Top 4 Frequency Alarm System

Guardline 500 Foot Range Wireless Driveway Alarm [2 Motion Detector Alarm Sensors & 1 Receiver] Weatherproof Outdoor Security Alert System for Home & Property

  • Security - Feel a sense of safety around your home with our weatherproof perimeter alarm set. It's sensitive to heat and motion during the day and at night, making it an alert system you can count on..
  • Easy to Install - No need to call in an expensive technician for this home security system. Our outdoor motion sensor alarm is a plug-and-play device that installs in minutes..
  • Long Range - With 2 motion sensors and 1 receiver, each driveway sensor also has a wireless range of up to 500 feet for plenty of coverage around your property..
  • Compatibility - This motion detector alarm unit runs at 915 MHz. If you are expanding your Guardline wireless alarm system, please make sure you are purchasing the same frequency as your existing set..
  • Customizable - Regardless of the size of your home and property, you can configure this system of motion detectors with a motion alarm sensor add on, or extra receivers for greater peace of mind..
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Supplying Demand CP115 SPCP115 HVAC/R Condensate Pump with Alarm 1/10HP 115VAC

  • High quality pump designed to remove condensate from AC systems, condensing furnaces and boilers, ice machines, drinking fountains, and coolers. These pumps incorporate an audible alarm, and an overflow switch that can be used to shut down the system..
  • Applications include HVACR, ice machines, drinking fountains, and coolers..
  • 22 feet of standard lift at 10 GPH | Independent NC safety switch & motor switch | Suitable for acidic condensate | 1/4 inch quick-connect terminals | 3 terminals are provided for easy connection | Independent NO audible alarm switch rated at 80 dB.
  • Specially designed leak-free motor and safety float | 3/8 inch rubber ball check valve | Vibration absorbing feet | Metal side mount tabs, 11-1/2 inches on center | 3 inlet holes | 6 foot power cord included.
  • Alarm Sound Level: 80 dB | Maximum Temperature: 110° F | Tank Capacity: 1/2 gallon | Discharge: 3/8 inch | Barb. Frequency: 60 Hz | Motor Overload Protector: Yes | Amperage: 1.45 A | Watts: 80 W | UL Listed: Yes | Motor Horsepower: 1/10 HP | Voltage: 115 VAC | Dimensions: 5 inches wide x 11-1/4 inches long x 7-1/4 inches tall.
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Modern Radio Reception (Classic Reprint)

  • 200mm Ferrite AM Antenna Bar Allows For Best AM Reception, 10 Memory Preset Stations (5 FM, 5 AM).
  • PLL Synthesized Tuning System for Excellent Reception and Stereo Audio Performance.
  • Alarm by Radio or HWS (Humane Wake System) Buzzer and Sleep Timer.
  • Includes Switching AC Adapter 100-240V, 50/60Hz.
  • Easy to Read LCD Display with Backlight and Battery Power Indicator.
  • TUNER: FM – Frequency (megahertz) = 87.5 – 108. Frequency (kilohertz)= 522 – 1629 (9k)/ 520 – 1710 (10k).
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Amrex 2\x2\ Sponge Insert Replacements From Caputron (10 Inserts/Pack)

  • Design The Output Contact Adopts Relay, Which Can Withstand Large Output Current, And Can Set System Parameters According To The Button, So As To Meet The Application Of Different Occasions..
  • Characteristics Dc20D Is One Module Used For Diesel Engine Or Generator. The Status Of The Engine And Generator Can Be Checked Conveniently..
  • MultiFunctional It Is With The Functions Of Auto Start/Stop, Protection And Alarm Indication. Dc Power And Running Situation Is Indicated On The Front Panel..
  • Easy To Use Add Current, Speed Measurement Display Function, Add Rs485 Interface, Can Be Connected To The Computer..
  • Good Effects Over Frequency, Low Frequency, Over Voltage, Under Voltage, Low Oil Pressure, High Temperature, Low Water Level, Low Oil Level, Charge Failure, OverTime Stop, Emergency Stop Alarm System As Well As Low Battery Voltage Can Be Indicated In Time..
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QPKING Electric System Circuit Tester,Automotive Electrical System Tools,9V-30V Electrical System Diagnostic Tool With 2.4-inch LCD Display

