Top Simple Frequency Counter

Halt! Dog Repellent 1.5 oz

  • Dog barking deterrent devices is more effective and human dogs can hear a wider frequency range from 15hz to 120khz this bark control device emits ultrasonic sound at 25khz which is above the hearing range of humans but will easily grab dogs attention and make them feel uncomfortable press the button to stop your dogs bad behaviors like barking digging fighting and more help them understand that their bad behaviors will cause an uncomfortable experience.
  • 3 different frequency wave to avoid dogs getting used to simple frequency this ultrasonic dog bark deterrent can emit ultrasonic sounds with 3 different sound waves stable frequency undulating frequency and irregular frequency sound waves you can choose the different waves to void dogs getting used to simple frequency and it can make it reduce the training effect on the simple waves for a long time.
  • Recharge dog barking control device with low power light Indicator this sonic bark deterrent usb rechargeable 300mah battery full charge in 1 to 2 hours for about 12 days of regular use saves you the endless hassle and invest in batteries when low power push the function button the indicator will be red.
  • Convenient outdoor use of 16.5 feet controls range with dog barking deterrent devices just fits nicely in....
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Display Digital Signal Frequency Counter PLJ 6LED H LED Signal Generator Cymometer Tester Frequency Measurement Modules Adjustable Module 0.1~1000MHz(Backlight Font red)

  • Test Accuracy: The frequency meter is designed with dual intermediate frequencies. The intermediate frequency value and the addition and subtraction mode can be preset separately without affecting each other, which can achieve high stability and high resolution. The tester has good sensitivity, better than 60mVPP.
  • Excellent Performance: The frequency reference uses a temperature compensated voltage controlled crystal oscillator. The display driver adopts LED display special chip, the digital tube has high brightness and less external interference.
  • Small and Convenient: This module is compact and exquisite in design, can be put into a pocket, does not occupy extra space, is convenient to carry, and has reliable performance, good visual effects, and low cost.
  • Convenient to Operate: The circuit of the frequency meter is simple, the design structure is reasonable, and the unique two key control method and precise time algorithm are used to make the operation simple and fast.
  • Multi Function: The circuit is simple, the structure is reasonable, double button control, and the operation is simple. Each setting is automatically saved, and the power is on.
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Rigol DM3058E Benchtop Multimeters - Type: Digital, Style: Bench

  • Unique SiFi II (Signal Fidelity II) technology: generate the arbitrary waveforms point by point.
  • jitter of all the output waveforms (including Sine, Pulse, etc.) as low as 200 ps.
  • 8 Mpts memory depth (optional) per channel for arbitrary waveforms.
  • Optional dual-channel with the same performance, equivalent to two independent signal sources.
  • Built-in high-order harmonic generator (at most 8-order harmonics).
  • Built-in 7 digits/s, 240 MHz bandwidth full featured frequency counter.
  • Up to 160 built-in arbitrary waveforms, covering the common signals in engineering application, medical electronics, auto electronics, math processing, and other various fields.
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DORHEA 3 Set Electronic Flashing Lights Soldering Practice Board LED NE555 CD4017 IC LED Electronic Lights Kits Red Blue Dual-Color DIY Kit Strobe Electronic Suit Flashing Lights Components DIY

  • The circuit working voltage: DC9-12V. The product does not include battery. It is simple to make, has obvious effect and is interesting. The circuit can be used for electronic toys, art lighting, LED billboards ,ect..
  • This suite adopts simulation light circuit made with NE555 and CD4017, the blue LED and red LED flashed alternately according to the pulse. The multivibrator composed of NE555 will have a certain frequency of oscillation signal send to CD4017 decimal counter/pulse distributor, in order to count..
  • This is a very interesting circuit for simulating the visual effects of warning lights, blue and red lights flash alternately according to the pulse respectively. This kit is simple to assemble, suitable for electronics enthusiasts and students to practice. Design optimized for training, it adopts 1.6mm electric board and nice layout of the components..
  • Specially designed for the training, cost-effective, red diodes and blue diodes can be opened with wire connections to expand the lamp distance, the original board number and model on the circuit board, the right seat can be installed..
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PM-120W Digital VHF UHF 125-525Mhz Power SWR Meter and Frequency Counter - HF RF Meter HAM Two-Way Radio SO239 Connector

