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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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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: 16

SKU: 3780 6E04

Condition: Used

Price: Sale price £165.75

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 £136.00

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 £127.50

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 £1,185.75

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 £1,185.75

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 £150.00

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 4B02

Condition: Used

Price: Sale price £1,015.75

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 £5,095.75

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 1E04

Condition: Used

Price: Sale price £3,995.00

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: 3

SKU: 3584 7E04

Condition: Used

Price: Sale price £335.75

EXFO FIP-400 fibre inspection probe with U25 tip fitted, protective tip cap, and coiled cable — full side view

EXFO FIP-400 fibre inspection probe side view showing 8-pin mini-DIN connector port, body buttons and grip

EXFO FIP-400 Fiber Scope with U25 tip for 2.5mm Ferrules

Model: FIP-400

Manufacturer: EXFO

In stock: 1

SKU: 3502 7D02

Condition: Used

Price: Sale price £102.00

Viavi JDSU CA5000 CellAdvisor 5G Option F002 5G NR FR1 - 6 GHz & FR2 - 40 GHz

Viavi JDSU CA5000 CellAdvisor 5G Option F002 5G NR FR1 - 6 GHz & FR2 - 40 GHz

Viavi JDSU CA5000 CellAdvisor 5G Option F002 5G NR FR1 - 6 GHz & FR2 - 40 GHz

Model: CA5000

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3347 5C04

Condition: Used

Price: Sale price £5,095.75

Viavi FOD5510M MPO Switch 1x12 full kit with OM4 launch boxes, patchcords, USB cable and carry case

Viavi FOD5510M MPO Switch front panel showing SC/PC and MPO ports, channel display and TT Instruments label

Viavi MPO Switch MM FOD5510M 1x12 with Launch Cables

Model: FOD5510M

Manufacturer: Viavi JDSU

In stock: 3

SKU: 3448 7E03

Condition: Used

Price: Sale price £80.75

VIAVI NSC-100 Network & Service Companion front panel showing Pair/Power buttons, LED indicators, SFP, ETH, WiFi, CHG ports

VIAVI NSC-100 Network & Service Companion top-down view showing ventilation grille and carry strap

Viavi JDSU NSC-100 Network & Service Companion 1G LOOPBACK GPON + MORE

Model: NSC-100

Manufacturer: Viavi JDSU

In stock: 3

SKU: 3080 6D01

Condition: Used

Price: Sale price £212.50

PCTEL SeeGull IBflex 08900S scanning receiver with magnetic cellular antenna, GPS patch antenna, and USB cable

PCTEL SeeGull IBflex front panel showing COM, Wi-Fi/BT, GPS, USB, LAN, SD card, RF1, RF2 ports and power switch

PCTEL SeeGull IBflex 570 MHz - 3.8 GHz Scanning Receiver 08900S xx Licences 4G

Model: 08900S

Manufacturer: PCTEL

In stock: 1

SKU: 3040 5D02

Condition: Used

Price: Sale price £1,185.75

PCTEL SeeGull IBflex scanning receiver complete kit with two RF antennas, GPS antenna, DC power cable and USB cable

PCTEL SeeGull IBflex front panel showing COM, Wi-Fi/BT, GPS, USB, LAN, SD card slot, RF1, RF2 ports and power switch

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

Model: 08900S

Manufacturer: PCTEL

In stock: 1

SKU: 3029 5D02

Condition: Used

Price: Sale price £1,185.75

Viavi NSC-100 Network Service Companion full kit with carry bag, power adapter, plugs, battery and Quick Start Guide

Viavi NSC-100 Network Service Companion front panel showing Pair, Power, Run buttons and SFP ETH WIFI CHG indicators

Viavi NSC-100 Network and Service Companion Loopback 1G Ethernet GPON WIFI

Model: NSC-100

Manufacturer: Viavi JDSU

In stock: 5

SKU: 6129 4B04

Condition: Used

Price: Sale price £165.75

ZEISS Plan-Apochromat 40x/0.95 Korr objective front view showing engraved markings and part number 44 06 54

ZEISS Plan-Apochromat 40x/0.95 Korr objective showing Plan-APOCHROMAT label, infinity correction, and correction collar scale

