Best Frequency Tester

New Upgraded Network Cable Tester with Optical Power Meter VFL, RJ45 Wire Cable Tracer for Telephone, Ethernet, Video, Tone Generator,CAT5 CAT6 Cable Toner Ethernet Cable Tester PoE

  • ...o accurately locate the target cable, widely used in engineering wiring, network and equipment maintenance.
  • Optical power Meter Test & Port Flashing: Connect the network cable to be tested to the transmitter, the wire tracker will automatically detect the optical fiber frequency and the port indicator will flash on the same screen, which can display the working speed of the port, which is convenient for accurately locating the line and port..
  • Multifunctional Network Cable Tester: There are nine features to meet your needs. Continuity testing, cable scan, port flash, length measurement, POE Power Supply Test, QC testing, optical power meter, VFL function, and NVC function..
  • PoE Testing: PoE testing can check cable mapping polarity and voltage of PoE network switches, withstand 60VDC. Automatically detects and switches between 10M/100M/1000M modes. Includes cable tracking, short circuit test, interruption of circuit test and etc.
  • Cable Length Test: The RJ45 cable tester can quickly measure the length of the cable with a range of 200m. Not only network cables, but also phone lines....
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WOYO Remote Control Tester Tools Car IR Infrared (Frequency Range 10-1000MHZ) Auto Key Frequency Tester Car Key Frequency Tester

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ANCEL BST200 12V Car Battery Load Tester with ANCEL PB100 Automotive 12/24V Circuit Tester Probe

  • Includes: 1 x BST200 Battery Tester, 1x PB100 Circuit Tester.
  • Works on automotive 12V 100 - 1100 CCA lead-acid batteries, including regular flooded, AGM flat plate, AGM spiral, and GEL batteries for cars, SUV, motorcycle, light truck, and more..
  • Gives you an accurate result in only 3 seconds, such as CCA value, CCA rating, voltage, internal resistance, state of health, and state of charge, based on the rating standard of CCA, CA, MCA, JIS, DIN, IEC, EN and SAE..
  • A MUST-HAVE TOOL - Designed for voltage & polarity testing, continuity testing, signal circuit testing, supply power/activating components, trailer lights & connections testing. It features red/green polarity indicators, follows & locates short circuits, and checks bad Ground contacts..
  • 4 WORKING MODES - DC Voltage mode for reading the DC voltage with a resolution of 0.1 volts.
  • AC Voltage mode for reading the Max. voltage, the Min. voltage, and frequency.
  • Resistance mode for reading the resistance between the tip and auxiliary ground lead.
  • Diode mode for checking forward bias or reverse bias..
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Non Contact Voltage Tester Pen, Electrical Tools Electrical Tester AC 12-1000V/48V-1000V, LED Flashlight, Buzzer Alarm for Live/Null Wire Tester Judgment, Wire Breakpoint Finder

  • 【SAFETY FIRST】 : It will send out multiple alarms through sound and light. When the voltage is detected, the tip will send out red light and beep. When the higher the sensed voltage is, or the closer it is to the voltage source, it beeps at a higher frequency. At the same time, the light will be red or yellow, red means high voltage and live wire are detected, yellow means low voltage and null wire are detected..
  • 【Accurately Multi-ranging Measurement】The electrical tester accurately detects AC Voltage ranging from 12V to 1000V, and distinguish them into 2 Voltage levels (low, high). NCV sensitivity automatically adjusts from low and high while indicating Voltage level with audible beep..
  • 【High Efficiency】 Press and hold the switch for two seconds to start the machine, As Long As Voltage is Detected, the Led in the Tester Pen will Shine.
  • 【COMPACT DESIGN】 Bright LED flashlight for work in dim ares.
  • Low-Power-Indicator when battery voltage is below 2.5V.
  • Automatic Power Off after 3 minutes without operation or signal detection.
  • Pocket-sized, pen hook allows you to carry it in your shirt pocket..
  • 【SECURITY LEVEL】 IEC rated CAT III 1000V CAT IV 600V, Meets CE requirements.
  • The electrical tester is safely double insulated. High Voltage Aler....
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Non-Contact Voltage Tester/ Voltage Tester with Dual Range AC 12V-1000V/48V-1000V, Live/Null Wire Tester, ENGiNDOT Electrical Tester with LCD Display & Buzzer Alarm, Wire Breakpoint Finder-VT02(Black)

