Best Electromagnetic Buzzer

RuiLing 5-Pack 12x9.5mm DC 3V Active Buzzer for Arduino Raspberry Pi,Magnetic Electronic Continous Long Beep Tone Alarm Sounder

  • Rated Voltage:3V.Operating Voltage:2.5-4V.Current: great than or equal to 25mA..
  • Application:Suitable for electronic toys, safety equipment, development boards,etc..
  • Made from high quality and durable PPO,lightweight and long service life..
  • Package included: 5pcs 3V Electromagnetic Active Buzzer..
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NOPWOK EMF Meter Rechargeable Electromagnetic Field Radiation Detector Handheld Digital LCD EMF Reader Temperature Measure, Tester for Home Inspections, Outdoor and Ghost Hunting

  • 【Accurate Measurement】The EMF meter detector has built-in electromagnetic radiation sensor, which can display the radiation value on a clear LCD digital display by controlling the microchip. Optional units mG/µT for testing magnetic field radiation, V/m for testing electric field..
  • 【Sound Light Alarm】When the electric field value exceeds 40V/m, and the magnetic field exceeds 0.4µT or 4mG, the LED screen turns red, the indicator light flashes, and the buzzer alarms. If you find it noisy, you can long press the "AVG/VPP" button to turn off the sound..
  • 【Widely Used】EMF meters can measure electromagnetic fields, identify equipment that generates high radiation, and enable you to make decisions about limiting exposure. Mainly testing magnetic and electric fields, such as testing TVs, computers, refrigerators, printers, microwave ovens, cell phone towers, low-frequency appliances, ghost hunting, etc..
  • 【Multiple Functions】Short press "AVG/VPP" to switch test average or peak readings, short press "℃/℉" button to switch temperature units °F and °C. Detector will automatically shu....
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EMF Meter Electromagnetic Radiation Detector, EMF Detector Ghost Meter, Rechargeable Digital EMF Tester for Home Inspections Office Outdoor Ghost Hunting

  • ...on: EMF meter can be used to test the radiation data of mobile phones, televisions, computers, induction cookers, microwave ovens and other household appliances, and can also be used for ghost hunting and other activities.
  • Precise Measurement: The EMF detector has built-in electromagnetic radiation detector, which can display the radiation value on a clear LCD digital display after being processed by a control microchip/ μ The optional unit of T is used to measure the magnetic field radiation, and the unit of volt/meter is used to measure the electric field, making the measurement more accurate.
  • Audible and Visual Alarm: when the test result of digital EMF tester reader exceeds 0.4μT 4mG or 40V/m, the indicator flashes, the screen turns red, and the buzzer alarms. Long press the middle button to turn on/off the audible alarm.
  • Multifunction: The ghost meter has the average value and peak value reading, data retention function, which can lock the data with a touch, automatically shut down, set the required safety value settings, including the opening or closing of the audible and visual alarm.
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Amavasion Glasses Lens Insert Compatible with Meta/Oculus Quest 2, Amavasion VR Glasses Customized Easy-to-Install Frame Plus Lens Combination SPH:-3.50(One Lens)

  • PRECISE MEASUREMENT: Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip. Testing magnetic field radiation with optional units mG/µT, the electric field with unit V/m. This emf meter can not test the RF value..
  • SOUND-LIGHT ALARM: When the testing result exceeds the value(0.4µT (4mG) or 40V/m), the screen will turn red and the indicator will be flashing, and the buzzer will alarm. If you’re testing some quiet areas, you can close the buzzer first, avoid disturbing the others..
  • MULTIFUNCTION: Testing average or peak value(Maximum) reading, and one key hold the data for a view. Large and back-light LCD is clear for viewing. Auto power off after 5 minutes without operation..
  • WIDELY APPLICATIONS: Mainly used for testing TV, computer, printer, microwave oven, refrigerator, cell towers, for low-frequency home appliances, and ghost hunting, etc..
  • CUSTOMER SERVICE: ERICKHILL strives to create professional and high-quality meter. We provide a 36-month after-sale service, lifetime technical support. If you have any questions, please feel free to contact us, our professional after-sales team will solve your problem in time..
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ERICKHILL EMF Meter, Rechargeable Digital Electromagnetic Field Radiation Detector Hand-held Digital LCD EMF Detector, Great Tester for Home EMF Inspections, Office, Outdoor and Ghost Hunting

