model label, Input 50Ω marking and gold BNC connector

Keysight N5442A BNC Adapter side view showing serial number MY55C33240 label, gold precision BNC input and AutoProbe I pin connector

Keysight N5442A Precision BNC Adapter For Infiniium 90000-X, V & Z-Series

Model: N5442A

Manufacturer: Keysight

In stock: 1

SKU: 3928 6D04

Condition: Used

Price: Sale price £505.75

LEM PR150/SP1 clamp current probe 150A front view with output cable and 9V EU AC adapter

LEM PR150/SP1 probe rear panel showing ZERO button, POWER ON LED, BNC output jack and coiled output cable

LEM Res (Dranetz) PR150/SP1 Clamp Current Probe 150A 10 mV/A

Model: PR150/SP1

Manufacturer: LEM

In stock: 2

SKU: 3877 7D02

Condition: Used

Price: Sale price £106.25

Tektronix CL200 AEMC MN213 AC current clamp probe front view with red jaw, output label, and coiled lead

Tektronix CL200 AEMC MN213 rear label showing INPUT 0.5 to 200Arms, CE, UL Listed E192383, Made in USA

Tektronix CL200 (AEMC MN213) AC Current Clamp Probe 240A For Power Analyzers

Model: CL200

Manufacturer: Tektronix

In stock: 1

SKU: 3878 7E02

Condition: Used

Price: Sale price £34.00

HP 8493C 3dB DC-26.5GHz coaxial fixed attenuator shown with two red protective SMA end caps removed

HP 8493C attenuator side label showing Hewlett Packard branding, serial number B15931B and model 8493C

HP 8493C RF Fixed Attenuator 3 dB DC-26.5 GHz

Model: 8493C

Manufacturer: HP

In stock: 2

SKU: 7987 6C03

Condition: Used

Price: Sale price £80.75

Pasternack PE8709 bandpass filter front view showing label with P/N, 1920–1980 MHz range and D.C. 1601 date code

Pasternack PE8709 bandpass filter rear view showing black anodised housing with red SMA dust caps on both ports

Pasternack PE8709 4 Section Bandpass Filter 1920-1980 MHz 60 MHz Passband

Model: PE8709

Manufacturer: Pasternack

In stock: 3

SKU: 3989 7D04

Condition: Used

Price: Sale price £63.75

Keysight 10075A 0.5mm IC Clip Accessory Kit with user's guide, dual-lead adapters and colour-coded IC clips

Keysight 10075A kit contents: dual-lead adapters in sealed bag and teal/yellow 0.5mm IC clips in storage case

Keysight N4822A Socketed Tip for Application Fixtures

Model: N4822A

Manufacturer: Keysight

In stock: 2

SKU: 3986 7D04

Condition: Used

Price: Sale price £34.00

Pasternack PE8709 4 Section Bandpass Filter 1920-1980 MHz 60 MHz Passband

Pasternack PE8709 4 Section Bandpass Filter 1920-1980 MHz 60 MHz Passband

Pasternack PE8709 4 Section Bandpass Filter 1920-1980 MHz 60 MHz Passband

Model: PE8709

Manufacturer: Pasternack

In stock: 4

SKU: 3990 4E03

Condition: Used

Price: Sale price £34.00

Keysight 82350B PCI-GPIB interface card angled view showing bracket label, GPIB connector and PCI edge

Keysight 82350B PCI-GPIB card PCB top side showing Xilinx Spartan FPGA, board label 82350-26512 REV001

Keysight 82350B PCI-GPIB

Model: 82350B

Manufacturer: Keysight

In stock: 1

SKU: 3988 7D04

Condition: Used

Price: Sale price £63.75

Viavi MTS 2000 V2 OCC-4056C DWDM analyser with soft carry case, AC adapters, adapter pouch, and stylus

Viavi OCC-4056C 2331/12 DWDM optical channel checker technical specifications datasheet

Viavi MTS 2000 V2 + OCC-4056C 2331/12 Optical Channel Checker APC DWDM Analyzer

Model: MTS 2000 V2 & OCC-4056C

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3921 6E03

Condition: Used

Price: Sale price £1,525.75

Viavi 2330/34 MPO OLTS full kit — MPOLS-84P, MPOLP-85P, 2x P5000i scopes, adapters, bag, cleaners

Viavi MPOLS-84P and MPOLP-85P front panel view showing 3.5-inch touchscreen and keypad controls

Viavi 2330/34 MPO Optical Loss Test Set MM Tier 1 Certification LS PM + Scope

Model: MPOLP-85P MPOLS-84P P5000i

Manufacturer: Viavi JDSU

In stock: 1

SKU: 4016 3A02

Condition: Used

Price: Sale price £3,395.75

Berlebach Report 2022HL EMV ash wood tripod fully extended, front three-quarter view, black knobs visible

