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  • Tenma 72-6948 Audio Impedance Meter

    Active device is essential for reliable installation of background music and paging systems in residences, offices buildings and public areas. Avoid costly service calls and amplifier damage by verifying actual speaker system impedance prior to operation. Unlike conventional volt/ohm meters, which measure DC resistance, this unit utilizes an internal 1KHz oscillator to measure true impedance. Accurately measure speaker lines that utilize impedance matching volume controls, switchers, transformers and passive crossovers Because this unit accurately measures up to 20Kohm, it may also be utilized with 25V, 50V, 70V, and 100V speaker line transformers in commercial installations (information included in the manual) Large digital display features 1" characters for easy viewing Rotary selector provides 200Ω, 2KΩ and 20KΩ scales Rugged, double insulated case is CATIII rated for use up to 200V Dimensions: 3" (H) x 7"(W) 3-1/4"(D) Includes: Test leads, carry case and owners manual Requires six "AA" batteries, not included

    • ASIN: B008BW9MI0
    • Brand: Tenma
    • ASIN: B008BW9MI0
    • UPC: 610079984240
    • Part No: 72-6948

  • allsun EM480B Digital Handheld Megohmmeter Insulation Resistance Tester Digital Audio Impedance Tester Speaker Voice Resistor Ohmmeter LCD Backlight Yellow

    GENERAL INSTRUCTIONEM408B is a precise measurement instrument that specially applied in measuring audio impedance.Applied in many wide application, such as measuring the impedance of loud speaker,a set of soundssystem,home theater and commercial audio sytem. Features1.True measurement of speaker systems actual impedance at 1kHz2.Three test ranges (20Ω/200Ω/2000Ω)allow testing of home theater and commercial sound systems.3.Convenient protable battery operation. 4.Low battery indication 5.Data hold function6.Timer function for easier operation. The timer can last about 30 seconds minutes after users press TEST button.7.Auto power off: after about 15 minutes of nonz- use Front Panel:*Display LCD*"Test" button*"Lock" key*"Hold" key*Backlight key*Function/tange switch*LED indicator*Current terminal*Voltage terminal*Grounding voltage test*Input terminal for grounding voltage testSPECIFICATION Display: LCD 3 1/2 digits (2000 counts), with unitData Hold Indication: H symbol appears on the displayPower supply: 9V DC (6 x 1.5V AA battery) (Exclude) Accuracy is specified for a period of one year after calibration and at 18℃ to 28℃, with relative humidity

    • ASIN: B07BJYQZTJ
    • Color: Yellow
    • Brand: allsun
    • ASIN: B07BJYQZTJ
    • UPC: 788537552734
    • Part No: em480b

  • ALLOSUN Audio Impedance Tester Digital LCD Insulation Resistance Megohmmeter Meter Tester with Bag

    This instrument is accurate, reliable and easy to operate. For insulation resistance test, you can change the test voltage among 250V, 500V and 1000V. it can also be used to test ACV, resistance which is less than 200Ω, and test for continuity. You can use it to test transformer, motor, cable, switch, electrical appliance as well as to do insulation resistance test. Features 1.True measurement of speaker systems actual impedance at 1kHz 2.Three test ranges (20Ω / 200Ω / 2000Ω) allow testing of home theater and commercial sound systems. 3. Convenient portable battery operation. 4.Low battery indication 5. Data hold function 6.Timer function for easier operation. The timer can last about 30 seconds minutes after users press TEST button. 7. Auto power off: after about 15 minutes of non-use. Technical Specifications Display: LCD 3 1/2 digits (2000 counts), with unit Data Hold Indication: H symbol appears on the display Power supply: 9V DC (6 x 1.5V AA battery) (Not provided by seller) Accuracy is specified for a period of one year after calibration and at 18℃ to 28℃, with relative humidity Accuracy specifications take the form of : ±([% of Reading] + [number of Least Significant Digits])  Range: 20Ω / 200Ω / 2000Ω  Resolution: 10mΩ / 100mΩ / 1Ω  Accuracy: ± (2%+2) ...

