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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.

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We buy used, surplus and pre-owned test and laboratory equipment.

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Zeiss AxioCam HRc 412-312 colour microscope camera with external power supply and optical fibre cable, full kit

Zeiss AxioCam HRc 412-312 front view showing C-mount lens port and radial heat-sink fins, ZEISS branding on top

Zeiss Axiocam 412312 Colour Microscope Camera w/ Power Supply + Optical Cable

Model: 412-312

Manufacturer: ZEISS

In stock: 1

SKU: 7819 6C04

Condition: Used

Price: Sale price £250.75

Eppendorf 5391 HeatSealer S100 microplate sealer front view with 96-well plate adapter inserted and TT Instruments product label

Eppendorf 5391 HeatSealer S100 rear view showing IEC power inlet, voltage selector switch, fuse holder, and regulatory label

Eppendorf 5391 Microwell Microplate Plate Sealer

Model: 5391

Manufacturer: Eppendorf

In stock: 1

SKU: 8176 6E05

Condition: Used

Price: Sale price £637.50

Solentim Cell Metric CLD High Contrast Imager front view with two 10-plate stacker cassettes and Loader-PSU

Solentim Cell Metric CLD angled front-right view showing heated stacker tower, blue LED strip, and Loader-PSU

Solentim Cell Metric CLD High Contrast Imager w/10 Plate Heated Stacker MFG 2021

Model: CM-Loader

Manufacturer: Solentim

In stock: 1

SKU: 8203 1E03

Condition: Used

Price: Sale price £3,395.75

Sartorius Stedim BioWelder TC front view showing LCD touchscreen displaying model name, yellow handle and TT Instruments label

Sartorius BioWelder TC thermoplastic tube welder angled left side view showing smoked safety cover and base wear

Sartorius Stedim BioWelder TC Sterile Tube Welder

Model: BioWelder TC

Manufacturer: Reed Electronics

In stock: 1

SKU: 8202 3D03

Condition: Used

Price: Sale price £4,245.75

Sartorius SECURA6101-1CEU precision balance front 3/4 view with stainless steel pan and UK AC power adapter

Sartorius SECURA6101-1CEU right side view showing manufacturer label: Max 6100g, SQP-C, CE M18, Made in Germany

Sartorius SECURA6101-1CEU Balance Min=5g Max=6100g e=0.1g d=0.1g MFG 2018

Model: SECURA6101-1CEU

Manufacturer:

In stock: 2

SKU: 8173 3D03

Condition: Used

Price: Sale price £382.50

Spectrum Labs KrosFlo MiniKros Pilot i TFF System 900-1939 — front three-quarter view showing pump head and LCD display

KrosFlo MiniKros Pilot i 900-1939 LCD screen showing firmware Version A.6.3 / 0.3.6 and TTInstruments product ID 8182

Spectrum Labs KrosFlo MiniKros Pilot Peristaltic Pump 900-1939

Model: 900-1939

Manufacturer: Spectrum Labs

In stock: 1

SKU: 8182 2C03

Condition: Used

Price: Sale price £420.75

Save £184.25

Fujikura 31S+ fusion splicer kit with CT16 cleaver, AC adapter, fibre stripper and hard carrying case

Fujikura 31S+ fusion splicer front-angle view showing 5-inch touchscreen and HEAT RESET SET controls

Serviced Fujikura 31S+ Active Cladding Fusion Splicer + CT16 Cleaver ARC 695

Model: 31S+

Manufacturer: Fujikura

In stock: 1

SKU: 8186 5B03

Condition: Refurbished

Price: Sale price £760.75 Regular price £945.00

GE Cytiva Sepax C-Pro cell processing instrument front view with IV pole stand and Datalogic barcode reader

GE Cytiva Sepax C-Pro cell processing instrument right-side angle view showing touchscreen display and IV pole