Berlebach Ash Wood-tripod Report 2022HL original retail box showing product name, specs and barcode

Berlebach Mulda Ash Wood-tripod Report 2022HL EMV 12021HL

Model: 2022HL

Manufacturer: Berlebach

In stock: 5

SKU: 4010 5F01

Condition: New Other

Price: Sale price £106.25

Rohde & Schwarz NRT-Z2 10 m extension cable 1081.2505.10 coiled in sealed antistatic bag with Gerätkarte device card

Rohde & Schwarz NRT-Z2 Gerätkarte device card showing part number 1081.2505.10 and 10 Meter Verlängerungskabel

Rohde & Schwarz NRT-Z2 10 m Extension Cable For NRT2 Power Reflection Meter

Model: NRT-Z2

Manufacturer: Rohde & Schwarz

In stock: 10

SKU: 3860 4E04

Condition: New

Price: Sale price £63.75

Keysight N6742B 100W DC Power Module side view with cooling fan on top and product label visible

Keysight N6742B DC Power Module output end showing green terminal connector block and ventilation slots

Keysight N6742B 8V/12.5A 100W DC Power Module

Model: N6742B

Manufacturer: Keysight

In stock: 1

SKU: 3864 4E04

Condition: Used

Price: Sale price £212.50

Agilent 34902A 16-Channel Reed Multiplexer angled top view showing red reed relays under clear cover

Agilent 34902A Reed Multiplexer end view showing white multi-pin card edge connector for 34970A mainframe

Agilent 34902A 16-Channel Reed Multiplexer 300V 50mA 250 ch/s For 34970A/34972A

Model: 34902A

Manufacturer: Agilent

In stock: 1

SKU: 3871 7E03

Condition: Used

Price: Sale price £80.75

Agilent 34902A 16-Channel Reed Multiplexer 300V 50mA 250 ch/s For 34970A/34972A

Agilent 34902A 16-Channel Reed Multiplexer 300V 50mA 250 ch/s For 34970A/34972A

Agilent 34902A 16-Channel Reed Multiplexer 300V 50mA 250 ch/s For 34970A/34972A

Model: 34902A

Manufacturer: Agilent

In stock: 1

SKU: 3872 7E02

Condition: Used

Price: Sale price £80.75

Keysight N1027A-76A Phase Matching Cable Kit in open black hard carry case with foam inserts and note

Keysight N1027A-76A kit foam tray top view showing delay assembly, pick-off tees, equalizers, torque wrench

Keysight N1027A-76A Phase Matching Cable Kit for Electrical Clock Recovery

Model: N1027A-76A

Manufacturer: Keysight

In stock: 1

SKU: 3910 2B03

Condition: Used

Price: Sale price £760.75

Viavi ONA-800A-MF2 OneAdvisor 800 OTDR full kit: mainframe, carry bag, stylus, AC adapter, and accessories

Viavi JDSU ONA-800 Mainframe MFD 2022 + 8126 B SM OTDR 1310/1550nm 40dB ONA-800A

Model: ONA-800A One Advisor

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3913 2C03

Condition: Used

Price: Sale price £2,205.75

Raytek Raynger 3i RAYR3ILRSC infrared thermometer with scope, hard carry case and operator's manual

Raytek Raynger 3i RAYR3ILRSC right-side view showing telescopic scope, keypad and Raytek branding

Raytek Raynger 3i RAY R3ILRSC Long Range Handheld Infrared Thermometer

Model: RAY R3iLRSC

Manufacturer: Raytek

In stock: 1

SKU: 3821 7G04

Condition: Used

Price: Sale price £212.50

Narda 4609 WR-62 to SMA-F waveguide adapter angled view showing label: 12.4-18 GHz, VSWR 1.25, red dust cap fitted

Narda 4609 WR-62 waveguide coaxial adapter front view showing GREEN Narda branding, 12.4-18 GHz, VSWR 1.25 label

Narda 4601 WR-62 Waveguide To Coaxial Adapter SMA-F 12.4GHz to 18.0GHz VSWR 1.25

Model: 4609

Manufacturer: Narda

In stock: 1

SKU: 3800 4F01

Condition: Used

Price: Sale price £80.75

Keysight M8061A 32 Gb/s BERT Multiplexer front panel with SMA connectors, Opt 001/004/008 labels, S/N DE53800123

Keysight M8061A AXIe module right-side view showing internal PCBs, heat sinks and AXIe backplane connector

