serial-port-tester-freeware

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10PCS DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device
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Kentek DB25 25Pin Check Tester Adapter LED Indicator Troubleshoot/Diagnose Cable
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Loopback Adapter Tester Plug Serial DB25-F DB9-F (RS232)
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DB25 25 Pin Check Tester/ Loop Back Tester/ Mini Tester/ Jumper Box Serial RS232
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DB9 to DB25 Serial Loop Back Tester 9Pin to 25Pin Diagnose Serial Port Device
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RS232 Serial Loopback Tester Adapter DB37~DB9pin port Loop Back Lot AMP50
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New Amiga Serial Parallel Port Tester Amiga Test Kit Dongle Adapter 1333
New Amiga Serial Parallel Port Tester Amiga Test Kit Dongle Adapter 1333

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NEW Lot of 2 RJ11 to DB9 WAN Tester Console Serial Cable 5 Foot
NEW Lot of 2 RJ11 to DB9 WAN Tester Console Serial Cable 5 Foot

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New Amiga Serial Parallel Port Tester Amiga Test Kit Dongle Adapter #1333
New Amiga Serial Parallel Port Tester Amiga Test Kit Dongle Adapter #1333

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RS232 Serial Loopback Tester Adapter DB25~DB9pin Female~F port/jack Loop Back
RS232 Serial Loopback Tester Adapter DB25~DB9pin Female~F port/jack Loop Back

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Serial LoopBack Tester DB9 9Pin to DB25 25Pin Sending Receiving Signal Diagnose
Serial LoopBack Tester DB9 9Pin to DB25 25Pin Sending Receiving Signal Diagnose

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DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Cable/Device
DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Cable/Device

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[10X] DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device
[10X] DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device

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LOT10 DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device
LOT10 DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device

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[10X] DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device
[10X] DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device

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10PCS DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device
10PCS DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device

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RS232 Serial Loopback Tester Adapter DB25~DB9pin Female~F port Loop Back $SHdisc
RS232 Serial Loopback Tester Adapter DB25~DB9pin Female~F port Loop Back $SHdisc

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Anritsu MD8475A Signaling Tester 2 Port Fading Simulator Timing & Serial I/O's
Anritsu MD8475A Signaling Tester 2 Port Fading Simulator Timing & Serial I/O's

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DB9/DB25 Serial (RS232) Female Loopback Tester Adapter - CablesOnline TS-LB02
DB9/DB25 Serial (RS232) Female Loopback Tester Adapter - CablesOnline TS-LB02

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DB25 Serial Mini Tester 25Pin Male/Female Troubleshoot/Monitor Device Signal
DB25 Serial Mini Tester 25Pin Male/Female Troubleshoot/Monitor Device Signal

$16.45

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Kentek DB9 to DB25 Serial LoopBack Tester Female/Female Diagnose Data Signal
Kentek DB9 to DB25 Serial LoopBack Tester Female/Female Diagnose Data Signal

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DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Cable/Device
DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Cable/Device

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QVS CC340-MF RS232 (D825) Port Mini-Tester RS232
QVS CC340-MF RS232 (D825) Port Mini-Tester RS232

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HiWonder Serial Bus Servo Controller Communication Tester
HiWonder Serial Bus Servo Controller Communication Tester

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LOT10 DB9 Female/DB25 Female LoopBack Tester Troubleshoot/Diagnose RS-232 Serial
LOT10 DB9 Female/DB25 Female LoopBack Tester Troubleshoot/Diagnose RS-232 Serial

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RS-232 Mini-Tester
RS-232 Mini-Tester

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USB check.net / USB Port Power Tester
USB check.net / USB Port Power Tester

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Kentek DB25 25 Pin Mini Tester Male/Female Troubleshoot/Diagnose Device RS-232
Kentek DB25 25 Pin Mini Tester Male/Female Troubleshoot/Diagnose Device RS-232

$16.45

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LOT10 DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device
LOT10 DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device

$132.71

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10x DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device
10x DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device

$132.72

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Cablemax RS-232 LED Link Tester DB-9 Male to DB-9 Female + 30 DAY WARRANTY!
Cablemax RS-232 LED Link Tester DB-9 Male to DB-9 Female + 30 DAY WARRANTY!

