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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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Fairview FMC0222085-36 SMA to SMP 36-inch blue coax cable assembly with identification label and black SMP dust cap

Fairview FMC0222085-36 SMA male connector end close-up showing gold pin, stainless steel body and threaded coupling nut

Fairview FMC0222085-36 Cable Asembly SMA to SMP 50 Ohms 18 GHz 36''

Model: FMC0222085-36

Manufacturer: Fairview

In stock: 4

SKU: 3906 6D05

Condition: Used

Price: Sale price £29.75

Save £2,000.00

Heidelberg Engineering SPECTRALIS HRA+OCT full system setup with HP Z2 PC, NEC monitor, and mobile trolley

SPECTRALIS HRA+OCT module comparison chart showing standard and optional imaging modules across product variants

Heidelberg Engineering HRA + OCT Spectralis Optometry Imaging System

Model: HRA + OCT Spectralis

Manufacturer: Heidelberg Engineering

In stock: 1

SKU: 7010 FL00

Condition: Used

Price: Sale price £13,995.00 Regular price £15,995.00

Keysight N6314A Type-N 50 ohm RF test port cable, full length view showing both male N-type connectors

Keysight N6314A Type-N male connector close-up showing gold centre pin and threaded coupling nut

Keysight N6314A Test Port Cable, Type-N, 50 ohm

Model: 8121-N6314A

Manufacturer: Keysight

In stock: 2

SKU: 3904 6D05

Condition: Used

Price: Sale price £127.50

Keysight 8121-1072 50GHz flexible RF cable 36-inch 2.4mm f-m, full length overhead view on white background

Keysight 8121-1072 cable label close-up showing part number 8121-1072, W.L. Gore 3GW40, SN04224150

Keysight 50GHz Flexible cable 2.4mm(f)-(m) 36.0in 8121-1072

Model: 8121-1072

Manufacturer: Keysight

In stock: 1

SKU: 3903 7F02

Condition: Used

Price: Sale price £212.50

Rohde & Schwarz NRP-Z2 1146.6750.10 10-metre sensor extension cable coiled, showing both push-pull connectors

Rohde & Schwarz NRP-Z2 female push-pull multi-pin connector end with red orientation dot close-up

Rohde & Schwarz NRP-Z2 1146.6750.10 10 Meter sensor extension cable NRP-Zxx Seri

Model: NRP-Z2

Manufacturer: Rohde & Schwarz

In stock: 1

SKU: 3907 6D05

Condition: Used

Price: Sale price £106.25

Rohde & Schwarz NRP-Z2 1146.6750.05 5-metre sensor extension cable coiled on white background

NRP-Z2 1146.6750.05 push-pull connector close-up showing part number barcode label and strain relief

Rohde & Schwarz NRP-Z2 1146.6750.05 5 Meter sensor extension cable NRP-Zxx Serie

Model: NRP-Z2

Manufacturer: Rohde & Schwarz

In stock: 2

SKU: 3901 7F02

Condition: Used

Price: Sale price £80.75

Fairview SCE18110101-12 D SMA male-to-male LL142 coax cable assemblies — pair shown, green FEP jacket with black heat-shrink ends and dust caps

Fairview SCE18110101-12 D close-up of SMA male connectors with gold centre pins, stainless steel bodies, and black protective dust caps removed

Fairview SCE18110101-12 D SMA M to SMA M Cable LL142 Coax in 12'' with LF Solde

Model: SCE18110101-12

Manufacturer: Fairview

In stock: 6

SKU: 3898 4E04

Condition: Used

Price: Sale price £29.75

Fairview Microwave SCE18110101-36 SMA Male to SMA Male LL142 RF cable assembly, full length overhead view

Fairview Microwave SCE18110101-36 close-up of both SMA male connectors with branded black strain-relief boots

Fairview SCE18110101-36 Z

Model: SCE18110101-36

Manufacturer: Fairview

In stock: 1

SKU: 3900 7F02

Condition: Used

Price: Sale price £29.75

Keysight N4871A matched pair coaxial cables, both 91 cm units shown with red protective dust caps

Keysight N4871A cable label close-up showing part number N4871-61620, MFR 541Q2, SN12647546, Country of Origin USA