ZEISS Plan-APOCHROMAT 40x/0.95 Korr 44 06 54 (1108-276) Microscope Objective

Model: 44 06 54

Manufacturer: Carl Zeiss

In stock: 1

SKU: 3299 CB02

Condition: Used

Price: Sale price £505.75

Keysight Agilent Accessories for N4002A

Keysight Agilent N4002A accessories: Mini-Circuits ZFM-4212 mixer, SBP-70 filter, SMA adapters, attenuator

Keysight Agilent Accessories for N4002A

Model: Various

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3482 3D01

Condition: Used

Price: Sale price £127.50

Save £1,000.00

Full lot view: 9x Philips IntelliVue MX40-2B4 monitors, 865220 charging station, batteries, holders and ECG cables

Nine Philips IntelliVue MX40 wearable monitors with screen off, front view showing colour touchscreen and controls

9x Philips Intellivue MX40-2B4 Patient Wearable Monitors with Batteries & Charger

Model: MX40

Manufacturer: Philips

In stock: 1

SKU: 3462 4A03

Condition: Used

Price: Sale price £3,995.00 Regular price £4,995.00

Micronic DT300 2D Bluetooth Tube Reader MP55127 front view with lanyard and TTInstruments product ID tag

Micronic DT300 2D Bluetooth Reader scanning aperture close-up showing imaging sensor and LED illumination

Micronic DT300 2D Bluetooth Reader MP55127

Model: MP55127

Manufacturer: Micronic

In stock: 1

SKU: 3428 6G02

Condition: Used

Price: Sale price £127.50

Micronic DR505 Rack Reader front view with side barcode reader arm raised, TT Instruments label visible

Micronic DR505 Rack Reader angled view with USB cable, power supply adapter, and side barcode reader arm

Micronic DR505 Rack Reader With Side Barcode Reader

Model: DR505

Manufacturer: Micronic

In stock: 2

SKU: 3429 4D03

Condition: Used

Price: Sale price £760.75

Zeiss Plan-NEOFLUAR 10x/0.30 objective front view showing green label, yellow band and part number 3 31

Zeiss Plan-NEOFLUAR 10x/0.30 objective reverse side showing P' marking, yellow band and light surface scratching

ZEISS Plan-NEOFLUAR 10x/0.30 Microscope Objective 44 03 31

Model: 440331

Manufacturer: Carl Zeiss

In stock: 1

SKU: 3298 CB02

Condition: Used

Price: Sale price £80.75

Viavi TM100GA 100G Module front panel view showing all ports: CFP4, QSFP28, SFP28, RJ-45, RJ-48c, BNC, SMA and USB

Viavi TM100GA 100G Module close-up of Port 2 area showing DS1/E1 RJ-48c, 10/100/1000 RJ-45, and Mini-BNC connectors

Viavi JDSU TM100GA Transport Module with Multiple Licences 100G Module

Model: TM100GA

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3344 4C02

Condition: Used

Price: Sale price £3,820.75

JDSU OLP-55 BN 2277/03 optical power meter front view with port cap open, displaying +4.51 dB reading, with carry case

JDSU OLP-55 specifications chart showing BN 2277/01 to BN 2277/04 variants wavelength range and uncertainty data

Viavi JDSU OLP-55 Optical Power Meter 2277/03 800nm - 1700nm High Power +26 dBm

Model: OLP-55

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3382 4E03

Condition: Used

Price: Sale price £106.25

JDSU OLT-55 SmartClass Optical Loss Test Set front view with port cover open showing fibre connectors

JDSU OLT-55 SmartClass OLTS rear view with port cover open showing serial number label R-0036

Viavi JDSU OLT-55 SmartClass Optical Loss Test Set 1310/1490/1550 nm 2286/02

Model: OLT-55

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3384 4E03

Condition: Used

Price: Sale price £165.75

Renishaw RL633 HeNe 633nm laser unit — front-side view showing branding label and laser caution sticker

Renishaw RL633 HeNe laser — output aperture end showing laser port, LASER indicator LED and avoid exposure label