GE Cytiva Sepax C-Pro Cell Processing Instrument 2018 w/ Barcode Reader

Model: Sepax C-Pro

Manufacturer: GE

In stock: 2

SKU: 8168 2C02

Condition: Used

Price: Sale price £2,970.75

ACEA Biosciences xCELLigence RTCA W380 control unit, 3/4 front view with RS-232 serial cable included

xCELLigence RTCA W380 rear panel showing COM port, EPS port, reset button, mains switch and model label

ACEA Biosciences xCELLigence RTCA W380 RealTime Cell Analyzer

Model: xCELLigence w380

Manufacturer: ACEA Biosciences

In stock: 1

SKU: 8171 4D04

Condition: Used

Price: Sale price £1,270.75

Spectrum Instruments TM4-M+ Rubidium Time Frequency Reference System with accessories, carry case and software CD

Spectrum Instruments TM4-M+ Rubidium front and top panel view showing BNC outputs and ON/OFF switch

Spectrum Instruments TM4-M+ Rubidium Time Frequency Reference System 21351-102

Model: TM4-M+

Manufacturer: Spectrum Instruments

In stock: 1

SKU: 8160 7E01

Condition: Used

Price: Sale price £637.50

ionBench BCH120NE78 mobile mass spectrometer bench front view, black cabinet, two doors, castors, ionBench label

ionBench BCH120NE78 mass spec bench side view showing black cabinet body, grey worktop overhang, and castors

ionBench BCH120NE78 Mobile Lab Bench For Mass Spectrometer 120x88x86cm

Model: BCH120NE78

Manufacturer: ionBench

In stock: 1

SKU: 8135 FL00

Condition: Used

Price: Sale price £760.75

Save £2,000.00

Heidelberg Engineering HRA+OCT Spectralis full system setup with NEC monitor, Dell PC, touch panel, isolation transformer and foot switch on mobile trolley

Heidelberg Engineering Spectralis HRA+OCT module comparison chart showing standard and optional features across OCT, HRA+OCT and HRA models

Heidelberg Engineering HRA + OCT Spectralis Imaging System MFD 2012

Model: HRA + OCT Spectralis

Manufacturer: Heidelberg Engineering

In stock: 1

SKU: 8031 FL00

Condition: Used

Price: Sale price £15,995.00 Regular price £17,995.00

Keysight MSOX3032A front view powered on showing InfiniiVision MegaZoom IV boot screen, 2 BNC inputs and TT Instruments product ID label 8024

Keysight MSOX3032A front panel view with screen off showing full control panel, 2 analogue BNC inputs and 16-channel digital probe connector

Keysight MSOX3032A 2+16CH 350 MHz Mixed Signal Oscilloscope MSO-X 3032A + N2140A

Model: MSOX3032A

Manufacturer: Keysight Agilent

In stock: 1

SKU: 8024 XXXX

Condition: Refurbished

Price: Sale price £2,545.75

Leitz Orthoplan compound microscope with Wild Heerbrugg illuminator, 6 objectives, eyepieces and blue filters laid out

Leitz Orthoplan compound microscope right-side view showing trinocular head, NPL Fluotar objectives and mechanical stage

Leitz Orthoplan Compound Microscope with 6x Objectives & Illuminator

Model: Orthoplan

Manufacturer: Leitz

In stock: 1

SKU: 8013 3B04

Condition: Used

Price: Sale price £1,525.75

Anritsu MA25100A RF Power Indicator with Anritsu SiteMaster branded lanyard, full unit view

Anritsu MA25100A RF Power Indicator body label showing 400 MHz–4.0 GHz, 100W max, S/N 1408170

Anritsu MA25100A RF Power Indicator 400 MHz - 4.0 GHz

Model: MA25100A

Manufacturer: Anritsu

In stock: 1

SKU: 7938 6G03

Condition: Used

Price: Sale price £63.75

Olympus FLUOVIEW FV10i confocal microscope system front view with PSU, external module, and specimen holders

Olympus FLUOVIEW FV10i confocal laser scanning microscope front panel close-up with product ID label