  • PRECISE MEASUREMENT: Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip. Testing magnetic field radiation with optional units mG/µT, the electric field with unit V/m. This emf meter can not test the RF value..
  • SOUND-LIGHT ALARM: When the testing result exceeds the value(0.4µT (4mG) or 40V/m), the screen will turn red and the indicator will be flashing, and the buzzer will alarm. If you’re testing some quiet areas, you can close the buzzer first, avoid disturbing the others..
  • MULTIFUNCTION: Testing average or peak value(Maximum) reading, and one key hold the data for a view. Large and back-light LCD is clear for viewing. Auto power off after 5 minutes without operation..
  • WIDELY APPLICATIONS: Mainly used for testing TV, computer, printer, microwave oven, refrigerator, cell towers, for low-frequency home appliances, and ghost hunting, etc..
  • CUSTOMER SERVICE: ERICKHILL strives to create professional and high-quality meter. We provide a 36-month after-sale service, lifetime technical support. If you have any questions, please feel free to contact us, our professional after-sales team will solve your problem in time..
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AC Current Sensing Switch Flameproof Adjustable 0.2~30A IP30 Self-Powered Sensing Switch(Normally Closed)

  • Control of various automatic industrial control equipment, flash, buzzer, relay, single chip, or other power load equipment..
  • Using the electromagnetic mutual inductance principle of current, the advanced switch output detection, monitoring and protection alarm type products without power supply technology are adopted..
  • Widely used in substation, frequency control device, inverter device, electrolytic plating, electric locomotive, street lamp monitoring, coal mine and other need current monitoring automation industry..
  • Compared with traditional transformer and thermal protector, it has the advantages of high accuracy, stable performance and long service life..
  • The current-sensing switch is for safe, convenient monitoring or detecting the current of electric equipment. An ideal choice for automatic industrial control equipment and electric power monitoring..
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Hashy Giraffe Digital Wireless Body Height Meter Ultrasonic Height Measuring Instrument Stature Fast Meter For Kids Measuring Moving Height Ruler

  • Giraffe characters make children happy with their height. Easy measurement in 3 seconds without a tape measure!.
  • 【SAFETY】Our child's growth record ultrasound, which won't come back, makes it easy to measure at home without worrying about electromagnetic waves..
  • 【ONE TOUCH】Easy to measure at home from newborns to growing children.
  • 【TWO USES】Easily carry and capture a child's growth/ Used to measure the length of a furniture or to measure the size of a room when you move..
  • 【Detailed information】 W 50 x D 82 x H 229 mm ,175g / Measuring range: 40-200cm / Measurement error: ±0.8 Display mode: LCD / Function: buzzer prompt, one-button operation / ★Product of Korea China OEM.
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MALLORY SC628D TRANSDUCER, PIEZO, 1.9KHZ, 75DBA, 28VDC

  • Buzzer Sounder Electric-Composition -- Mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell..
  • Buzzer Alarm Buzzer-Multivibrator -- Multivibrator vibrates and outputs audio signal..
  • Alert Buzzer Sound-Impedance Matcher -- Impedance matcher drives piezoelectric buzzer sound..
  • Buzzer 12 volt-Sound Continuously -- Connected to rated power and the buzzer will sound continuously..
  • buzzer Active Piezo-Easy to Control -- Can be controlled conveniently..
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TekkPerry Game Answer Buzzer, Alarm Sound Play Button Box,Game Show Buzzers,Game Buzzer Button with Sound Light Party Contest Prop Toy,Trivia Quiz Got Talent Buzzer for Kids Adult Classroom

  • Game Buzzer Button with Sound Light: You can only simply press the red game buzzer to make it light up,the game answer buzzer will buzz loudly. The red color and "X" sign can attract attention and increase the fun of the game, easy to use..
  • Red Game Show Buzzers: 11*9.7*2.2cm/4.33*3.82*4.8inch(L*W*H) Color: Black + Red Light.ABS Shell material, built for durability, small system, easy to store, easy to operate.
  • Funny Toy Games for Kids AdultA great buzzer for your home quiz evenings, perfect classroom game accessory, family game night competitors rejoice. Great party contest prop toy for play competitive question and answer games, response buzzers let competitors easily buzz when they have an answer. Add game answer buzzers to any family board game for some extra fun.
  • Buzzer for Game Show:The answer buzzer is perfect for a funny prank, office desk gadget, home quiz evening, also can be party contest prop toy for kids adult, or for the classroom. Actively encourage contestant to join in the competition with this quiz game buzzer.
  • Not Include AA Batteries:Please note that our game buzzer is powered by 2 piece AA batteries(Not included in it).The game answer buzzer is compact size and lightweight, easy for carry.
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