$22.00

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Kentek DB9 9Pin / DB25 25Pin Serial LoopBack Tester Female Troubleshoot/Diagnose
Kentek DB9 9Pin / DB25 25Pin Serial LoopBack Tester Female Troubleshoot/Diagnose

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Allied Timeter Respical T300 Ventilator Tester, software, manual, RS-232 cable
Allied Timeter Respical T300 Ventilator Tester, software, manual, RS-232 cable

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RS-232 Check Tester - VTG computer jack
RS-232 Check Tester - VTG computer jack

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MECHANIC DT3 Data Cable Detection Board USB Cable Tester Short Circuit Test
MECHANIC DT3 Data Cable Detection Board USB Cable Tester Short Circuit Test

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Agilent E2960A Serial Protocol Tester XC Exerciser w/ 2 x N5305A Protocol module
Agilent E2960A Serial Protocol Tester XC Exerciser w/ 2 x N5305A Protocol module

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AC80~260V Energy Meter Voltmeter Ammeter Current Power Tester RS485 Serial-Port
AC80~260V Energy Meter Voltmeter Ammeter Current Power Tester RS485 Serial-Port

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BLACK BOX RS422, X.21, X.27, V. 11 Breakout & Activity Tester Rs232 Monitor Port
BLACK BOX RS422, X.21, X.27, V. 11 Breakout & Activity Tester Rs232 Monitor Port

$50.00

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10x DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device
10x DB25 Male to Female Serial Check Tester LED Indicator Testing RS232 Device

$132.72

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DB9 Female/DB25 Female LoopBack Tester Troubleshoot/Diagnose RS-232 Serial Port
DB9 Female/DB25 Female LoopBack Tester Troubleshoot/Diagnose RS-232 Serial Port

$7.94

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RS-232 Check Tester
RS-232 Check Tester

$10.99

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RS-232/Serial Breakout Box - Pocket Size
RS-232/Serial Breakout Box - Pocket Size

$14.50

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RS232 Breakout Box & Tester RS-232 Looks Unused Multilink MLA1
RS232 Breakout Box & Tester RS-232 Looks Unused Multilink MLA1

$19.95

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2 Pcs USB Cable Tester, Type C Lighting Micro 3 in 1 Test Board
2 Pcs USB Cable Tester, Type C Lighting Micro 3 in 1 Test Board

$15.61

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Vintage RS232 Mini-Tester Serial Computer Test Equipment 2 1/2" Y37
Vintage RS232 Mini-Tester Serial Computer Test Equipment 2 1/2" Y37

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Kentek DB25 25Pin Jumper Box Adapter Molded Tester for Parallel Port connection
Kentek DB25 25Pin Jumper Box Adapter Molded Tester for Parallel Port connection

$12.42

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RS 232 Mini Cable Tester 25 Pin
RS 232 Mini Cable Tester 25 Pin

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Syscard USB Port Tester USBTest 2000 - Used.
Syscard USB Port Tester USBTest 2000 - Used.

$26.87

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Is it me or is it USB? USB micro cable continuity tester, detect fake USB cables
Is it me or is it USB? USB micro cable continuity tester, detect fake USB cables

$10.99

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SPC RS232 Quick Port Tester 85870153
SPC RS232 Quick Port Tester 85870153

$66.77

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FLUKE NETWORKS 990DSL COPPERPRO SERIES 2 BROADBAND LOOP TESTER UNTESTED AS-IS!
FLUKE NETWORKS 990DSL COPPERPRO SERIES 2 BROADBAND LOOP TESTER UNTESTED AS-IS!