Olympus FLUOVIEW FV10i Confocal Laser Scanning Microscope System FV10C-W

Model: FV10i

Manufacturer: Olympus

In stock: 1

SKU: 8019 XXXX

Condition: Used

Price: Sale price £6,795.75

Thermo Scientific Varioskan Flash Type 3001 microplate reader front view, lid closed, blue base

Varioskan Flash 5250040 front view lid open showing internal optics, DLReady module and dispensers

Thermo Scientific Varioskan Flash Type 3001 Microplate Reader 5250040 MFD 2012

Model: 5250040

Manufacturer: Thermo Scientific

In stock: 1

SKU: 8018 8A03

Condition: Used

Price: Sale price £2,970.75

Dionex VWD-3400RS UltiMate 3000 RS Variable Wavelength Detector front panel showing 265 nm display

Dionex VWD-3400RS UltiMate 3000 RS Variable Wavelength Detector top and rear view with service label

Dionex VWD-3400RS UltiMate 3000 RS Variable Wavelength Detector For UHPLC+

Model: VWD-3400RS

Manufacturer: Dionex

In stock: 1

SKU: 8014 4B02

Condition: Used

Price: Sale price £1,270.75

Illumina MiniSeq SY-420-1001 NGS sequencer front view with touchscreen, keyboard, and High Output reagent cartridge insert plate

Illumina MiniSeq DNA Sequencer System SY-420-1001 MFG 2016 Run Count 22

Model: MiniSeq

Manufacturer: Illumina

In stock: 1

SKU: 8003 8A03

Condition: Used

Price: Sale price £2,595.00

Lumenis Sharplan AcuSpot 712 CO2 laser micromanipulator kit in open black carry case with blue foam insert

Sharplan AcuSpot 712 CO2 laser aperture micromanipulator with accessories laid out beside labelled carry case

Lumenis Sharplan Acuspot 712 CO2 Laser Aperture Micromanipulator 200 mm-400 mm

Model: Acuspot 712

Manufacturer: Lumenis Sharplan

In stock: 1

SKU: 8027 XXXX

Condition: Used

Price: Sale price £1,270.75

Halo Labs Horizon Particle Analyzer 10-0001 full kit — main unit with vacuum bottle assembly, membrane plates, and manifold

Halo Labs Horizon Particle Analyzer 10-0001 — left-side view showing hexagonal ventilation grille and Halo Labs branding

Halo Labs Horizon Particle Analyzer 10-0001 Waters

Model: Horizon

Manufacturer: Halo Labs

In stock: 1

SKU: 8000 2D03

Condition: Used

Price: Sale price £4,245.75

Rohde & Schwarz SMC100A 9 khz - 3.2 GHz Signal Generator SMC-B103 Option R&S SMC

Rohde & Schwarz SMC100A 9 khz - 3.2 GHz Signal Generator SMC-B103 Option R&S SMC

Rohde & Schwarz SMC100A 9 khz - 3.2 GHz Signal Generator SMC-B103 Option R&S SMC

Model: SMC100A

Manufacturer: Rohde & Schwarz

In stock: 1

SKU: 8016 4C02

Condition: Used

Price: Sale price £2,205.75

Watson Marlow 530UN IP66 peristaltic pump with 520R head, quick start manual, tubing guide and spare fuse — full kit view

Watson Marlow 530U front panel showing colour display, mode controls, start/stop buttons and 520R pump head with clear cover

Watson Marlow 530U (530UN/R) IP66 Pump with 520R Head

Model: 530UN/R

Manufacturer: Watson Marlow

In stock: 4

SKU: 8010 3A02

Condition: Used

Price: Sale price £1,270.75

Watson Marlow 530UN IP66 peristaltic pump front-angle view with 520R2 pumphead and 520 Af foot switch

Watson Marlow 530UN peristaltic pump right-side view showing green housing, LCD display and 520R2 pumphead