Keysight Technologies N4871A 3.5mm to 3.5mm Matched Pair Cable Kit

Model: N4871A

Manufacturer: Keysight Agilent

In stock: 2

SKU: 3897 4E04

Condition: Used

Price: Sale price £165.75

Keysight Agilent 85131F 3.5mm flexible test port cable full view with red and black connector caps

Agilent 85131F PSC-3.5mm female test port connector end face close-up showing gold-plated body

Keysight Agilent 85131F Flexible 85131-60013 3.5mm Test Port Cable DC-26.5GHz

Model: 85131F

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3894 6F02

Condition: Used

Price: Sale price £212.50

Keysight N2823A 1m phase-matched coaxial cable pair coiled with red velcro tie and protective red end caps

Close-up of Keysight N2823A labels showing model number and serial numbers 2104003 and 2104004

Keysight Agilent N2823A Cable Assembly, Coaxial Phased-matched Pair, 1 m

Model: N2823A

Manufacturer: Keysight Agilent

In stock: 2

SKU: 3896 SF01

Condition: Used

Price: Sale price £2,035.75

Tektronix 174-1427-00 50 Ohm SMA(m) to SMA(m) coaxial cable assembly, full length coiled view

Tektronix 174-1427-00 coaxial cable close-up of part number label reading 174-1427-00

Tektronix 174-1427-00 Coaxial Cable Assembly, 50 Ohm, SMA(m) Both Ends, 20 L

Model: 174-1427-00

Manufacturer: Tektronix

In stock: 6

SKU: 3895 6F02

Condition: Used

Price: Sale price £29.75

Viavi Trilithic Seeker HL Kit P/N 2011722000 with receiver, transmitter, carry case, cables and power adapters

Trilithic Seeker HL receiver front view with LCD display and Seeker HL Transmitter showing ON/OFF and OUTPUT LEVEL controls

Viavi Trilithic Seeker HL Receiver & Transmitter Kit

Model: HL Kit

Manufacturer: Viavi Trilithic

In stock: 1

SKU: 4072 4C01

Condition: Used

Price: Sale price £212.50

Viavi JDSU OLA-55M Fiber Optical Level Attenuator 1260-1650 nm SM 2280/22 SC/APC

Viavi JDSU OLA-55M Fiber Optical Level Attenuator 1260-1650 nm SM 2280/22 SC/APC

Viavi JDSU OLA-55M Fiber Optical Level Attenuator 1260-1650 nm SM 2280/22 SC/APC

Model: OLA-55M

Manufacturer: Viavi JDSU

In stock: 2

SKU: 4029 6E05

Condition: Used

Price: Sale price £505.75

HP Agilent 8492A 10 dB APC-7 attenuator set of 3 with red carry case, overhead angle view

HP Agilent 8492A attenuator set stored in open red plastic carry case with 3-slot foam insert

Keysight Agilent 8492A 10 DB Coaxial Fixed Attenuator Set DC to 18GHz

Model: 8492A

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3956 6G01

Condition: Used

Price: Sale price £106.25

EXFO FOT-930 MaxTester II optical loss tester with carry case, user guide, adaptor cap and mains charger

EXFO FOT-930 MaxTester II front view showing LCD display, keypad, FasTesT button and top-mounted ports

Calibrated EXFO FOT-930 MaxTester II Optical Loss Tester 1310/1550/1625 SM OLT

Model: FOT-932-4

Manufacturer: EXFO

In stock: 1

SKU: 4054 3B03

Condition: Refurbished

Price: Sale price £1,185.75

Keysight Y1701A Option 001 kit contents laid out: three semi-rigid cables, port caps, Rosenberger bag, and Quick Start Guide

Keysight Y1701A Opt 001 close-up of three P937xA semi-rigid SMA/SMB interconnect cables and four port protection caps

Keysight Agilent Y1701A Multiple USB Instruments Configuration Kit Opt 001

Model: Y1701A

Manufacturer: Keysight Agilent

In stock: 2

SKU: 3952 6F04

Condition: New other (see details)

Price: Sale price £63.75

Keysight Agilent 1250-1748 3.5mm male to male straight RF adapter, full side view showing gold body