Keysight M8061A 32 Gb/s High-Performance BERT Multiplexer 2:1 001/004/008 AXIe

Model: M8061A

Manufacturer: Keysight

In stock: 1

SKU: 3844 7D04

Condition: Used

Price: Sale price £6,795.75

HP 60503B 240V 10A 250W DC Electronic Load Module — angled front view showing INPUT binding posts, sense/LCL/RMT indicators, connector, heatsink, and HPL-0291 calibration label

HP 60503B DC Electronic Load Module — top-down view showing full green PCB with ribbon cable connectors, power components, red connector housings, and aluminium heatsink

Keysight HP 60503B 240V/10A, 250W DC Electronic Load Module

Model: 60503B

Manufacturer: HP

In stock: 1

SKU: 3846 6C05

Condition: Used

Price: Sale price £165.75

Keysight M8051A J-BERT BERT module front panel on box, showing Channel 1 & 2 I/O ports, Opt G08 label, S/N MY55300805

Keysight M8051A J-BERT module angled view showing front panel connectors and internal PCBs with blue ribbon cables visible

Keysight M8051A-ATO-38977 J-BERT Module 8.5Gb/s Generator-Analyzer Opt: G08

Model: M8051A

Manufacturer: Keysight

In stock: 1

SKU: 3840 7D02

Condition: Used

Price: Sale price £6,795.75

Anritsu SM6629 Pulse Modulator Test Set front panel view showing LB/HB Amp ports, a1/b1/a2/b2 connectors, power switch

Anritsu SM6629 Pulse Modulator Test Set angled right-rear view showing ventilation perforations and rack handles

Anritsu SM6629 70KHz - 40GHz Pulse Modulator Test Set Source/Receiver Modulation

Model: SM6629

Manufacturer: Anritsu

In stock: 1

SKU: 3853 4E05

Condition: Used

Price: Sale price £6,370.75

RF One PL400-292M292M-1M 40 GHz 2.92mm cable assembly sealed in bag with VNA test plot

RF One PL400-292M292M-1M close-up of cable label showing model number and RF ONE branding

RF One PL400-292M292M-1M 40 GHz 2.92mm 50 Ohm Ultra-Low Loss Cable Assembly

Model: PL400

Manufacturer: RF One

In stock: 1

SKU: 3818 7G03

Condition: New

Price: Sale price £165.75

Keysight 34922T-001 70-Ch Arm MUX terminal block front view showing label, Option 001 active, Option 002 open

Keysight 34922T-001 terminal block rear panel showing two 78-pin D-sub connectors for 34922A multiplexer

Agilent Keysight 34922T-001 70 Ch Arm MUX Terminal Block For 34922A Multiplexer

Model: 34922T-001

Manufacturer: Agilent

In stock: 1

SKU: 3815 7G03

Condition: Used

Price: Sale price £80.75

Agilent 8494H 11dB 18GHz programmable step attenuator front view with multi-pin control cable

Agilent 8494H attenuator angled view showing serial label MY42141404 Option 001 and Keysight cal sticker

HP Agilent 8494H Programmable Attenuator 18 GHz 11 dB MY42141404

Model: 8494H

Manufacturer: Agilent

In stock: 1

SKU: 3829 6D03

Condition: Used

Price: Sale price £127.50

Gore PHASEFLEX 0SR01R01072.0 18GHz RF test cable coiled, purple braid, SMA male connectors, yellow end caps

Gore PHASEFLEX 0SR01R01072.0 SMA male connector close-up, gold pin, white PTFE dielectric, silver body

Gore 0SR01R01072.0 Phaseflex RF Test Cable 50 Ohms 18 GHz Male to Male 6ft

Model: 0SR01R01072.0

Manufacturer: GORE

In stock: 1

SKU: 3787 6G03

Condition: Used

Price: Sale price £80.75

Gore 0SR01R01036.0 Phaseflex 18GHz SMA male-to-male RF test cable, full length overhead view with dust caps

Gore 0SR01R01036.0 Phaseflex RF Test Cable 50 Ohms 18 GHz Male to Male 3ft

Model: 0SR01R01036.0

Manufacturer: GORE

In stock: 1

SKU: 3788 6G03

Condition: Used

Price: Sale price £80.75

Keysight N6315A RF test port cable Type-N male to female 50 Ohm full length view on white background

Keysight N6315A cable label showing part number 8121-0027 and serial N6315A00053041016 assembled in Mexico

Keysight N6315A RF Test Port Cable Type-N Male to Female 50 Ohm

Model: N6315A

Manufacturer: Keysight

In stock: 1

SKU: 3786 6G03

Condition: Used

Price: Sale price £42.50

Yokogawa 701250 HS10M12 isolation module front panel with two BNC inputs and 1MΩ35pF labels, two BNC caps alongside

