Testers & Calibrators
testers & calibrators — pre-owned
Browse 18,671 testers & calibrators — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

Hickok Western Electric KS-15750-L1 Vintage Tube Tester (includes original docs)
We tested a 6V6GT and everything looked OK. Replace a few capacitors and this will be one of the nicest tube testers out there!

Kaye RTD IRTD-400 Temperature Reference
Last calibrated in 2024

Veeco 50 KA Step Height Standard
This is a Veeco 50 ,000 Angstrom Step Height Standard. Used normally for metrologic / calibration applications. Does not have certificate of calibration. Very good condition

Singer Gertsch Ratio Tran RT-61 Rack Mount Ratio Transformer
What you see in the photos is what you are expected to receive. If it is not in the photos it is not included with the sale.
You save $32.50

2x Fluke Networks DSX-8000 CAT 8 2000 MHz CU Cable Analyzer Module Set Modules

Hickok Model 539C Mutual Conductance Tube Tester - Fully Tested & Working
The Hickok Model 539C Mutual Conductance Tube Tester is a precision tool designed for testing the performance of vacuum tubes in electronic devices. With the trusted Hickok brand behind it and a fully tested and working guarantee, this tube tester is ideal for professionals in the electronics industry looking to ensure the quality of their equipment. The model 539C offers accurate and reliable results, making it a valuable asset for troubleshooting and maintenance purposes. Tubes as of 4/26/2026 have been tested on this machine . We aren’t tune experts but do believe the machine is functional properly

FLUKE NETWORKS DTX-LT CABLE ANALYZER W/ DTX-MFM2 / DTX-PLA002 / DTX-CHA001A Read
ONE (1) DTX CHA001A CAT 6/Class E Channel Adapter. -Two (2) DTX MFM2 Multimode fiber modules. -Two DTX- PLA002 CAT 6A permanent link adapters. -Item: FLUKE NETWORKS DTX-1800 CABLE ANALYZER W/ DTX-MFM2 / DTX-PLA002 / DTX-CHA002.

Fluke Networks cableiq cable iq qualification tester ciq-100 w/ cable
Here is a Fluke Networks ciq-100 cableiq qualification tester.

TREND Networks R156006 SignalTEK CT Data Cable Transmission Tester Good Battery
Crayon, marker, pen, or pencil marks. Your item may contain visible or nonvisible imperfections including but not limited to the following Conditions is used preowned in working order. IF NOT SEEN IN PICTURES ITS NOT INCLUDED.

3M DYNATEL 2273 CABLE/PIPE/FAULT LOCATOR SET (100% TESTED)
Receiver and Transmitter are Loaded with:577Hz, 8kHz, 33kHz, 200kHz (passive 60Hz L60Hz,120Hz and 31kHz). This is a great set at a great price! This set is in "GREAT" condition, just a few scrapes from previous use.

COM-POWER PAM-103A PREAMPLIFIER
Item has general signs of normal wear and tear which may include scratches. • Power Adapter Included. Item Condition. Great sale, Get it now before its gone! The listed prices do not apply.

SUPERB SENCORE TC142 MIGHTY MITE V TUBE TESTER & TM116 ADAPTER INSTRUCTIONS
YOU GET A DUPLICTATE ORIGINAL SPIRAL BOUND MIGHTY MITE MANUAL, THE TC142 SERVICE/INSTRUCTION MANUAL, THE FACTORY SETUP BOOKLET, THE TM116 INSTRUCTION MANUAL AND BOTH TM116 SETUP CHARTS. THE TM116 ADAPTER EXPANDS THE TC142 TO TEST COMPACTRONS, NUVISTORS, NOVARS AND 10 PIN TUBES.

Micronta 22-012 Vacuum Tube Tester Radio Shack Tandy Vintage Untested
What you see in the photos is exactly what you will receive. Please review all photos carefully for condition and details. Packaged carefully and shipped quickly. Feel free to message me with any questions before purchase. If there are any issues after delivery, please contact me right away so it can be resolved.

VIAVI ONX CATV D31 Signal Analyzer S-4220-1012 Broadband Tester Meter
Functionality: F4 Hardware Functional.

3M DYNATEL 2273 CABLE/PIPE/FAULT LOCATOR SET (100% TESTED)
Receiver and Transmitter are Loaded with:577Hz, 8kHz, 33kHz, 200kHz (passive 60Hz L60Hz,120Hz and 31kHz). This is a great set at a great price! This set is in "GREAT" condition, just a few scrapes from previous use.

3M DYNATEL 2273 CABLE/PIPE/FAULT LOCATOR SET (100% TESTED)
Receiver and Transmitter are Loaded with:577Hz, 8kHz, 33kHz, 200kHz (passive 60Hz L60Hz,120Hz and 31kHz). This is a great set at a great price! This set is in "GREAT" condition, just a few scrapes from previous use.

Starrett - Repeat Reading Gage/Repeat-o-meter Surface Plate Calibration - QG42
Model 81320.

EDC Electronic Development Corporation MV106G DC VOLTAGE STANDARD
INVENTORY: CTEK B12-3.

VINTAGE Western Electric ( Hickok ) KS-15750 Tube Tester working L1
Good condition Western Electric / Hickok tube tester with operational scroll wheel. Time for calibration and no longer needed so its looking for a new home.