  • ✔️ VSWR with SO239 connector. Forward and reflected power direct digital readout, without any calibration. NOTE: NOT compatible with Digital Radio.
  • ✔️ Maximum measurable power range up to 120W.
  • ✔️ Low insertion loss (0.3 decibels or less) structure allows it to be permanently connected.
  • ✔️ Build in Frequency counter . Interface (in and out ): SO239.
  • ✔️ Frequency range: 125 - 525MHz. Version: 2.7.
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UNI-T Clamp Meter + Oscilloscope Kit, UT210E Pro Digital Multi Tester, UTD2152CEX Digital Storage Oscilloscope

  • Product 1: Upgraded UNI-T UT210E Pro with larger range, faster reading, and new features. Versatile for diagnose automotive, repair, troubleshoots, industrial and household electrical issues. All in one..
  • Product 1: Ultra safe and built to last. Safety rated CAT II 600V, CAT III 300V. Built in smart chip for overload protection. Pocket sized, nonslip rubber grip and easy to carry..
  • Product 2: UNI-T Arbitrary Waveform Generator UTG962. Dual channels. Ch1 - Ch2 combining. Output waveforms: Sine, square, pulse, ramp, noise, DC, arbitrary. Modulation types: AM, FM, PM, FSK, Line, Log. 24 groups non-volatile arbitrary waveform storage..
  • Product 2: Sampling rate of 200MSa/S. TTL level signal compatible 6 digits high accuracy built-in frequency counter. Output frequency range: 1μHz-60MHz. Full-band resolution of 1μHz. DDS (direct digital synthesis) method applied. 14 bits vertical resolution. Support frequency scanning and output..
  • 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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UNI-T UT210E Pro + UTG962, Digital Clamp Meter, Function Generator Arbitrary Waveform 60MHz 200MSa/s

  • Product 1: Upgraded UNI-T UT210E Pro with larger range, faster reading, and new features. Versatile for diagnose automotive, repair, troubleshoots, industrial and household electrical issues. All in one..
  • Product 1: Ultra safe and built to last. Safety rated CAT II 600V, CAT III 300V. Built in smart chip for overload protection. Pocket sized, nonslip rubber grip and easy to carry..
  • Product 2: UNI-T Arbitrary Waveform Generator UTG932. Dual channels. Ch1 - Ch2 combining. Output waveforms: Sine, square, pulse, ramp, noise, DC, arbitrary. Modulation types: AM, FM, PM, FSK, Line, Log. 24 groups non-volatile arbitrary waveform storage..
  • Product 2: Sampling rate of 200MSa/S. TTL level signal compatible 6 digits high accuracy built-in frequency counter. Output frequency range: 1μHz-30MHz. Full-band resolution of 1μHz. DDS (direct digital synthesis) method applied. 14 bits vertical resolution. Support frequency scanning and output..
  • 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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UNI-T MSO3000E Series Digital Oscilloscopes 150MHZ 2CH, 50MHz Built-in Waveform Generator

  • Product 1: UNI-T Arbitrary Waveform Generator UTG932. Dual channels. Ch1 - Ch2 combining. Output waveforms: Sine, square, pulse, ramp, noise, DC, arbitrary. Modulation types: AM, FM, PM, FSK, Line, Log. 24 groups non-volatile arbitrary waveform storage..
  • Product 1: Sampling rate of 200MSa/S. TTL level signal compatible 6 digits high accuracy built-in frequency counter. Output frequency range: 1μHz-30MHz. Full-band resolution of 1μHz. DDS (direct digital synthesis) method applied. 14 bits vertical resolution. Support frequency scanning and output..
  • Product 2: Quiet & Easy to use. Single output. 4 digits EBTN LCD display. 3 groups of one-key recall of stored data. Independent output switch. A low-noise power supply that is easily viewable from any angle..
  • Product 2: Accurate. Output regulate resolution: 10mV (constant voltage) / 1mA (constant current). Adjustable voltage (0-32V). Output current 0-6.0A. Input voltage: 110V AC/220V AC, 50Hz~60Hz..
  • 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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Bug Detector, hidden camera detectors ,Anti spy Detector ,RF Detector, GPS Detector Anti Tracking Strong Magnetic Detector for GPS Tracker Hidden Camera Finder Listening Device in office, car, meeting