  • ...ly test and automatically identified the Voltage, resistance, Positive and Negative poles of the tested component, which brings the user a lot of conveniences..
  • [Oscilloscope Mode&Relay Test]: Car Electric System Tester is not only able to display the parameter curve diagram of the tested component, such as voltage, frequency, time, etc, but also can test the common automotive relay, like 5-terminal relays, and 4-terminal relays..
  • [Component Activation&Injector Mode]: It can generate "Active" signals for components, such as lights, motors, and other on-board electronic devices. Also different pulse signals can be output to the injector, which provides 4 pulse modes to better detect the condition of the injector..
  • [0-5V Power Supply&Voltage Alarm]: Capable of setting 0-5V output voltage, used to verify the wiring condition of the tested component. Equipped with voltage setting alarm. If a short circuit or fault causes the voltage to be greater than or less than the set value, the device will alarm..
  • [Multi-language Feature]: 14 languages supported, English, Spanish, German, Russian, Italian, Polish, Portuguese, French, Vietnamese, Malaysian, Filipino, Indonesian, Arabic and Thai..
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Supplying Demand CP230 SPCP230 HVAC Condensate Pump 230V with Audible Alarm

  • This pump is designed to remove condensate from AC systems, condensing furnaces and boilers, ice machines, drinking fountains, and coolers. These pumps incorporate an audible alarm, and an overflow switch that can be used to shut down the system..
  • Motor Horsepower: 1/10 HP | Voltage:208 / 230 VAC | Watts: 75 W | Amperage: .72 A | Frequency: 50 / 60 Hz | Motor Overload Protector:Yes | Height Total: 7.25" | Length Total: 11.25" | Width Total:5" | Tank Capacity: 1/2 Gal. | Discharge: 3/8" Barb | Maximum Temperature: 110° F | Alarm Sound Level: 80 dB.
  • 22 feet of standard lift @ 10 GPH | Independent NC safety switch & motor switch | Suitable for acidic condensate | 1/4" quick connect terminals | 3 terminals provided for easy connection.
  • Independent NO audible alarm switch rated @ 80 dB | Specially designed leak-free motor and safety float | 3/8" rubber ball check valve.
  • Vibration absorbing feet | Metal side mount tabs, 11.5" on center | 3 inlet holes | 6 foot power cord included.
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2022 Ultrasonic Animal Repellent, Outdoor Solar Powered IP44 Waterproof Pest Deterrent, Motion Activated PIR Sensor Rodent Control, Flashing LED Light and Sound Effectively Repel Squirrel, Rodents.

  • 3-in-1 Animal Repellent - Available at varying ultrasonic frequency, harsh dual-colored ON/OFF LED flashing lights and optional audible alarm make it more effective to drive away the most aggressive animals that may adapt and become immune to a certain frequency of ultrasonic wave..
  • Motion Activated Pest Control System - Protect your property with an area up to 1,615 sq.ft. The most advanced PIR sensor can detect animals’ motion within a distance up to 33 ft..
  • Solar Powered & Rechargeable Battery - Feature advanced solar panel with 18650 3.7V lithium rechargeable battery ensures the repeller always work at status of sufficient energy. IP66 waterproof design makes it withstand any weather conditions..
  • 5 Repellent Modes for Options - 5 deterrent setting to effectively scare away as many animal as possible like mic, rats, dogs, foxes, martens, raccoon and birds. Twist “Audible Alarm” and “Frequency” knobs allow you to programme pest control per your needs..
  • Eco-friendly & Versatile: No traps, no dead animals, and chemical free. Adjustable frequency and optional LED flashing and audible alarm allow you to get rid of any animals, or repel them at the same time..
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Energy Dynamotor,Miniature Hand-cranked USB Charging Generator Power for Backup Lighting Power Supply,Charging,Testing, Teaching,Hydraulic Generator,etc

