SNDWAY SW-525A 30-130dB Digital Sound Level Meter with Large LCD Display Noise Meter Decibel Wall Mounted Hanging
...t will automatically turn on when connected to the power supply, long press the "switch machine" button, it will shut down, if LCD display appears The numbers on the screen do not jump, and garbled characters appear. You need to restart the machine. If you have any questions, please contact us in time..
5. Note: The device needs an additional charger, which matches the standard 5V 1A charger. The voltage and current must not exceed 5V 1A. If it is too large, it will burn the circuit board. When using the sensor, please pay attention to whether there is any blockage of foreign matter. If the device is turned on, the LCD display does not display, and the sensor may be faulty. Please contact us in time, we will handle it for you as soon as possible..
10 Pcs Portable GPS Tracking Device Mobile Tracking Smart Anti Loss Dog Locator Key Finder GPS Smart Tracker Device for Kids Dog Pet Cat Wallet Keychain Luggage, Alarm Reminder, App Control
Anti Loss Dog Tracker: the dog locator device can help to locate the item quickly and precisely after connecting to your mobile phone.
Just press the button and follow the beeps, and it can locate diverse items like keys, wallets, TV remote controls, keychains, glasses, dog collars or other things within 15m/ 49.21 ft.
Long Lasting Battery: the pet GPS tracking device for dogs is powered by CR2032 battery, which can last over 10 months.
After running out of power, just need to replace the battery, low power consumption.
Made of ABS material, it is sturdy and reliable to use, not easy to break.
Alarm Reminder: in connection state, the phone and the key loss tracker will alarm at the same time when the locator device exceeds the preset range, and you can check the position on the map while they are disconnected..
Bidirectional Item Locating: by clicking on the cell phone app, the smart mobile tracking finder tags will sound an alarm, and by double clicking on the button of the anti loss device, the phone will automatically sound as well, so that you can easily find your lost items.
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 4 motion sensors and 1 receiver, each driveway sensor also has a wireless range of up to 1/4 mile 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..
Olden Days Wall Clock with Real Wood, 4 Chime Options, Swinging Pendulum, Antique Vintage Design, 22\ Large
... from 30-90 DP as person preference . Needless worry the alarm sound, either too loud thus frightening you or too low to wake you up from deep sleeping. One simple ON/OFF button allows you disable the alarm on weekend..
USB Charging Port: Convenient USB port allows you to charge your smartphone , ipad or other smart device without plug in wall. handy, convenient and organized..
Easy Operation Clock: Intuitive setting button, experience zero stress when setting the time or alarm. Easy for kids, seniors and the elderly..
Outlet Powered with Memorized Battery Backup : Plug in to power the clock with the included DC adapter . 2* AAA batteries ( not included ) needed for storing time and alarm settings in case of power outage. With backup battery power source only, the screen will go blank and alarm will not sound..
Bawofu Wireless Door/ Window Contact Build in Antenna Free Battery Universal 433MHz GSM Wireless Magnetic Contact Sensor for Home Office Security Alarm System, Accessories for Wireless 433MHz IP Cam
1.The door alarms for home security can't work standalone, it need work with the home alarm system. When the door detector is triggered, it can send alarm signal to the alarm host.
2.Built-in antenna easy to set up and use - no wiring, it can pair normally 433mhz alarm system.
3.The door alarms for kids safety ,Innovative two-piece magnetic device alerts you when a window or door is opened.
4. The door alarm sensor operates up to 150 feet away from the Choice Alert Wireless Control Center.
5. Wireless door alarm door open alarm, antenna for long wireless distance, free battery provides a layer of security for any door or window inside or outside ;.
Driving Sleep Alarm, Car Fatigue Warning Alarm Device Safe Driving Alert Face Reading Anti Sleep Monitor
【Intelligent detection technology】Through identification technology and pupil detection, it is possible to judge whether the driver is tired or unfocused when analyzing changes in pupil characteristics. It is very intelligent..
【Real-time Warning Alarm】Once detecting the driver with fatigue or distraction, the device will send an alarm signal to alert the driver, which improve driving safety..
【Advanced face recognition】This driving alarm is suitable for all skin types, even drivers with glasses or sunglasses..
【Detection Distance and Time】45-65 cm (±5 cm) detection range and 1~2 seconds after closing the eyes. Alarm signal will send in time..
【Main Function】Sleep alarm is able to send reminders and alarms to the driver in real time to guarantee the safety of the driver's life and property..
Alarm Clock Radio with Dual USB Charging Port for Bedrooms Digital Dual Alarm Clock with 12 White Noise Machine Sound for Adults & Kids Bedside Battery Powered Clock Temperature Snooze Dimmer
[Alarm Clock] This Digital alarm clock for bedroom can set 2 different alarms which is convenient for family members. Its has SNOOZE function for....
[ Radio Alarm Clock] Digital clock battery operated with sleep timer(10-120 Mins), Radio Alarm Clock has manual-scan and auto-scan radio function, can....
[Customizable Alarm Sound] The bedside alarm clock has 5 Sounds which separate weekend/weekday/all-7-day mode that can satisfy the needs of your every....
[Adjustable Volume & Dimmer] Alarm clock aesthetic volume can be adjusted according to your depth of sleep, louder for heavy sleepers while slight for....
[Backup Battery ] Digital clock with USB charger has dual USB ports allow you to charge your smartphone, ipad or other smart device without plug in....
Digital Alarm Clock Radio with Dual USB Charging Port Dual Alarm Clock with 12 White Noise Machine Sound for Adults & Kids Bedside Battery Powered Clock Temperature Snooze Dimmer for Bedrooms
[Alarm Clock] This Digital alarm clock for bedroom can set 2 different alarms which is convenient for family members. Its has SNOOZE function for....
[ Radio Alarm Clock] Digital clock battery operated with sleep timer(10-120 Mins), Radio Alarm Clock has manual-scan and auto-scan radio function, can....
[Customizable Alarm Sound] The bedside alarm clock has 5 Sounds which separate weekend/weekday/all-7-day mode that can satisfy the needs of your every....
[Adjustable Volume & Dimmer] Alarm clock aesthetic volume can be adjusted according to your depth of sleep, louder for heavy sleepers while slight for....
[Backup Battery ] Digital clock with USB charger has dual USB ports allow you to charge your smartphone, ipad or other smart device without plug in....
Aland Digital LCD Screen Table Auto Car Dashboard Desk Date Time Calendar Small Clock
... 30-90 DP as personal preference . Needless to worry the alarm sound, either too loud thus frightening you or too low to wake you up from deep sleeping. One simple ON/OFF button allows you disable the alarm on weekend..
USB Charging Port: Convenient USB port allows you to charge your smartphone , ipad or other smart device without plug in wall. handy, convenient and organized..
Easy Operation Clock: Intuitive setting button , experience zero stress when setting the time or alarm. Easy for kids, seniors and the elderly..
Outlet Powered with Battery Backup: Plug in to power the clock with the included DC adapter . 2* AAA batteries ( not included ) needed for storing time and alarm settings in case of power outage. With backup battery power only, the screen will go blank and alarm will not sound..