Renishaw RL633 HeNe 633 nm Laser For Raman Spectroscopy MFD 2011

Model: RL633

Manufacturer: Renishaw

In stock: 1

SKU: 3396 1B02

Condition: Used

Price: Sale price £1,525.75

Renishaw HPNIR830 830nm NIR laser module on aluminium baseplate with user manual and cable connector

Renishaw HPNIR830 front panel showing NIR branding, sunburst graphic, laser aperture and key switch

Renishaw NIR HPNIR830 High Power 830nm Laser MFD 2005

Model: HPNIR830

Manufacturer: Renishaw

Spectroscopy

In stock: 1

SKU: 3394 2B03

Condition: Used

Price: Sale price £1,525.75

Viavi FBTP-FC-APC FC/APC bulkhead probe tip — angled top view showing knurled body and male threaded nozzle

Viavi FBTP-FC-APC FC/APC bulkhead probe tip — front-on view showing knurled collar and threaded male connector

Viavi JDSU Fiberscope FBTP-FC-APC Bulkhead Tip for FiberChek & P5000i Probes

Model: FBTP-FC-APC

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3393 6E02

Condition: Used

Price: Sale price £106.25

Viavi MTS 6000A V2 OTDR acquisition screen showing 1542.94 nm wavelength, 50 GHz DWDM grid, 5 km range and DWDM channel selector

Viavi JDSU E81WDM-C Tunable DWDM OTDR Module C-Band with 6000A V2 Mainframe

Model: E81WDM-C

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3358 2D04

Condition: Used

Price: Sale price £5,095.75

Keysight N7564A 6-port ECal Module with Keysight box, USB cable, torque wrench, brackets and accessories

Keysight N7564A Multiport ECal Module front panel showing 6 ports A–F, 3.5 mm label, USB port and DC Coupled markings

Keysight Agilent N7564A DC-20 GHz Multiport ECal Module 6-Ports

Model: N7564A

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3154 6F04

Condition: Used

Price: Sale price £4,075.75

PCTEL SeeGull IBflex 08900S rear panel showing COM, Wi-Fi/BT, GPS, USB, LAN, SD, RF1, RF2 ports and power switch

PCTEL SeeGull IBflex 08900S full kit with two magnetic mount antennas, GPS antenna, USB cable, and in-car power adapter

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

Model: 08900S

Manufacturer: PCTEL

In stock: 1

SKU: 3023 4B04

Condition: Used

Price: Sale price £1,185.75

PCTEL SeeGull IBflex rear panel showing COM, Wi-Fi/BT, GPS, USB, LAN, SD, RF1, RF2 ports and power switch

PCTEL SeeGull IBflex complete kit with two magnetic-mount antennas, GPS antenna, USB cable, and power adapter

PCTEL SeeGull IBflex 570MHz-3.8GHz Scanning Receiver 08900S ENH Power Scan Optio

Model: 08900S

Manufacturer: PCTEL

In stock: 1

SKU: 3022 4B04

Condition: Used

Price: Sale price £1,185.75

Agilent N2779A Power Supply front panel showing POWER LED, three probe output connectors and TT Instruments label

Agilent N2779A Power Supply front and right-side view showing ventilation slots and compact grey enclosure

Keysight Agilent N2779A Power Supply

Model: N2779A

Manufacturer: Keysight Agilent

In stock: 2

SKU: 3153 7C02

Condition: Used

Price: Sale price £335.75

EXFO FTB-200 V2 with FTB-5240S-P OSA in open foam-lined wheeled carry case with power adapter and stylus

EXFO FTB-200 V2 front panel showing colour touchscreen booting Windows, EXFO Connect keypad and jog dial

EXFO FTB-200 V2 Mainframe + FTB-5240S-P OSA INB (in-band OSNR) & ADV Options

Model: FTB-200 V2 5240S-P

Manufacturer: EXFO

In stock: 1

SKU: 3108 3D04

Condition: Used

Price: Sale price £1,695.75

Spirent MX2-10G-S4 4-port 10G/1GbE SFP+ test module — front and PCB view showing dual copper heatsinks

Spirent MX2-10G-S4 test module — angled left side view showing full PCB layout and orange heatsinks