Yokogawa 701250 rear label showing High-Speed 10MS/s 12-bit Isolation Module, serial 91NB27527, manufactured 2013-12-02

Yokogawa 701250 2CH 10MS/s 12-bit Voltage Input Module For DL750 Scope

Model: 701250

Manufacturer: Yokogawa

In stock: 20

SKU: 3780 6E04

Condition: Used

Price: Sale price £165.75

AEMC SL261 AC/DC Current Probe with original box, user manual, BNC cable, banana adapter and 9V battery

AEMC SL261 AC/DC Current Probe right-side view showing model label, input/output ratings and coiled BNC cable

AEMC Instruments SL261 AC Current Probe Multimeter 10A To 100A

Model: SL261

Manufacturer: AEMC Instruments

In stock: 2

SKU: 3778 6F03

Condition: Used

Price: Sale price £80.75

Spectrum LS-P150-HFHM phase trimmer in clear case with VNA test printout and cardboard box, Lot 40/2017

Spectrum LS-P150-HFHM 2.4mm phase trimmer upright view showing stainless body, gold label, S/N 6143

Spectrum C3117 LS-P150-HFHM Phase Trimmer 2.4mm DC-50GHz

Model: LS-P150-HFHM

Manufacturer: Spectrum

In stock: 2

SKU: 3768 6D03

Condition: Used

Price: Sale price £165.75

Hioki CT9667 AC Flexible Current Sensor 5000A — full unit overview showing yellow flexible loop, circuit box, and cables coiled on white background

Hioki CT9667 circuit box close-up showing POWER/OVER LEDs, 5000A/500A range selector switch, OFF position, and 500mV output label

Hioki CT9667 AC Flexible Current Sensor 5000A

Model: CT9667

Manufacturer: Hioki

In stock: 1

SKU: 3766 6C03

Condition: Used

Price: Sale price £140.25

PCTEL SeeGull IBflex 08900S scanning receiver with GPS antenna, power cable, and accessories laid out

PCTEL SeeGull IBflex front panel close-up showing COM, Wi-Fi/BT, GPS, USB, SD, RF1, RF2, LAN, and SYS ports

PCTEL SeeGull IBflex 570 MHz - 3.8 GHz Scanning Receiver 08900S LTE TD-LTE

Model: 08900S

Manufacturer: PCTEL

In stock: 1

SKU: 3030 7C02

Condition: Used

Price: Sale price £1,355.75

PCTEL SeeGull IBflex scanning receiver with GPS puck antenna, USB cable, and 12V vehicle power cable

PCTEL SeeGull IBflex scanning receiver front panel showing RF1, RF2, Wi-Fi/BT, GPS, USB, LAN, and SD ports

PCTEL SeeGull IBflex 570 MHz - 3.8 GHz Scanning Receiver 08900S LTE WCDMA CDMA

Model: 08900S

Manufacturer: PCTEL

In stock: 1

SKU: 3034 7C02

Condition: Used

Price: Sale price £1,355.75

EXFO MaxTester 700 series replacement back panel — rear view showing internal chassis, battery bay and PCB connector board

EXFO MaxTester 700 series back panel — angled side view showing blue housing, open chassis and extended tilt stand/carry handle

Repalcement EXFO MaxTester Back Panel

Model: Back Panel

Manufacturer: EXFO

In stock: 1

SKU: 3810 6F02

Condition: For parts or not working

Price: Sale price £127.50

HT-30 Visual Fault Locator 30mW upright front view showing model label, OTC2133 asset tag and calibration sticker

HT-30 Visual Fault Locator side view showing Visual Fault Locator label, caution laser warning sticker and green slide switch

Calibrated VFL HT-30 Visual Fault Locator with 2.5mm Connector 30mW

Model: HT-30

Manufacturer: Unbranded

In stock: 1

SKU: 3808 4F01

Condition: Used

Price: Sale price £21.25

Sunwoda XW-E413 Li-Ion battery front label showing 3.7V 10950mAh 40.5Wh rating and serial number SUN150810000320

Sunwoda XW-E413 EXFO MaxTester battery side/rear view showing dual-cell pouch body and multi-wire JST connector harness

Sunwoda XW-E413 Battery for EXFO MaxTester - Tested

Model: XW-E413

Manufacturer: Sunwoda

In stock: 1

SKU: 3807 6E05

Condition: Used

Price: Sale price £63.75

Gossen Metrawatt SECUTEST Base 10 M7050-V902 full kit with case, Z723A probe, barcode scanner, remote, adapters