Watson Marlow 530U (530UN/R) IP66 Pump with 520R2 Head & 520 Af Foot Switch

Model: 530UN/R

Manufacturer: Watson Marlow

In stock: 3

SKU: 8009 4A03

Condition: Used

Price: Sale price £1,270.75

FLIR Thermovision A40 thermal imager kit in open hard carry case with foam insert, IR-Lens, cables, manual and CD

FLIR Thermovision A40 thermal imager with FLIR IR-Lens 18mm, ThermaCAM QuickView CD, power adapter and lens cap

FLIR Thermovision A40 Infrared Thermal Imager with IR-LENS 18 mm - Working

Model: A40

Manufacturer: Flir

In stock: 1

SKU: 3221* 4C04

Condition: Used

Price: Sale price £675.75

Agilent Keysight N2267A High Current GP Relay Module — angled top view showing front panel and serial label MY42000244

Agilent N2267A relay module front panel — 8 red input connectors (00–07), 250VAC 8A max rating and WARNING label

Agilent Keysight N2267A 8-Channel High Current General Relay Module

Model: N2267A

Manufacturer: Agilent

In stock: 1

SKU: 7988 6F05

Condition: Used

Price: Sale price £212.50

HP Agilent 909A APC-7 coaxial termination front view showing worn body label with model number and Hewlett-Packard branding

HP Agilent 909A APC-7 coaxial termination end-on view showing gold-plated precision 7mm APC-7 centre conductor and connector face

HP Agilent 909A 18 GHz APC-7 RF Coaxial Precision Load

Model: 909A

Manufacturer: Keysight

In stock: 1

SKU: 7968 3A03

Condition: Used

Price: Sale price £63.75

HP Agilent 8495G 70dB Step Attenuator front view showing Type-N female connectors and label — DC-4GHz 1W CW

HP Agilent 8495G attenuator end panel showing 24VDC label, 12-pin Viking programming connector and Type-N port

Agilent 8495G 0-70 dB Manual Step Attenuator DC-4 GHz Opt. 001

Model: 8495G

Manufacturer: Agilent

In stock: 1

SKU: 7958 6G03

Condition: Used

Price: Sale price £80.75

Keysight 84904L Opt. 006 11dB attenuator front view showing calibration label, S/N TH59432904, DC-40GHz, on black stand

Keysight 84904L 40GHz programmable attenuator right-side view showing single 2.92mm SMA-compatible RF port on black housing

Keysight Agilent 84904L Opt. 006 11dB Attenuator DC-40GHz

Model: 84904L

Manufacturer: Agilent

In stock: 1

SKU: 7955 6G03

Condition: Used

Price: Sale price £148.75

Keysight Agilent 1250-1746 APC-7 to 3.5mm Male SMA adapter angled view showing knurled body and APC-7 face

Keysight Agilent 1250-1746 APC-7 SMA adapter side view showing gold 3.5mm male SMA pin and threaded coupling sleeve

Keysight Agilent 1250-1746 APC-7 3.5MM MALE SMA Adapter DC - 18 GHz

Model: 1250-1746

Manufacturer: Agilent

In stock: 1

SKU: 7943 4E03

Condition: Used

Price: Sale price £63.75

Chauvin Arnoux A 193B AC current probe front view showing ON/OL LEDs, 1mV/A switch, 2000A/2V label and cable

Chauvin Arnoux A 193B rear label showing safety warnings, 9V battery type, CE mark and Made in France

Chauvin Arnoux A 193B AC Current Probe 2000A-/2V-

Model: A 193B

Manufacturer: Chauvin Arnoux

In stock: 1

SKU: 7985 6C03

Condition: Used

Price: Sale price £63.75

Viavi OTU 8000E v2 chassis front view showing LC/APC ports, USB, Ethernet, BCK/LOC, OSX connectors and unused slot

Viavi OTU 8000E v2 chassis angled front-left view showing LC/APC optical ports, ventilation grille and control panel

Viavi JDSU OTU 8000E v2 Chassis with OTAU 1x8 Optical Switch MFD 2020

Model: OTU 8000E V2

Manufacturer: Viavi JDSU

In stock: 1

SKU: 7950 3C03

Condition: Used

Price: Sale price £637.50

Viavi G700050357 Omni Antenna 2300-2700 MHz Type N male, side view showing label with S/N 50357-15-55

