Top Automatic Doors Voltage Control

1-600MHz RF Signal Power Meter Logarithmic Detector -74dBm to 18dBm Radio Frequency Detection

  • The detector is is used for RF signal power detection of frequency range between 1MHZ and 600MHZ.
  • It can detect a rf signal of power from -74dBm to 18dBm, and convert the RF signal into a DC voltage output.
  • The higher radio frequency signal range or power is, the higher output voltage will be.
  • output voltage is proportional to logarithm of input signal range.
  • Widely used for RF signal detection, signal power measurement, environment field strength detection, can also be used as a part of automatic gain control and automatic level control.
  • It can be made into 1mw ~ 1kw RF power meter after appropriate transformation.
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Door Closer Automatic Adjustable Closers Spring Hydraulic Auto Door-Closer with Easy Installation Life Size Fitting Template & Instructions (Black)

  • 【NO SLAMMING ANYMORE】: Still bothered by constant door slamming when someone leaves? Come to us and get the best automatic door closer you can find online to solve this issue! With our door closers residential, you can enjoy automatic door closing and latching while maintaining quiet and secure moments every day..
  • 【EXQUISITE QUALITY】: Our automatic door closer is made of quality aluminum alloy, which makes it stable and durable. This storm door closer is easy to install, silent and smooth, totally automatic and speed adjustable. Easy and simple fitting helps to save your time and shows a better performance. The lever of the door closer rotates flexibly as well..
  • 【WIDE APPLICATION】 - Our door closers commercial are commonly designed for heavy doors weighing between 40-65kg (88lb-143lb). Door width 60-90cm (23.62" -35.43"). Door opening range: maximum 150º. The door slam stopper can work with different types of medium doors whether wood or steel, residential or commercial. You need a door closer that can suit the dimensions of your door..
  • 【FLEXIBLE ADJUSTMENT】 - 2 independent adjustment control valves of our automatic door closer to suit your needs.. With them at your fingertip, you can control both door latching speed and the closing spe....
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TEHAUX 3pcs Punch-Free Door Closer Multifunction Residential Sliding Screen Door Closer

  • SLIDING SCREEN DOOR CLOSER AUTOMATIC--Suitable for screen doors, sliding doors, invisible doors, glass doors, office doors, etc..
  • DOOR CLOSER FOR HOME--- [Wide Application] The multifunctional automatic door closer is suitable for doors or doors with stronger closing. For example: screen doors, sliding double doors, security doors, aluminum alloy glass doors, iron doors, office doors, interior doors..
  • SELF CLOSING DOOR--The installation method is simple and easy to operate, punch-free adhesive installation..
  • AUTOMATIC DOOR CLOSERS--- [Punch- Free Easy to Install] The automatic door closer is punch- free and adopt adhesive installation, good firmness, does not damage the wall, easy installation an high- temperature resistance..
  • WIRE ROPE DOOR CLOSSER-- Anti- oxidation,, stable, wear- resistant, small size and space- saving, and safe..
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HITBOX MIG Welder 200Amp – 110V 2 in 1 Gasless Flux Core Welder ARC/MMA Welding Machine with IGBT Inverter, Portable Automatic Wire Feed Welders No Gas-HBM200

  • Powerful machine :Up to 200Amp output allows you to weld mild steel up to 5/32” in the plate. Suitable for 0.30” & .035” flux core wire. Automatic change of the voltage & wire feeding speed by adjusting the amperage.
  • Multi-Process：Gasless MIG/Stick 2 -in-1 Welder.ARC mode fits rods: E7018, E6013, E6011.
  • Advanced IGBT&Inverter & 60% High duty cycle ensures long time operation.Closed loop feedback control, constant voltage output, workable under mains voltage fluctuation within ±10%.
  • Adjustable welding voltage and current, excellent welding performance. Adopting unique welding dynamic characteristic control circuit in Gasless, stable arc, little spatter, beautiful weld bead, high efficiency.
  • Automatic compensation for voltage fluctuation, over current protection, over load protection.Perfect for Home DIY and Repair, Maintenance, Metal Fabrication, farm & road equipment.
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Door Access Control System Stainless Electric Steel Door Exit Button Door Push Release Button Push Button Switch With Indicator Light

  • ... install and operate, economical and practical. With the excellent design, Easy and quick installation..
  • Application: The door access control system switch suitable for being installed on hollow door frame and embedded electrical box. Widely used in doors, exits, gates and automatic control. Widely used in door entry access control system, such as offices, banks, gas stations, department stores and many more..
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HayWHNKN 28inch Countertop Display Refrigerators Cake Showcase Bakery Display Cooler Cabinet Automatic Defrost White LED light 110V

  • 【Automatic Defogging Function】The food in the cabinet can be fully displayed, clearly visible. The air duct design on the outside of the glass can effectively remove the condensed water on the surface. The defogging interval is 4-6 hours. There is no auxiliary heater and it is more energy-efficient to use..
  • 【Double-layered Glass】The display cabinet uses double-layer hollow heat-insulating glass doors to effectively block the strong light and heat from the outside. The air-cooled technology locks the freshness more evenly and effectively locks the internal air-conditioning..
  • 【Digital Temperature Control】Electronic temperature control is accurate, and the adjustment range is 32-53.6°F (0-12°C), which meets the temperature requirements of different foods..
  • 【Long Service Life】Equipped with high temperature protection device to prevent machine failure caused by high ambient temperature. New type compressor with more stable performance..
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165Amps Mig Welder, Dual Voltage Mig Welding Machine, Mig/Stick/MMA/Lift TIG Welder Machine, Gas Gasless Flux Wire Core Welder (MTS-165D)