  • 【DUAL RANGE】The circuit tester accurately detects standard and low voltage (12-1000V AC / 48-1000V AC), which is more sensitive and flexible. Low sensitivity can probe power supply lines such as power boards, desk lamps, computers, etc., and high sensitivity can detect buried walls and other internal wiring detection (depth≤1.18 inches). The electronic pen can beep from low, medium, and high frequency to indicate voltage..
  • 【SAFETY FIRST】The live wire detector detects voltage in a non-contact way, and insulation operation can ensure the safety of testers. Safety Compliance: CAT.III 1000V CAT.IV 600V.
  • 【MULTIFUNCTION, EASY TO USE】The LED flashlight with high brightness can illuminate your workspace in the dark. In addition, the sound, light, and screen display triple alarms, and the voltmeter buzzer alarms loudly, allowing you to feel the voltage visually and audibly..
  • 【High Efficiency】As long as voltage is detected, the Led in the tester pen will shine..
  • 【COMPACT DESIGN】 The electrical tester uses 2 * 1.5 V AAA batteries (included), which will automatically Power Off in 3 minutes without operation to save energy. What's more, the small-sized body and portable pencil pen hook allow you to carry the item in your pocket..
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Autel PS100 Power Circuit Probe Kit, 12V 24V Automotive Circuit Tester Electrical System Tool, AC DC Diode Resistance Checker Digital Voltage Tester, Multimeter, Short Finder

  • ...ents activate, check bad ground contact, locate short circuits etc. This is a wonderful Christmas present for man/dad..
  • 【FOUR MODES】The circuit probe kit’s 4 modes : DC voltage: read the DC voltage with a resolution of 0.1 volts. AC voltage: read the Max/Min voltage, frequency, and duty cycle. Resistance: read the resistance between the tip and auxiliary ground lead. Tone On/Off: technicians use the tone in a dark environment to distinguish the test results..
  • 【QUICK SELF-TEST】With the power circuit probe tester connected, perform a quick self-test.The power switch is a momentary rocker switch located on the tool's body. Flanking the switch are positive and negative markings..
  • 【CIRCUIT BREAKER】Autel PS100 electrical tester is short-circuit protected. Its internal circuit breaker will trip if it becomes overloaded. The circuit breaker is a valuable test tool as well as a safety measure to protect the tool from overload..
  • 【QUICKLY IDENTIFY POLARITY】Autel PS100 instantly checks component continuity and identifies positive, negative and open circuits. When the pos....
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UNI-T Digital Multimeter Tester UT139C, Voltage Meter Tester Capacitance Meter Frequency TRMS 6000 Counts Auto/Manual Ranging

  • True RMS Multimeter Kit UT139C. 6,000 counts. Measures AC DC voltage (600V max), AC DC current (10A max), resistance, capacitor tester, frequency, temperature, diode test, bandwidth, etc. Ideal for electricians. Diagnose automotive, industrial and household electrical issue in a breeze..
  • Auto/manual ranges switchable multi meter digital. Relative mode. MAX/MIN. Data hold. LCD backlight. Auto power off. Troubleshoot home appliances, light fixtures, sockets and electrical panels. Besides, great volt meter and multimeter for checking automotive battery voltage, alternator output, etc..
  • Safe & Durable ohm meter multimeter. Safety rating: CAT III 600V. NCV detection feature effectively checks electrical status through measuring EM field intensity. Full range protection (600V). Thick rubberized cover and quality built-to-last electrical kit..
  • Easy to use electrical tester kit. Value pack includes: UT139C voltmeter digital, test leads (pair), temperature probe, paper manual, eManual (free download), gift box, and easy access to UNI-T 7/24 User Support (by email)..
  • UNI-T WARRANTY – A trouble-free experience with 100% 18-MONTH WARRANTY and 100% MONEY BACK GUARANTEE by UNI-T Direct!.
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KZYEE KM50 Power Circuit Probe Kit Fuel Injector Tester with WH7 5M Wireless Endoscope 1080P HD Zoom 2200mAh WiFi Borescope