Viavi G700050357 RF Omni Antenna close-up of Type N male connector end showing centre pin and knurled body

Viavi Omni Antenna 2300 - 2700 MHz G700050357 RF Type N (m)

Model: G700050357

Manufacturer: Viavi JDSU

In stock: 1

SKU: 7939 6G03

Condition: Used

Price: Sale price £21.25

VIAVI E98LGX2F162SA LGX Box Two 1625nm SC/APC Filters with original cardboard box, front panel showing Com A, Data A, Com B, Data B SC/APC ports

VIAVI E98LGX2F162SA rear label showing PN E98LGX2F162SA, Component PN MWDMG15160JDS10G, SN D4310726, RoHS compliant, four SC/APC ports visible

VIAVI E98LGX2F162SA LGX BOX WITH TWO 1625 nm filters (SC/APC)

Model: E98LGX2F162SA

Manufacturer: Viavi JDSU

In stock: 2

SKU: 7993 XXXX

Condition: Used

Price: Sale price £106.25

Analytik Jena CyBio Selma OL7001-26-213 96/250ul Pipetting Station 2018

Model: OL7001-26-213

Manufacturer: Analytik Jena AG

In stock: 1

SKU: 7973 4C04

Condition: Used

Price: Sale price £2,545.75

Teledyne ISCO CombiFlash NextGen 300+ UV chromatography system front-right view, touchscreen loading, solvent tubing

Teledyne ISCO CombiFlash NextGen 300+ left-side and rear view showing internal pump components and solvent tubing

Serviced Teledyne ISCO CombiFlash NEXTGEN 300+UV Chromatography System

Model: CombiFlash NEXTGEN 300+

Manufacturer: Teledyne ISCO

In stock: 2

SKU: 7975 1C03

Condition: Used

Price: Sale price £7,995.00

Keysight 85130C adapter kit open wooden presentation case showing two gold NMD 3.5mm Type-N adapters in foam

Keysight 85130C kit contents label showing part numbers 85054-60029, 85054-60030 and spanner wrench 08513-20014

Keysight Agilent 85130C 3.5 mm Test Port - Type N (m&f) Adapter Kit

Model: 85130C

Manufacturer: Agilent

In stock: 1

SKU: 7948 4E03

Condition: Used

Price: Sale price £637.50

EXFO FTB-1 with FTB-860 Ethernet tester, carry case, two SFP modules and AC power adapter

EXFO FTB-1 Mainframe with FTB-860 Ethernet Tester 1G RFC 2544 Ether SAM

Model: FTB-1 FTB-860

Manufacturer: EXFO

In stock: 1

SKU: 7922 3D04

Condition: Used

Price: Sale price £505.75

Rohde & Schwarz CMW290 functional radio communication tester front panel view showing TFT display, keypad, and RF connectors

Rohde & Schwarz CMW290 1201.0002K29 three-quarter left view showing top ventilation, calibration sticker, and front panel controls

Rohde & Schwarz CMW290 Radio Communication Tester 1201.0002K29 RF Test Signal +

Model: CMW290

Manufacturer: Rohde & Schwarz

In stock: 1

SKU: 7894 2D04

Condition: Used

Price: Sale price £6,795.75

Flann Microwave 16093-NF10 WG16 waveguide to N-type adaptor, angled view with protective cap and mounting bolts

Flann Microwave 16093-NF10 front view showing Type N female coaxial connector with gold centre pin and UBR100 flange

Flann Microwave 16093-NF10

Model: 16093-NF10

Manufacturer: Flann

In stock: 1

SKU: 7910 XXXX

Condition: Used

Price: Sale price £34.00

VIAVI G700050608 Band Pass Filter 880–915 MHz with original brown cardboard box, front view

VIAVI G700050608 Band Pass Filter angled view showing N-male output connector and purple label