Fluke 718 100g Pressure Calibrator ..Comes on~ Cosmetic on Case
Unit itself is fine.Seal on back has been broken but seems normal on this model from use. has not been opened.

IET Labs CS-300 Capacitance Substituter Decade Box
For sale is anIET Labs CS-300 Capacitance Substituter. Type: Capacitance Substituter / Decade Box. IET Labs CS-300 Substituter. Manufacturer: IET Labs. Laboratory and bench testing use. All switches turn smoothly.

Vintage 1950’s EICO Tube Tester Model 625 w/ Tube Tester Adapter model 610
Tube tester has been sitting for a couple of years. Put away in good working condition. Powers right on. Chord is in good original condition. It is retractable. Serial 71349. See pictures.

King Nutronics Model 3750 Pressure /Vacuum Calibration Hand Pump 10,000 psi
The connection points are clean and in good condition. There are a few scuff marks from previous use (see photos). Includes everything in the pictures and nothing else. -008-7/25(11-24BAT921)(36886R1/87)(H12).

Fluke Networks Pro3000™ Analog Tone and Probe Kit Tested working FREE SHIPPING
The Fluke Networks Pro3000™ Analog Tone and Probe Kit is a high-quality cable tester and tracker designed for professionals in the business and industrial sectors. This kit includes a Fluke Networks brand analog tone generator and probe, allowing users to accurately detect and diagnose issues with cables and connections. Ideal for test, measurement, and inspection purposes, this product ensures reliable performance and precision in detecting analog signals for efficient troubleshooting and maintenance. Tested and working
You save $0.98

Harris TS22L Lineman Telephone Test Set Amplified Speaker
You will receive one in similar condition to the one in the photos with one of the serial numbers listed above. Model TS22L. Buy now and save! PICK UP OPTION. Pick up procedure is as follows.

Stanford Research Systems FS725 with Rb Failure
ST2 0 (no error). ST6 0 (no error). ST4 1 Frequency lock disabled.

HP 58503A Frequency Time GPSDO standard with all accessories, date OK, #26001

Fluke ESA620 Electrical Safety Analyzer
It performs essential checks on leakage currents, grounding, and insulation to ensure compliance with safety standards. Model: ESA620. MPN: ESA620. Sewing Machine. 6" Stainless Steel Pneumatic High Vacuum Gate Valve.
You save $400.00

Complete Kit JDSU DSAM-3300 XT 3300 Cable Tester DOCSIS 3.0 Extended Battery
JDSU DSAM-3300 XT 3300 Cable Tester DOCSIS 3.0 w/ Extended Battery and Case/Power supply See all pictures for condition Tested to boot and navigate screens only DSAM-3300XT DOCSIS 3.0 Includes extended battery, protective carry case, and power supply Sold as-is Thank you!

GE Druck Multifunctional Calibrator, Genii, DPI620G
GE Druck Multi-functional Calibrator, Genii, DPI620G. Item being sold is pictured above and also comes with a working battery and power cable. Item has not been fully tested but looks to be in good working order. Selling the item in the picture and power cable/battery. We do have 2 of these available. Selling as is, no warranties, no returns, and all sales final.

Progressive Electronics 521 Wire Locator/valve Locator UNTESTED PLEASE READ
The handheld piece has a new 9V battery and powers up no problem I don’t have 6V batteries to power up and test the main unit. One connector for the battery isn’t as clean as the others and might need replaced I’m selling this item AS IS Please see all photos to assess condition

Data Precision 8200 Programmable DC Voltage Current Calibrator GPIB WITH OPTIONS
Note taking was diligent. We can not confirm, so all units are sold as is.

Fluke 5100A 5100B 5101B Calibrators, Lot of 3, A12/A13 Wideband Cards, Extras
A working 5100B could likely be made from swapping boards and parts. Sold as-is! Two have Wideband cards installed, one has the front-panel tape recorder option. The third unit does not power up, the front power switch has been disconnected.

NIce EICO Model 625 tube tester - Working
The case is rusty, appears to be working same or next day free shipping

3M DYNATEL 2273 CABLE/PIPE/FAULT LOCATOR SET (100% TESTED)
Receiver and Transmitter are Loaded with:577Hz, 8kHz, 33kHz, 200kHz (passive 60Hz L60Hz,120Hz and 31kHz). This is a great set at a great price! This set is in "GREAT" condition, just a few scrapes from previous use.

Viavi Jdsu ONX-580 One Expert ONX-BDCM-DSL-BONDED ****3 SETS****
BDCM -DSL -BONDED MODULE. GOOD BATTERY.

Fluke 7-300 Electrical Tester Multimeter Meter !
There is a screen protector on the display and the display is flawless beneath.

Fluke 700PD6 Pressure Module
Part 33815.

Phase II PHT-1900, Portable Hardness Tester with D Device
Used like new hardness tester. Lab kept and used very little. Great for your lab or desk.

Viavi JDSU ONX-620 DOCSIS 3.1 CATV Cable Meter Tester
Working Condition . Clean. Ready to use. Includes OneExpert ONX620 & Case. *Charger Not Included*