  • DC20D is one module used for Diesel Engine or Generator..
  • It is with the functions of Auto Start/Stop, Protection and Alarm indication. DC Power and Running situation is indicated on the front panel..
  • The status of the engine and generator can be checked conveniently..
  • Over Frequency, Low Frequency, Over Voltage, Under Voltage, Low Oil Pressure, High Temperature, Low Water Level, Low Oil Level, Charge Failure, Over-time Stop, Emergency Stop Alarm System as well as Low Battery Voltage can be indicated in time..
  • The output contact adopts relay, which can withstand large output current, and can set system parameters according to the button, so as to meet the application of different occasions..
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Professional Timer Stopwatch Digital Sports Stopwatch with Countdown Timer 100 Lap Memory 0.01 Second Timing,Water Resistant,Multi Functional Stopwatch for Swimming Running Training etc

  • Professional Stopwatch: Multi-functional milliseconds stopwatch,three row display,two sets of record memory，100 records per group，1/100 seconds in units，Can look up records up and down, read the Fastest time（FS）,just suitable for sports competition,swimming,running,training etc..
  • Timer:Countdown max to 9 hours, 59 minutes, 59 seconds..
  • Time and Alarm:Calendar display,can choose 12 /24 hour system,2 alarm clock(can turn off)..
  • Paddling frequency meter measurement：For measuring rowing frequency..
  • Metronome function:Frequency from 10 to 320 times per minute..
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Skoolie!: How to Convert a School Bus or Van into a Tiny Home or Recreational Vehicle

  • ...experience. -【Please note】 If you feel the induction system of this product is too sensitive, you can refer to the manual to adjust the sensitivity of the alarm yourself..
  • 【Specification】Main unit: Working voltage: DC 12 ±3V Static current:10 mA Siren: 10A Working frequency: 433.92MHZ Remote control: Working voltage: DC 12V Average static current:0 mA Battery:6V CR2016*2 About installation: The product need installed by the Profesionales with Car electrician certificated OR by oneself For 12V DC car The item without central door lock functons.
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Guardline 500 Foot Range Wireless Driveway Alarm [1 Motion Detector Alarm Sensor & 1 Receiver] Weatherproof Outdoor Security Alert System for Home & Property

  • Security - Feel a sense of safety around your home with our weatherproof perimeter alarm set. It's sensitive to heat and motion during the day and at night, making it an alert system you can count on..
  • Easy To Install: Ordinarily, the installation of the equipment by a technician is the most costly part of a home security system, but this set is easy to install and you won’t have to worry about anyone else knowing about it. Installation Tip: Do not point sensor toward sun..
  • Long Range - With 1 motion sensor and 1 receiver, each driveway sensor also has a wireless range of up to 500 feet for plenty of coverage around your property..
  • Compatibility - This motion detector alarm unit runs at 915 MHz. If you are expanding your Guardline wireless alarm system, please make sure you are purchasing the same frequency as your existing set..
  • Customizable - Regardless of the size of your home and property, you can configure this system of motion detectors with a motion alarm sensor add on, or extra receivers for greater peace of mind..
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Homicial Digital Alarm Clock Radio for Bedroom with AM/FM Radio Dual Alarms, Preset, Sleep Timer and Dimmer, 4.5\ Green LED Display, Corded Electric Powered

  • ...ds – This digital alarm clock has 2 alarms for waking up. Alarm volume is adjustable from 5-16 levels. You can set the alarm goes off with AM/FM radio, start a fresh day with your favorite radio station.
  • Digital Tuning AM FM Radio with Preset and Sleep Timer – With the clear LED display, you’ll easily know the frequency when tuning the radio frequency. With the Preset function, saving favorite channels (20 AM and 20 FM) for easy quick-visit next time. At the night, set a timer to let the radio playing for a certain time, fall asleep with happy.
  • Electric Powered with Battery Backup – The alarm clock radio is powered by AC 120V（not battery powered）, Plug in outlet to light display and listen to the radio. Battery backup only for keep tracking of settings when power out, can’t power the clock or radio.
  • Dimmer 1.6” LED Large Numbers – 4.5 Inches large screen alarm clock with large 1.6” GREEN LED numbers, time and content are easy to see at a glance across the bedroom or living room. 4 level dimmer option for you to select own comfortable brightness. Neither too bright to affect your sleep or nor too dim to see.
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