$129.99

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/lot TMC2208 USB to Serial Port Module for 3D Printer with
/lot TMC2208 USB to Serial Port Module for 3D Printer with

$8.46

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DT3 USB Cable Tester Data Cable Detection Board Type C Switching Test Board 1 Pc
DT3 USB Cable Tester Data Cable Detection Board Type C Switching Test Board 1 Pc

$10.49

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OEM 9 & 3 Pin Serial Port & Cable - Picometrix Luna Thorlabs Fiber Optics NASA
OEM 9 & 3 Pin Serial Port & Cable - Picometrix Luna Thorlabs Fiber Optics NASA

$7.99

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ATX SATA HDD Power Supply Tester Checker Meter PC Computer Power Supply Measur
ATX SATA HDD Power Supply Tester Checker Meter PC Computer Power Supply Measur

$9.50

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UD11A03 Data Cable Detection Board USB Cable Tester for IOS Android Type-C1471
UD11A03 Data Cable Detection Board USB Cable Tester for IOS Android Type-C1471

$9.04

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Rs-232 mini tester
Rs-232 mini tester

$113.95

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USB to Serial Port Module TMC2208 4 Layers PCB Board for 3D
USB to Serial Port Module TMC2208 4 Layers PCB Board for 3D

$9.05

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Portable Vibration Tester vibration Meter with RS232 USB Data Cable and Software
Portable Vibration Tester vibration Meter with RS232 USB Data Cable and Software

$370.00

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JDSU HST-3000c Color Screen Tester W CUADSL2-TX ANX A
JDSU HST-3000c Color Screen Tester W CUADSL2-TX ANX A

$399.00

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KNTK DB25 Mini Tester Adapter Troubleshoot/Diagnose Device RS-232 Male to Female
KNTK DB25 Mini Tester Adapter Troubleshoot/Diagnose Device RS-232 Male to Female

$16.45

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20/24 Pin ATX PC Computer Power Supply Tester Meter for SATA HDD Floppy CDROM
20/24 Pin ATX PC Computer Power Supply Tester Meter for SATA HDD Floppy CDROM

$10.38

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USB Cable Tester 3 In 1 Test Board Short Circuit Open Circuit Testing Module CST
USB Cable Tester 3 In 1 Test Board Short Circuit Open Circuit Testing Module CST

$13.64

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AC80~260V Energy Meter Voltmeter Ammeter Current Power Tester RS485 Serial-Port
AC80~260V Energy Meter Voltmeter Ammeter Current Power Tester RS485 Serial-Port

$12.31

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Cable TESTER, RS-232 DB9 IN-LINE SIGNAL, Cable Continuity Test 72-9265
Cable TESTER, RS-232 DB9 IN-LINE SIGNAL, Cable Continuity Test 72-9265

$81.41

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Vibration Meter Tester with Displacement 10Hz~1kHz RS232 Software and USB Cable
Vibration Meter Tester with Displacement 10Hz~1kHz RS232 Software and USB Cable

$367.31

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CM500IP SUNRISE TELECOM COAX CABLE TESTER & CABLE MODEM NETWORK ANALYZER
CM500IP SUNRISE TELECOM COAX CABLE TESTER & CABLE MODEM NETWORK ANALYZER

$60.00

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(1 UNIT) ATOLA DISK RECYCLER MULTI-PORT WIPER & TESTER FOR USE SAS/SATA
(1 UNIT) ATOLA DISK RECYCLER MULTI-PORT WIPER & TESTER FOR USE SAS/SATA

$599.97

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Remote Network Cable Tester 4 In 1 Handheld Portable USB BNC RJ11 RJ45 LAN US
Remote Network Cable Tester 4 In 1 Handheld Portable USB BNC RJ11 RJ45 LAN US

$17.26

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USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module
USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module

$1.93

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USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module
USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module

$1.83

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TRS-80 Model III or 4 RS232 serial cable extension
TRS-80 Model III or 4 RS232 serial cable extension