Keysight Agilent 1250-1748 3.5mm male connector end-on view showing centre pin and gold-plated body

Keysight Agilent 1250-1748 Adapter 3.5mm (m) - 3.5mm (m) DC - 26.5 GHz Straight

Model: 1250-1748

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3954 6G01

Condition: Used

Price: Sale price £106.25

Keysight 85052-60014 3.5mm male-to-male RF adapter standing upright, SN 89341 label visible, gold body

Keysight 85052-60014 3.5mm m-m adapter lying horizontally, both male connector ends visible, SN label shown

Keysight 85052-60014 3.5MM (m) to 3.5MM (m) Adapter

Model: 85052-60014

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3965 7D04

Condition: Used

Price: Sale price £127.50

Keysight 11901A 2.4mm to 3.5mm adapter serial 14427 shown upright beside clear protective storage tube with red cap

Keysight Agilent 11901A 2.4 mm (m) to 3.5 mm (m) DC to 26.5 GHz

Model: 11901A

Manufacturer: Keysight Agilent

In stock: 2

SKU: 3970 7D04

Condition: Used

Price: Sale price £127.50

Viavi JDSU FCLT-U25 CleanBlast 2.5mm bulkhead cleaning tip front view showing nozzle and knurled collar

Viavi JDSU FCLT-U25 CleanBlast tip bottom view showing 6-hole ferrule contact face and O-ring seal

Viavi JDSU FCLT-U25 CleanBlast Tip for 2.5mm ferrules

Model: FCLT-U25

Manufacturer: Viavi JDSU

In stock: 1

SKU: 4025 4E03

Condition: Used

Price: Sale price £80.75

Keysight CX1102A dual-channel current sensor kit in open hard carry case with foam, accessories and both sensor heads

Keysight CX1102A main sensor unit with cable and Primary and Secondary channel heads laid out flat

Keysight CX1102A Dual Channel Current Sensor 100MHz 1A For CX3324A Oscilloscope

Model:

Manufacturer: Keysight

In stock: 1

SKU: 3925 6D04

Condition: Used

Price: Sale price £1,695.75

Agilent 86112A 20 GHz Dual Channel Electrical Module front panel, showing dual 3.5 mm 50 Ω inputs and probe power connectors

Agilent 86112A rear panel showing D-sub connector, model label 86112A CFG001 SER MY42510485, Made in Malaysia

Keysight Agilent 86112A Dual Channel 20 GHz Electrical Module 3.5 mm 50 Ohm

Model: 86112A

Manufacturer: Agilent Keysight

In stock: 1

SKU: 3930 6E03

Condition: Used

Price: Sale price £1,270.75

Keysight 11904S 2.4 mm to K adapter set open wooden case with 4 adapters, torque wrench and spanner

Keysight 11904S four 2.4 mm to 2.92 mm K adapters side view showing gold and silver bodies with serial numbers

Keysight Agilent 11904S 2.4 mm-2.92mm - K Adapter Set DC-40 GHz

Model: 11904S

Manufacturer: Keysight Agilent

In stock: 1

SKU: 3933 6D03

Condition: Used

Price: Sale price £845.75

Keysight Z5623A-K20-FG RF cable 36 inch with original Keysight Technologies box and anti-static bag

Keysight Z5623A-K20-FG 3.5mm RF cable 8121-0924 full length view showing purple woven jacket and both connectors

Keysight Z5623A-K20-FG 3.5 mm (m) to (m) RF Cable, 36 inches 8121-0924

Model: Z5623A-K20

Manufacturer: Keysight

In stock: 1

SKU: 3982 7D05

Condition: Used

Price: Sale price £85.00

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

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 £29.75

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 £51.00

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 £29.75

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 £1,270.75

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

Model: MPOLP-85P MPOLS-84P

Manufacturer: Viavi JDSU

In stock: 1

SKU: 4016 3A02

Condition: Used

Price: Sale price £2,895.00

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 £90.00

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 £165.75

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 £675.75

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 £1,895.00

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 5E03

Condition: Used

Price: Sale price £165.75

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

Save £1,000.00

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 £4,995.00 Regular price £5,995.00

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 6F03

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

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