  • 【Replaceable Test Light Bulb & Multiple functions】12V test light has a 5W replaceable test light bulb on the top for high visibility and long life. Bulb can quickly detect the shorts/breaks of the electrical circuit. This Bulb are universal with the car's bulb, so it can be replaced directly. Meanwhile, frequency range can be predicted when led light tester is connected to an AC signal (5~30V), it's used for fuel injector signals, spark plugs, crankshaft sensor signals, etc..
  • 【Bidirectional Voltage Test & LED Digital Display】The light tester comes with bright LED digital voltage display and can read out Volt accurately and quickly, can be clearly seen during the day and night. Connecting a large alligator clip or a second probe to either negative or positive ground, red light indicates positive polarity and green light indicates negative polarity..
  • 【Lightweight & Portable Fan】 Compact size can be easily put into a backpack, easy to carry. When the device is dead, it can be charged by a computer, power bank, car power supply, etc. Its your ideal partner for camping, fishing, outdoor activities in summer or any emergency..
  • 【Wide Testing Range】Professional automotive circuit tester/circuit test light with 5-30V DC voltage testing ra....
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GemOro Testerossa Talking Diamond Moissanite & White Sapphire Tester Silver

  • Size of Diamond Tester Pen: The gemstone tester pen dimensions are 6.6 Inches long, 1.6 Inches wide, and 0.8 Inches thick. The portable diamond tester....
  • Detection Way: The tester indicates genuine diamond or fake, the jewelry tester meter is designed and manufactured according to the thermal....
  • Result Indicator of Diamond Reader: With diamond gem tester you will be able to know in a few seconds whether an item is fake or not, there are the....
  • Easy to Operate Jade Jewelry Tester: Simple calibration for stones of various sizes the jewelry tester silver and diamond tester are easy to use even....
  • Wide Uses of Electronic Diamond Tester: The diamond tester professional tester is mainly used for industrial purposes, circuit boards, and printing,....
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Autel PowerScan PS100 Power Circuit Probe Kit with 40ft Cable, 12V 24V Automotive Circuit Tester, Car Electrical Diagnostic Tool, AC DC Resistance Voltage, Short Finder, Continuity/Probe/Signal Test

  • 【FOUR WORKING MODE---INTUITIVE&EASY】Four working modes make circuit detection more simple:DC Voltage, AC Voltage, Resistance, Tone On/ Off. DC Voltage mode can read DC voltage with 0.1V resolution.
  • AC Voltage can read Max & Min voltage, frequency and duty cycle quickly.
  • Resistance mode can read resistance between tip and auxiliary ground wire. Unique Tone On/Off Design is really useful when working in bright areas, it can judge the circuit voltage according to the volume of the sound..
  • 【COMPONENT ACTIVATION】The component activation feature is specially designed to troubleshoot on/ off-board electrical equipment. By activating the signal generated by the component, you can accurately judged whether the component is intact, such as blower motor, power window motor, windshield wiper, rear window defroster, lights, radiator fans, fuel injectors, etc. Autel PS100 circuit tester automotive tool can activate component in your hand/ in the vehicle/ with ground etc..
  • 【INSTANT IDENTIFY POLARITY】Autel PS100 instantly checks component continuity and quick identifies positive, negative and op....
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