Gossen Metrawatt SECUTEST Base 10 front panel showing colour TFT display, rotary selector, softkeys, TT Instruments label

Gossen Metrawatt SECUTEST Base 10 M7050-V902 Device Electrical Safety Tester

Model: SECUTEST

Manufacturer: Gossen Metrawatt

In stock: 1

SKU: 3755 4A02

Condition: Used

Price: Sale price £1,015.75

JDSU E98OS04 1x4 4-Port Optical Switch for OTU 8000 V1 — front panel view showing four SC/APC ports and one SC/UPC port

JDSU E98OS04 1x4 4-Port Optical Switch for OTU 8000 V1

Model: E98OS04

Manufacturer: Viavi JDSU

In stock: 1

SKU: 2340 2B02

Condition: Used

Price: Sale price £250.75

Viavi JDSU MTS 6000A About screen showing active software options and MSAM1 module serial number

Viavi JDSU MTS 6000A front panel showing TrueSAM 1GigE Ethernet test menu with Layer 1–4 options

Viavi JDSU MTS 6000A BERT MSAM Ethernet Module 1G Ethernet 4G Fibre Channe

Model: BERT MSAM

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3721 3B03

Condition: Used

Price: Sale price £420.75

Keysight 11901A-FG adapter in original tube on anti-static pink bubble wrap with Keysight label

Keysight Agilent 2.4 mm male to APC - 3.5 male 11901A

Model: 11901A

Manufacturer: Keysight Agilent

In stock: 2

SKU: 3719 7D02

Condition: New other (see details)

Price: Sale price £165.75

ZEISS Axio Observer Z1 motorised inverted microscope full system with Lenovo laptop, Basler camera, HBO 100 and Power Supply 232

Lenovo ThinkPad T14 laptop screen showing Basler Pylon software with Axio Observer Z1 live monochrome microscope image

ZEISS Axio Observer Z1 Motorized Microscope with Laptop, Camera and Light Source

Model: Axio Observer

Manufacturer: ZEISS

In stock: 2

SKU: 3635 1B03

Condition: Used

Price: Sale price £5,520.75

Applied Biosystems QuantStudio 12K Flex PCR System front view showing touchscreen with firmware v1.2.18 and S/N 285881006

QuantStudio 12K Flex Real-Time PCR System right side view showing Life Technologies branding and sample drawer access

Applied Biosystems QuantStudio 12K Flex Real-Time PCR System 4470661 96-Well

Model: 12K Flex

Manufacturer: Applied Biosystems

In stock: 1

SKU: 3633 FL00

Condition: Used

Price: Sale price £5,095.75

Philips IntelliVue MX40-2B4 wearable patient monitor with 5-lead ECG grabber cable, rechargeable battery and battery holder

Philips IntelliVue MX40-2B4 rear label showing model MX40-2B4, SN US097D6282, REF 865351, IPX7 rating and MAC address

Philips IntelliVue MX40-2B4 Monitor + 1x Batteries MX40 & Leads C01 S01

Model: MX40

Manufacturer: Philips

In stock: 4

SKU: 3584 7E04

Condition: Used

Price: Sale price £378.25

Viavi JDSU MTS 6000A OTDR front view showing VIAVI boot screen, with AC adapter, stylus, and carry bag

Viavi MTS 6000A 8126C OTDR screen showing SM-OTDR trace at 1550nm with 3-event table and link loss 36.17 dB

Viavi JDSU MTS 6000A + 8126C SM OTDR 1310/1550nm 47 dB Bi-directional Testing

Model: MTS 6000A & 8126C

Manufacturer: Viavi JDSU

In stock: 2

SKU: 3400 2B02

Condition: Used

Price: Sale price £1,270.75

Applied Biosystems QuantStudio 12K Flex Real-Time PCR System front view with touchscreen powered on

QuantStudio 12K Flex Real-Time PCR System left side view showing Life Technologies branding and power cable

Serviced Applied Biosystems QuantStudio 12K Flex Real-Time PCR System 4470661

Model: 12K Flex

Manufacturer: Applied Biosystems

In stock: 1

SKU: 3632 FL00

Condition: Refurbished

Price: Sale price £5,945.75

Verathon BladderScan Prime Plus 0570-0394 console front view powered on showing BladderScan boot screen

Verathon BladderScan Prime Plus 0570-0394 console front view powered off showing touchscreen and control buttons

Verathon 0570-0394 BladderScan Prime Plus with Battery

Model: 0570-0394

Manufacturer: Verathon

In stock: 1

SKU: 3554 4C03

Condition: Used

Price: Sale price £420.75

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