  • [Multiple welding mode]: MTS165D adopts dual-voltage(110/220V) design, which can automatically read and indicate after power-on. Using IGBT inverter technology, it has high output efficiency, good dynamic performance and good load adaptability. The welding machine is an integrated design welding machine for Stick/MMA/ARC Welding/Lift TIG/2T/4T..
  • [Synergic Function]: One intelligence control system automatic compensate and adjust current/voltage.10 levels precise adjustment from -5V to +5V, Coordinate control mig wire feeder’s speed and current, which makes the machine easy to heat arc and instantaneous Increase the current convenient for striking the arc..
  • [Smooth Arc]: This MIG welding machine can work in conjunction with hot arc and arc forces and achieve smooth arc. Internal pre - set splash less and anti - adhesion, makeing a better arc starting effect. Very friendly for green hand and DIY users..
  • [Automatic Protection Function]: Automatic voltage and current control, built-in energy-saving fan automatically regulates the temperature and prevents overheating and dust enter.VRD against electric shock design makes welding workers safer..
  • [Easy to Use]：Friendly operation interface, front panel detailed identification with precise digital display. Fr....
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Bindpo RF Logarithmic Detector, 1M-10000MHz AD8317 Radio Frequency Logarithmic Detector Power Meter, for RF Signal Power Detection/Radio Frequency Signal Detection

  • The product is designed by using AD8317 chip, and is used for RF signal power detection..
  • Can detect power in -55dBm to -0dBm of an RF signal, so that the RF signal is converted to DC voltage output..
  • The greater the amplitude or power of the RF signal, the higher the output voltage, and the output voltage is directly proportional to the logarithm of the input signal amplitude, thus expanding the dynamic range of the detected signal, which ranges reach 55dB..
  • It can be widely used in radio frequency signal detection, signal power measurement, environmental field strength detection..
  • It can also be used as part of automatic gain control and automatic level control..
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YWBL-WH Logarithmic Power Detector Meter AD8317 1M-10GHz 60dB RF Power Meter Logarithmic Detector Controller for Amplifier 50 Ohms

  • AD8317 CHIP---The logarithmic power detector is designed by using AD8317 chip, and is used for RF signal power detection.
  • -55dBm to 0dBm---The logarithmic power detector can detect power in -55dBm to 0dBm of an RF signal, so that the RF signal is converted to DC voltage output.
  • APPLICATION AREAS---The logarithmic power detector could be used for RF transmitter PA set point control and level monitoring.
  • Power monitoring in a radio line transmitter.
  • RSSI measurements in base stations, WLAN, WiMAX, and radar.
  • 55dB---The greater the amplitude or power of the RF signal, the higher the output voltage, and the output voltage is directly proportional to the logarithm of the input signal amplitude, thus expanding the dynamic range of the detected signal, which ranges reach 55dB.
  • WIDE APPLICATION---The logarithmic power detector could be widely used radio frequency signal detection, signal power measurement, environmental field strength detection, or as a part of automatic gain control and automatic level control.
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Screen Door Closer, TTZEZE Heavy Duty Automatic Door Closer, Safety Spring Door Closer for Storm Door, Steel Door Closer with Adjustable Closing Speed, Smooth and Quiet Door Closer for Hinge Door

  • Hight Quality Material - Light door closer is made of commercial grade stainless steel, spring operation, totally automatic closing, gives you a easy and safe life, protects your door and lock..
  • Wide Applications - Fire doors adjustable works with all types of medium doors, right and left opened doors, wood and metal doors, residential and commercial doors, exterior/interior door closer, fire doors..
  • Automatic Adjustable Closing Speed - Easily adjust the tension on this safety spring door closer. Use these door closers to convert hinged doors to self-closing ones to help you control the speed of closing door and protect your door lock.Gives you a easy and safe life..
  • Easy to Install - Six different colors to suit your choice. With a closer and stainless steel holder being surface mounted, including installing hardware, installation is simple and you can do it quickly..
  • Perfect Service - If you do not satisfy with our item or if you have any questions, please contact us. We would work out satisfactory solution to your problems, money back or replace new. Customer satisfaction is our goal, so please rest assured to buy!.
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VEVOR Automatic Door Opener, 100-240V for Max.220lbs Doors, Swing Door Operator for Disabilities w/ 2 Wireless Remotes, 2 Exit Buttons, Keypad, 5 ID Cards, 2 Stainless Steel Push Buttons, CE Listed

  • Intelligent Door Opener: Our energy-saving automatic door opener adopts the wide voltage technique, workable with input voltages of AC100V to AC240V, ensuring sufficient power and security. It will re-open the door if it senses an object in the closing path and it's CE approved..
  • Automatically and Manually: The automatic mode is equipped with sensitive 2.4G wireless communication technology, the swing door operator provides high-frequency consistency and stability between the transceiver. You can also choose methods from the devices we provided: 2 exit buttons, 2 pushbuttons, a keypad, and 5 ID cards. In manual mode, the door opens with slight pressure and closes slowly, convenient for the disabled..
  • Wireless Controller: You will get a wireless controller to switch the status of the handicap door opener to fit your requirements. The 4 modes are automatic, manual, resetting mode, and hold-open. Note: The 315 MHz remote control can reach a distance of 33 ft (10 m)..
  • Easy Installation: We provide a kit with complete accessories and detailed instructions for quick installation. You should choose the right doors for perfect use. Suitable door width: 21.6-47 in (550-1200 mm).
  • max. door weight: 220 lbs (100 kg). Please ....
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SSR-100DD Solid State Relay DC-DC 100A 3-32V DC/5-60V Solid State Module

  • Solid state relay ideal for automatic process control application, a must component for temperature controller and other machinery control system..
  • Operating Voltage:5~60V DC. Control Voltage:3-32V DC.
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