SPIRENT MX2-10G-S4 MX2 4-PORT 10G/1GBE SFP+ Cloud Core Dual-Speed 10G 1G

Model: MX2-10G-S4

Manufacturer: Spirent

In stock: 1

SKU: 2832 4C02

Condition: Used

Price: Sale price £2,205.75

EXFO FTB-880V2 FTB-1 Pro battery and module connector PCB assembly, top side view with TT Instruments product ID label 3069

EXFO FTB-880V2 FTB-1 Pro connector board reverse side showing green PCB with multiple ICs and black RF shield strip

EXFO FTB-1 Pro FTB-880V2 Battery and Module Connector Board

Model: Motherboard

Manufacturer: EXFO

In stock: 9

SKU: 3069 7F03

Condition: Used

Price: Sale price £42.50

Viavi NGC_AD_EF_MM1 multimode fiber adapter kit — two units in boxes with orange reference cables laid out

Viavi NGC_AD_EF_MM1 EF multimode adapter kit — full contents including two adapters and multiple reference cables

Viavi JDSU NGC_AD_EF_MM1 Certifier Multimode Fiber Adapters EF Compliant MM

Model: NGC_AD_EF_MM1

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3003 7C03

Condition: New other (see details)

Price: Sale price £595.00

JDSU OLP-55 optical power meter front view with port cover open, TT Instruments product ID 2983 label visible

JDSU OLP-55 BN 2277/01 specification table showing variants from general purpose to ultra high power

Viavi JDSU OLP-55 Optical Power Meter 2277/01 780nm to 1650nm SC PC/APC SM MM

Model: OLP-55

Manufacturer: Viavi JDSU

In stock: 3

SKU: 2983 6C05

Condition: Used

Price: Sale price £51.00

JDSU OLP-55 optical power meter BN 2277/01 front view, display reading -58.92 dBm at 1310nm, port cap open

JDSU OLP-55 BN 2277/01 specification table showing variants 2277/01 through 2277/04 wavelength and power specs

Viavi JDSU OLP-55 Optical Power Meter 2277/01 780nm to 1650nm PC/APC SM/MM

Model: OLP-55

Manufacturer: Viavi JDSU

In stock: 1

SKU: 2980 6C04

Condition: Used

Price: Sale price £80.75

Viavi JDSU FMAE-SC-DUX SC duplex adapter with original JDSU labelled anti-static bag, top-down view

Viavi JDSU FMAE-SC-DUX SC/PC duplex adapter front face showing dual SC connector ports with spring contacts

Viavi JDSU FMAE-SC-DUX SC SC/PC Duplex Adapter for SmartClass Fiber Series

Model: FMAE-SC

Manufacturer: Viavi JDSU

In stock: 1

SKU: 3693 6C02

Condition: Used

Price: Sale price £42.50

Spirent ACC-6069A 40GBE QSFP+ to CFP Adapter front face showing dual QSFP+ ports and product label

Spirent ACC-6069A rear view showing CFP gold-contact edge connector, barcodes and RoHS compliance label

Spirent ACC-6069A 40GBE QDFP+ to CFP Adapter

Model: ACC-6069A

Manufacturer: Spirent

In stock: 2

SKU: 6275 7E04

Condition: Used

Price: Sale price £127.50

Viavi NGC-4500-COAX 75 Ohm F-Type coaxial adapter pair in anti-static bags inside cardboard box with TT Instruments product ID label 6231

Viavi NGC-4500-COAX coaxial adapter pair — rear view showing Certifier label, multi-pin connector interface, CE marking and WEEE symbol, in pink anti-static bags

Viavi Certifier 75 OHM F-TYPE Interface COAXIAL Adapter Set NGC-4500-COAX PAIR

Model: NGC-4500-COAX

Manufacturer: Viavi JDSU

In stock: 1

SKU: 6231 5E02

Condition: New other (see details)

Price: Sale price £212.50

HP Agilent 83430A Lightwave Transmitter front panel with Keysight calibration sticker and TTInstruments product ID tag

HP 83430A Lightwave Transmitter front panel showing analog/digital inputs, optical output controls and 1309.95 nm wavelength label

Keysight Agilent HP 83430A Lightwave Transmitter Option 130 1309.95nm

Model: 83430A

Manufacturer: Keysight Agilent

In stock: 1

SKU: 2913 6E04

Condition: Used

Price: Sale price £165.75

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