    • ASIN: B013QKIGU6
    • Brand: ALLOSUN
    • ASIN: B013QKIGU6
    • UPC: 788537553533
    • Part No: EM480B

  • POE IP Camera CCTV Tester Security Camera with Monitor Systems -1080p 7" Touch Screen LCD IPS 4k Monitor - 16G TF POE HDMI RJ45 TDR Network Cable Tester WiFi Ptz Analog Audio Osd Cameras

    1)Screen upgrade more high-definition, resolution 1920 × 1200, more high-definition delicate 2)Battery upgrade, thickening 7000mA / 7.4V polymer lithium battery, more durable 3) 4K H265, H264, MPEG4 network camera main stream test, clear and smooth, completely reduction high-definition picture quality 4) HDMI high-definition signal input, Test DVR / NVR recorder 5)Support TVI3.0, maximum 5MP 2560*[email protected], support zoom、photo、video、 playback. Support coaxial view control menu call 6)Support CVI3.0, maximum 4MP 2560*[email protected], support zoom、photo、video、 playback. Support coaxial view control menu call 7)Support CVI3.0, maximum 5MP 2560*[email protected], support zoom、photo、video、 playback. Support coaxial view control menu call 8) New Desktop design, convenient and beautiful, humanized design 9) Open source, can install Android software, such as QQ、WeChat, etc. 10)Support wireless WIFI hotspots, easy connection test wireless WIFI camera 11)Support the new version of HIKVISION IP camera, add ONVIF agreement, the new HIKVISION SADP tool 12. Built-in 7.4V 5000mAh high capacity rechargeable Polymer lithium ion battery, PoE 48V/24W standard power supply output,output power 12V/24V Package Includes: 1 Pcs 7inch touch screen IP/ CVBS Tester 1 Pcs Adapter DC12V 2A ...

    • ASIN: B01HBCZ7ZW
    • Color: Grey
    • Brand: GXA
    • ASIN: B01HBCZ7ZW
    • UPC: 758330082141
    • Part No: K700S

  • Fluke Networks CIQ-100 Cable Tester

    CABLEIQ QUALIFICATION TESTER

    • ASIN: B0007RTPBQ
    • Brand: Fluke Networks
    • ASIN: B0007RTPBQ
    • UPC: 787416108574
    • Part No: MS2-TTK

  • Dayton Audio DATS V2 Computer Based Audio Component Test System

    The most complete and easy-to-use audio test system toolkit is now better than ever! Dayton Audio's DATS V2 is a powerful, versatile measurement and analysis device -- now with improved performance and stability!

    • ASIN: B007Q2NRU0
    • Brand: Dayton Audio
    • ASIN: B007Q2NRU0
    • UPC: 844632094255
    • Part No: 390-806

  • EM480B Audio impedance tester test ranges 20/200/2000 resistance meter 1KHz resistance tester

    Note : This package does not include batteries. Due to new rules of China Post Air, parcels must not include batteries, otherwise it will not get through the custom. FEATURES >>> 1. True measurement of speaker systems actual impedence at 1KHz. 2. Three test ranges (20/200/2000Ω) satisfy the testing requirement in home theater and commercial sound systems. 3. Convenient and portable battery operation. 4. Low battery indication 5. Data hold function 6. Timer function: this timer can last about 30 seconds after users press Test button 7. Auto power off: after about 15 minutes of non-use SPECIFICATION >>> 1. Range: 20Ω/200Ω/2000Ω 2. Resolution: 10mΩ/100mΩ/1Ω 3. Power Supply: AC 110V/220V ±10%, 50/ 60HZ

    • ASIN: B07BWMMWFM
    • Brand: YARUIFANSEN
    • ASIN: B07BWMMWFM
    • UPC: 641055913152

  • Capacitor Ohm Meter, KKmoon MESR-100 ESR Capacitance Ohm Meter, Professional Measuring Capacitance Resistance Capacitor Circuit Tester