  • ... or frequent battery charging. Comes with good step by step directions enable you get a quick start..
  • Advanced & More Intelligent:New advanced high-speed microprocessor embedded enables M8000 more powerful and intelligent in bug sweeping. High sensitivity, ultra high anti interference, farther detecting range, wider frequency range to detect covering a full range of spy bugging devices..
  • Security Expert:Ideal counter surveillance device helps you feel safer when you are concerned about your privacy in public bathrooms, hotels, vacation rentals, AirBnBs,changing rooms,entertainment rooms, locker rooms,business meetings, school examinations. It is a must have when you stay out. A perfect security gift for the one you really care about..
  • Continued Guaranteed free Customer Support:Lifetime warranty. JMDHKK customer support team will provide lifetime professional support.Please contact us if you have any question or concern on our detector. We reply each message with quick assistance and support in less than 4-12 hours..
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Fancasee (2 Pack) BNC Radio Antenna with BNC Male Plug Jack Connector Adapter Telescopic Stainless Steel HF VHF UHF BNC Antenna for Portable Mobile Handheld Radio Scanner Police Scanner Receiver

  • Excellent 2-pack replacement BNC radio antenna, telescopic BNC antenna, HF VHF UHF bnc antenna..
  • This BNC connector antenna compatible with portable mobile handheld digital desktop radio scanner, radio media system, communication receiver, police radio scanner, CB radio, sound voice machines, PA system, VHF UHF wireless system, remote receiver, radio controlled receivers, frequency counter etc. which use a BNC male connector antenna..
  • Minimum shortened length 6.7 inch. 7-sections telescopic stainless steel bnc radio antenna. This bnc radio antenna can freely rotate to adjust the best signal receiving position..
  • Easy Installation, Plug-n-Play, bnc male plug connector radio antenna, very easy to install and use..
  • More simple and effective, this bnc radio antenna provide a better radio solution..
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Living247 FitStep 3D Pedometer for Seniors, Easy to Use One Button Step Counter Step Tracker

  • SIMPLE & EASY TO USE – The Living247 FitStep 3D Pedometer step counter with the Accelerometer Motion Sensor offers a simple, easy to use big display making it easy for senior steppers who want to track steps while achieving their fitness goals. No phone needed, this is a simple pedometer, not a complicated smart watch or other complex fitness tracker..
  • TRACK YOUR DAILY STEPS – Senior health stepper, men’s health stepper, step tracker for elderly. Effectively counts steps so you can view your progress while on the move, motivating you to achieve your fitness goals..
  • ACCURATE READINGS – The 3D Accelerometer motion sensor ensures the Living 247 step counter provides superior accuracy in recording steps and only counts steps, not other movements like sitting down or running over speed bumps while driving..
  • EXTRA LARGE DIGITAL DISPLAY – A large screen display makes it easy to clearly and easily read the number of steps taken at a glance..
  • MULTIPLE WEARING OPTIONS – The step counter can go in your pocket, clip on your hip or shoelaces, placed in your pocket, bag or backpack..
  • SIMPLE ONE BUTTON OPERATION – The Living247 FitStep 3D step counter automatically resets the count with a single button..
  • NO SETUP REQUIRED – The Living247 FitStep 3D fitnes....
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Esosy Anti Barking Device, Ultrasonic Bark Deterrents, Waterproof Bark Control Device for Outdoor,Dog Training Tools, Outdoor Waterproof Bark 50 Ft Range, Dog Barking Deterrent Safe for Human & Dogs

  • Dog barking deterrent devices is more effective and human dogs can hear a wider frequency range from 15hz to 120khz this bark control device emits ultrasonic sound at 25khz which is above the hearing range of humans but will easily grab dogs attention and make them feel uncomfortable press the button to stop your dogs bad behaviors like barking digging fighting and more help them understand that their bad behaviors will cause an uncomfortable experience.
  • 3 different frequency wave to avoid dogs getting used to simple frequency this ultrasonic dog bark deterrent can emit ultrasonic sounds with 3 different sound waves stable frequency undulating frequency and irregular frequency sound waves you can choose the different waves to void dogs getting used to simple frequency and it can make it reduce the training effect on the simple waves for a long time.
  • Recharge dog barking control device with low power light Indicator this sonic bark deterrent usb rechargeable 300mah battery full charge in 1 to 2 hours for about 12 days of regular use saves you the endless hassle and invest in batteries when low power push the function button the indicator will be red.
  • Convenient outdoor use of 16.5 feet controls range with dog barking deterrent devices just fits nicely in....
Check Stock