Reviews4 Frequency Alarm System

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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HawkEye DT2B DepthTrax

Delivers uninterrupted depth readings from 2.5 to 600 feet on the largest display available on an In-Dash Depth Sounder up to 60 mph. Transducer Frequency-200 kHz.
ShootThru sonar technology allows for depth readings through solid fiberglass hulls and up to 1/8-inch aluminum hulls.
3-stage Advanced Warning System clearly signals an alarm condition with an audible alarm, an ultra bright red LED warning light and LCD alarm indicators.
No glare, polarized LCD icon display with storage sun cover allows for spot free viewing with or without sunglasses.
Algorithmic programming significantly reduces false readings and produces unmatched precision.
HawkEye products are manufactured both in the USA and overseas using technology designed and developed with American ingenuity.

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Thustar Professional Wireless Home Office Security System Remote Control Intelligent LED Display Voice Prompt House Business GSM Wireless Burglar Alarm Auto Dial Outdoor Siren

Network Support: The alarm panel built-in GSM Module, it support GSM SIM card, T-Mobile sim card can work with our system (This alarm do not including GSM sim card). When the sensor is triggered, the alarm panel will make an call or send alert message to the alert phone number you set before. The GSM (only) frequency is 850/900/1800/1900MHZ, which can be applied in all over the world.
In GSM status, 6 groups calling alert phone number and 2 groups help SMS number you can set.
The alarm system can be used internationally, it can work under two conditions: No monthly fees and contracts with security companies. No network, standalone on-site alarming.
Put-in a GSM SIM card (This alarm do not including GSM sim card) to call/send alert message, you can choose one of two ways or use all of them. The whole system complete with fully programmable main unit and wireless sensors. Before using, please kindly read user’s manual.
The alarm panel built-in AAA Ni-Hi rechargeable battery that can last about 8 hours (In the case of power off, the host can continue to work for 8 hours). Door/Window contacts detect any forceful break-in, passive motion sensors detect any suspicious movement or activity, loud, small wired siren up to 110db alarm alerts neigh....

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Horologe Portable Pocket Handy AM/FM Radio-Battery Operated, Sleep Timer, Preset, Earphone Jack, Powered by 2 AAA Batteries …, Black with Earphone

AM/FM Radio with Sleep Timer: 2 bands AM/FM radio with PRESETS, could save 20 AM channels and 20 FM channels. FM from 87. 5 to 108MHZ and AM from 525-1710KHz. You can set sleep timer from 10-90 minutes so that could fall asleep with your favorite channels..
Digital Tuning: With the digital LCD screen and the tuner, you can easily to know AM/FM channels you are listening to and adjust the frequency quickly..
Portable Pocket Radio: Size of this little radio is smaller than a smartphone, easily put into your pocket or bag when sport, travel and shopping..
Alarm Clock Radio: Built in alarm clock, you can set 12/24 time system and choose wakeup with radio or beep when you set alarm clock..
Auto-search and Save Channels: This portable radio could auto-search 20 am or fm channels and save them automatically. You can also manually adjust the frequency and save the channels..

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BY-J BSD Blind Spot Detection System and Line Assist System,BSM Blind Spot Monitoring Blind Spot Dectetion Rearview Mirror, 24GHz Millimeter Wave Radar LED Sign General

【Blindspot Detection System】This system is a vehicle driving assistance device that helps the driver to change lanes safely while driving. Use 24GHz radio frequency sensor to detect the side/rear 3.5*12m range of the vehicle, and start working at 0 speed..
【Microwave Radar Sensor】During driving, when the side/rear vehicle is in danger of collision with our vehicle, the LED lights will light up to notify the driver.
if the left/right direction lights are turned on, there will be an audible warning..
【Warning Alarm Function】The principle of early warning is that when the following vehicle is slower than us, there is no danger of collision and we do not call the police. Similarly, when we overtake, the speed is faster than the following vehicle and we do not call the police..
【Smart car alarm】When waiting for the traffic lights, when the vehicle is stationary, there is no danger of collision and no alarm is issued..
【Blind spot monitoring System】Blind spot monitoring can distinguish fixed objects and moving objects, and fixed objects will not alarm. For example, when you are waiting for traffic lights: after the car stops, the car behind is a fixed object. Moving vehicles, pedestrians, bicycles and motorcycles will sound an alarm when th....

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Motorcycle Bike Anti-Theft Alarm System, 12V Universal Anti-Theft Security Alarm with Double Remote Control

...el alarm horn can effectively deter thieves..
Ultra Low Power Consumption: without an effect on battery life. Use highly integrated coding technology and imported chip with strong anti-interference, more secure and stable performance..
High Performance: This product uses smart alarm automatically recognizes vibration frequency,high-decibel horn alarm and vibration alarm,you will hear the horn alarm, the direction lights will blink and the engine will be locked when someone forcely open the electric door lock or start in anti-theft alerting status..

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