    ❤❤This MESR-100 V2 auto-ranging capacitor ESR and low Ohm meter measuring range from 0.001 to 100.0R, support in circuit testing. Using true 100 KHz sine wave to measure the ESR value, which is equal to the testing method of capacitor manufacturer.❤❤Features: Dual terminal, for fast and easy inspect general capacitor or resistor, a printed ESR table for fast check. Specifications: Range         Accuracy(After zero,     Refresh Time(Manual Mode)            tested with 1,10,100R    Auto mode take 0 to 2s, more time            resistor)            depends on capacitance value. 0.000 to 1.000R  1%+2Digit             ~0.4s 1.000 to 10.00R  1%+1Digit             ~0.4s 10.00 to 100.0R  2%+1Digit             ~0.4s Accuracy: Up to 1% (detail on above table) Wide Measurement Range: >1uF High Resolution: 4 digit, or 0.001Ohm @ 1 Ω range Measuring voltage: 80 Hours Item Size: Approx 14.5 * 8 * 3cm / 5.7 * 3.1 * 1.2in Item Weight: Approx 139.6g / 4.9oz Package Size: Approx 17 * 9 * 5cm / 6.7 * 3.5 * 2.0in Package Weight: Approx 218g / 7.7oz❤❤Package List: 1 * Capacitance Meter 2 * Test Clips 1 * User Manual

    • ASIN: B0779D67SB
    • Brand: KKmoon
    • ASIN: B0779D67SB
    • UPC: 798881670350
    • Part No: FEK7942175384642NY

  • PANTONG LTS-48 TELEPHONE TEST SET FULLY DATA SAFE DSL FILTER BUTT SET

    For professionals who need conventional robust telephone test set with fully data safe and DSL filter : -Mode dialing DTMF / Pulse -Mode Operation : Talk, Ring, Monitor -Line Polarity independent and Polarity Indication -High Shock/Drop Resistance Housing -1 Last Number Redialing and 10 speed dial (repertory memory) -Mute -Flash -Data Safe High Impedance Monitor -High impact Nylon 6/6 case -Non-conductive safety Belt Clip and Hanging Loop -Protection against high volt and transient induced by AC -Off-hook Datasafe with DSL filter -High standard Testcord set with bed-of-nails and piercing pin clips. -Tel. line powered ( No requires battery)

    • ASIN: B077XJH4HT
    • Brand: PANTONG
    • ASIN: B077XJH4HT

  • 7 Inch Touch Screen 5 in 1 CCTV Tester Support Upt to 4K IP Camera & 720P/1080P/3.0mp/4.0mp/5.0 Megapixel AHD, TVI, CVI & CVBS Analog Camera, with Keyboard/IP Discovery/Rapid ONVIF/WiFi/APP

    Feature:7 inch IPS touch screen,1280*800 resolution H.264 and H .265 ,4K IP Camera video display via mainstream Up to 8MP TVI/CVI/AHD/CVBS test, 3840 x 2160 15 FPS,4xzoom ,video record and playback ,coaxial PTZ control and call camera OSD menu Rapid video, just by one key to detect all network cameras and auto display Rapid ONVIF, auto log in and display image from the camera, activate Hikvision camera, Network PTZ controller (ONVIF), and also can create testing report IP and analog testing at the same time , converter test from analog to digital with dual test window IP & CVBS Screen management, change function's icons order, create new directory Shortcut button, drop-down menu , can select PoE power ,IP setting, WLAN switch, HDMI IN functions etc in any interface Improvement cable tester, UTP cable, telephone cable etc order and connectivity test, with testing report RJ45 cable TDR test, test cable pair status, length, attenuation, reflectivity, impedance, skew etc TesterPlay(screen projection): tester, android version mobile phone and PC display at the same time Screen lock, password lock and pattern lock are optional HDMI signal input to display image ,record and snapshot HDMI output ,support 1080P CVBS loop test , the tester send and receive color bar generator sig...

    • ASIN: B07D2CTK63
    • Brand: EVERSECU
    • ASIN: B07D2CTK63
    • UPC: 605621342852

  • Horizon Tool 74 Amp Hound Voltage Drain Tester

    • ASIN:
    • Model: 74_45
    • Color: Multicolor