VIAVI G700050608 Band Pass Filter 880 MHz to 915 MHz

Model: G700050608

Manufacturer: Viavi JDSU

In stock: 4

SKU: 7908 XXXX

Condition: New other (see details)

Price: Sale price £136.00

VIAVI G700050607 Band Pass Filter 832–862 MHz shown with original retail box, label visible with part number and serial number

VIAVI G700050607 Band Pass Filter rear view showing N-type female output connector and VIAVI label with serial number barcode

VIAVI G700050607 Band Pass Filter 832 MHz to 862 MHz

Model: G700050607

Manufacturer: Viavi JDSU

In stock: 2

SKU: 7907 XXXX

Condition: New other (see details)

Price: Sale price £136.00

VIAVI G700050611 Band Pass Filter 2500–2570 MHz front view with purple label and original cardboard box

VIAVI G700050611 Band Pass Filter N-female input connector end, angled side view showing housing screws

VIAVI G700050611 Band Pass Filter 2500 MHz to 2570 MHz

Model: G700050611

Manufacturer: Viavi JDSU

In stock: 2

SKU: 7906 XXXX

Condition: New other (see details)

Price: Sale price £136.00

VIAVI G700050609 Band Pass Filter 1710–1785 MHz with original VIAVI cardboard box, front label visible

VIAVI G700050609 Band Pass Filter angled view showing N-male output connector and purple label detail

VIAVI G700050609 Band Pass Filter 1710 MHz to 1785 MHz

Model: G700050609

Manufacturer: Viavi JDSU

In stock: 2

SKU: 7905 XXXX

Condition: New other (see details)

Price: Sale price £136.00

Viavi CFP2 Electrical Adapter 3076/92.90 top view showing product label, CE mark, QR code, and RX lane markings

Viavi CFP2 Electrical Adapter 3076/92.90 reverse side showing dual gold-pin electrical connectors on green PCB and two rubber port covers

Viavi CFP2-Electrical Adapter 3076/92.90 CFP2 4x25G Electrical Adapter

Model: 3076/92.90

Manufacturer: Viavi JDSU

In stock: 1

SKU: 7902 XXXX

Condition: Used

Price: Sale price £297.50

Rohde & Schwarz NRQ6 frequency selective power sensor front-right angle showing N-type RF connector and LAN PoE+ label

R&S NRQ6 power sensor rear-right view showing LAN PoE+ port, Host Interface, Trigger 2 I/O, Reference I/O connectors and MAC address label

Rohde & Schwarz NRQ6 Freq. Selective Power Sensor 50MHz - 6GHz -130dBm to +20dBm

Model: NRQ6

Manufacturer: Rohde & Schwarz

In stock: 1

SKU: 7837 6F03

Condition: Used

Price: Sale price £7,495.00

Viavi mEDFA-C11LB-M100-MFA L-band EDFA amplifier module in open cardboard box with pink anti-static foam packaging

Viavi mEDFA-C1 L-band amplifier front panel showing IN/OUT FC/APC ports, L Band laser label, APC and SMF/9um indicators, with MAP-200 USB Key

Viavi JDSU mEDFA-C1 L-band Amplifier SM APC mEDFA-C11LB-M100-MFA 1565-1610 nm

Model: mEDFA

Manufacturer: Viavi JDSU

In stock: 1

SKU: 7866 5C02

Condition: Used

Price: Sale price £1,695.75

Viavi G700050370 RF horn antenna kit with carry case, tripod handle, GPS antenna, cable and adapter — overhead view

Viavi G700050370 horn antenna kit contents laid out: VIAVI hard case, PE9850/2F-20 horn, armoured 40GHz cable, GPS puck and tripod handle

Viavi JDSU G700050370 RF Directional Horn Antenna kit K-f 26.5 to 40 GHz 15dBi

Model: G700050370

Manufacturer: Viavi JDSU

In stock: 1

SKU: 7892 5D04

Condition: Used

Price: Sale price £1,270.75

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