$17.00

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Extremely RARE NEW NetLine 8 PC Serial Network, Complete, Vintage 1986
Extremely RARE NEW NetLine 8 PC Serial Network, Complete, Vintage 1986

$399.95

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USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module
USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module

$1.84

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Fluke Networks 990DSL Copper Pro LOOP TESTER - Without Cable & any Accessories
Fluke Networks 990DSL Copper Pro LOOP TESTER - Without Cable & any Accessories

$375.00

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USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module
USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module

$1.99

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USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module
USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module

$2.05

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Triplett 8075 Camview IP Pro-X CCTV Camera Tester with Poe, Built-In DHCP Server
Triplett 8075 Camview IP Pro-X CCTV Camera Tester with Poe, Built-In DHCP Server

$700.00

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USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module
USB to TTL/UART USB to High Speed Serial Microcontroller Downloader CH343 Module

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Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension
Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension

$138.99

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UTE1003A Intelligent Electric Quantity Measuring Electrical Parameter Tester
UTE1003A Intelligent Electric Quantity Measuring Electrical Parameter Tester

$406.99

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Vertical Double Caliber Haze Meter Transmittance Tester With Computer Software
Vertical Double Caliber Haze Meter Transmittance Tester With Computer Software

$1746.00

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UTE1003A Intelligent Electric Quantity Measuring Electrical Parameter Tester
UTE1003A Intelligent Electric Quantity Measuring Electrical Parameter Tester

$418.94

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UTE1003A Intelligent Electric Quantity Measuring Electrical Parameter Tester
UTE1003A Intelligent Electric Quantity Measuring Electrical Parameter Tester

$403.65

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3 Angle Gloss Meter 20 60 85 Degree Glossmeter with USB/RS-232 Interface
3 Angle Gloss Meter 20 60 85 Degree Glossmeter with USB/RS-232 Interface

$469.09

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Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension
Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension

$193.61

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Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension
Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension

$122.54

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Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension
Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension

$193.81

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Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension
Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension

$128.99

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Full Light Transmittance Measurement Hazemeter Haze Meter Haze Tester for Glass
Full Light Transmittance Measurement Hazemeter Haze Meter Haze Tester for Glass

$1780.00

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Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension
Digital Display Tension Machine Push Pull Gauge Tester Force Gauge Tension

$90.29

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Dual Aperture Haze Meter Hazemeter Full Light Transmittance Measurement Tester
Dual Aperture Haze Meter Hazemeter Full Light Transmittance Measurement Tester

$2335.00

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Lab Horizontal Haze Meter Transmittance Gauge Tester With USB Data Output Device
Lab Horizontal Haze Meter Transmittance Gauge Tester With USB Data Output Device

$2200.00

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Dual Aperture Haze Meter Tester Hazemeter Light Transmittance Measurement 20 8mm
Dual Aperture Haze Meter Tester Hazemeter Light Transmittance Measurement 20 8mm

$2100.00

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Hazemeter Haze Meter Light Transmission Tester Touch Screen Film Glass Plastic
Hazemeter Haze Meter Light Transmission Tester Touch Screen Film Glass Plastic

$2200.00

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Digital Haze Tester Meter Transmittance Gauge Meter For Glass Plastic Film
Digital Haze Tester Meter Transmittance Gauge Meter For Glass Plastic Film

$1295.00

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Light Transmission Tester Touch Screen Haze Meter Hazemeter for Glass Plastic
Light Transmission Tester Touch Screen Haze Meter Hazemeter for Glass Plastic

$1825.00

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QUICK TECH ULTRA-XINC89 SERIAL PORT TESTER
QUICK TECH ULTRA-XINC89 SERIAL PORT TESTER

$10.00

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[10pc] DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device
[10pc] DB25 Male to Female Serial Mini Tester Troubleshoot/Diagnose RS232 Device

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Fisher Pierce 1144A Polyphase Circuit Analyzer With RS232 Port
Fisher Pierce 1144A Polyphase Circuit Analyzer With RS232 Port

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