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Best Electromagnetic Buzzer

KII EMF Meter Deluxe Black - Paranormal Research Meter

  • 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 of the EMF detector exceeds the value(0.4µT (4mG) or 40V/m), the indicator will be flashing and the screen will turn red , and the buzzer will alarm. If you’re testing some quiet areas, you can close the buzzer first, avoid disturbing the others..
  • Multifunction of Radiation Detector: Testing average or peak value(Maximum) reading, and one key hold the data for a view. Auto power off after 5 minutes without operation. Measuring the temperature in the air with unit ℃/℉.Large and back-light LCD is clear for viewing. ghost detector.
  • Electromagnetic Radiation Test: ghost detector, mobile phone, computer, TV set, refrigerator and high voltage cable radiation test.Radiation protection product test: test effects of radiation-proof clothes, radiation-proof film and other prevention articles..
  • Easy to Carry- Small pocket size and light weight design makes it more popular with users.
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HWMATE Access Control System Kit with 600lbs Holding Force Magnetic Lock Exit Button WiFi Remote & Buzzer Controlled by Smartphone

  • This kit is a one door 600lbs Magnetic lock kit for doors that open out. ​This is for indoor applications. It is mainly used for customers that do not want to physically get up and open the door. With this system, you will be able to let people in by clicking on the RF remote. The remote communicates with the receiver, which can program up to 50 remotes, and it has a range of 300 feet (open space).
  • When the power is on, the magnetic lock will lock the door with 600lb holding force.
  • when you press the remote transmitter button, the magnetic lock will unlock to open the door and let people in.
  • External Buzzer: Mini External Buzzer for access control Lock systems. Buzzer sounds informing you your magnetic lock is unlocked.
  • This magnetic lock system also brings an exit button that will allow you to exit from the inside of the door. ▶▶ Keep in mind that this exit button does not bring a delay meaning that you would have to press the exit button at the same time that you open the door..
  • Electromagnetic door lock systems are commonly used in convenience stores, pawn shops, gas stations, office buildings and other small businesses.
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Magnetic Lock Holding Force Indoor Access System 300, 600 & 1200LBS Electromagnetic Lock 12/24VDC Includes L&Z Bracket Heavy Duty Professional UL Listed (Electromagnetic Lock 300LBS + L&Z Bracket)

  • This kit is a one door 1200lbs UL Listed Magnetic lock kit for doors that open out. ​This is for indoor applications. It is mainly used for customers that do not want to physically get up and open the door. With this system, you will be able to let people in by clicking on the RF remote. The remote communicates with the receiver, which can program up to 50 remotes, and it has a range of 300 feet (open space).
  • When the power is on, the magnetic lock will lock the door with 1200lb holding force.
  • when you press the remote transmitter button, the magnetic lock will unlock to open the door and let people in.
  • External Buzzer: Mini External Buzzer for access control Lock systems. Buzzer sounds informing you your magnetic lock is unlocked.
  • This magnetic lock system also brings an exit button that will allow you to exit from the inside of the door. ▶▶ Keep in mind that this exit button does not bring a delay meaning that you would have to press the exit button at the same time that you open the door..
  • Electromagnetic door lock systems are commonly used in convenience stores, pawn shops, gas stations, office buildings and other small businesses.
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WiFi Access Control 400lb Holding Force Electic Magnetic Door Lock System Kit with Remote and Smartphone app Control, paired with Wireless and Touchless Sensor Switch (Electric Magnetic Lock kit)

  • This kit is a one door 600lbs Magnetic lock kit for doors that open out. ​This is for indoor applications. It is mainly used for customers that do not want to physically get up and open the door. With this system, you will be able to let people in by clicking on the RF remote. The remote communicates with the receiver, which can program up to 50 remotes, and it has a range of 300 feet (open space).
  • When the power is on, the magnetic lock will lock the door with 600lb holding force.
  • when you press the remote transmitter button, the magnetic lock will unlock to open the door and let people in.
  • External Buzzer: Mini External Buzzer for access control Lock systems. Buzzer sounds informing you your magnetic lock is unlocked.
  • This magnetic lock system also brings an exit button that will allow you to exit from the inside of the door. ▶▶ Keep in mind that this exit button does not bring a delay meaning that you would have to press the exit button at the same time that you open the door..
  • Electromagnetic door lock systems are commonly used in convenience stores, pawn shops, gas stations, office buildings and other small businesses.
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Tropic Reptile Zoo Keeper Gift Idea Iguana T-Shirt

  • 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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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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