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DC 24V 100dB Electronic Alarm with Strob Red Light, High Decibel Electronic Beep Buzzer for Car Alarm Home Security System
Description:
BJ-3 is a DC 24V 100dB Audible Visual Alarm. It works as Red Flashing and High Decibel Buzzer after power ON. It can be used for on-site audible and flashing alarms.
Features:
Loud Sound Alarm Wit...
$4.19
$5.99
SKU: GY20964-1
$4.19
$5.99
31
LCD1602 Display Electronic Clock Kit, 12H/24H Date Time Temperature Alarm Clock Soldering Practice Kits for STEM Teaching Students Learning
1.Introduction:
It is a LCD1602 Display Electronic Clock DIY Kit. It allows you to display the current date, time, temperature, alarm, and even switch between 12H/24H display modes in real time.
The display brightness can be adjus...
$8.00
$15.99
SKU: GY21266-1
$8.00
$15.99
50
DC 5V Motorcycle Anti-theft Vibration Alarm Circuit DIY Kit
1.Description:
This is a motorcycle anti-theft vibration alarm circuit composed of CD4801, which can effectively prevent your motorcycle from being stolen. Whenever someone tries to move your vehicle or start the motorcy...
$2.79
$3.99
SKU: GY21021-1
$2.79
$3.99
30
DC Voltage Power Display Module, 12V 24V 36V 48V 72V Battery Capacity Monitor, 7V-80V Voltage Tester Alarm
1.Description:
XH-M241 is a Programmable Battery Capacity Monitor which can not only supports lithium battery, lead-acid battery, LiFePO4 battery, but also used for other types of batteries and power supply, also can support multiple b...
$7.69
$10.99
SKU: GY20709
$7.69
$10.99
31
DC 12V-24V Ultrasonic Range Finder Module Relay Switch 5-500cm Adjustable Distance Tester for Alarm
1.Description:
It is a DC12V-24V Ultrasonic Range Finder Module Relay Switch 5-500cm Adjustable Distance Tester for Alarm.
2.Feature:
1>.High measurement accuracy
2>.Strong anti-interference
...
$19.59
$27.99
SKU: GY20850-1
$19.59
$27.99
30
DIY Power Outage Alarm Kits Power Off Alarm Electronic Soldering Practice Kit
Description:
Are you worried about unexpected power outages damaging your equipment? This power outage alarm kit can help. It is easy to assemble and features both an alarm circuit and a city power monitoring circuit. The LED on the bo...
$4.05
$5.79
SKU: GY20968-1
$4.05
$5.79
30
DIY Kit Flame Fire Monitoring And Detection Module Automatic Alarm Household Fire Protection System DIY Electronic Kit
1.Description:
The circuit uses an infrared receiving diode as the sensor for flame detection. It is powered by a 5V DC voltage and can be tested by simulating a warehouse fire with a lighter at a distance of 30cm above ...
$2.79
$3.99
SKU: GY21020-1
$2.79
$3.99
30
DC 12V 24V 48V 2-Channel PWM 4-Wire Fan Temperature Controller Speed Governor Display Module for PC Fan/Alarm
1.Description:
It is a PWM 4-Wire Fan Temperature Controller.It has a temperature and speed display and a stall alarm.
2.Feature:
1>.Digital display
2>.Wide operating voltage
3>.Dual indep...
$7.41
$10.59
SKU: GY17493
$7.41
$10.59
30
DC 5V Colorful LED Electronic Clock Kit, DIY Soldering Project, 12Hours 24Hours Display Date Time Temperature Alarm Clock with Purple Case
1.Introduction:
HU-058 is a RGB Colorful LED Digital Electronic Clock DIY Kit. It’s a DIY kit which comes with various components. User need to install each component by hand. It not only can exercise and improve sold...
$9.79
$13.99
SKU: GY21279-1
$9.79
$13.99
31
DC 5V Colorful LED Electronic Clock Kit, DIY Soldering Project, 12Hours 24Hours Date Time Temperature Alarm Clock Automatic Brightness Adjustment
1.Introduction:
HU-058 is a RGB Colorful LED Digital Electronic Clock DIY Kit. It’s a DIY kit which comes with various components. User need to install each component by hand. It not only can exercise and improve sold...
$9.79
$13.99
SKU: GY21263-1
$9.79
$13.99
31
DC 12V 24V 48V PWM 4-Wire Fan Temperature Controller Speed Governor Display Module for PC Fan/Alarm
1.Description:
It is a PWM 4-Wire Fan temperature controller.It can be used for industrial fans.
2.Feature:
1>.Digital display
2>.Support EC four-wire fan control
3>.Support low temperatu...
$5.95
$8.50
SKU: GY17486
$5.95
$8.50
30
DC 12V 2Bit PWM 3-Wire Fan Temperature Controller 2A Speed Governor for PC Fan/Alarm
1.Description:
It is a PWM 3-wire fan temperature controller.It can display temperature and fan speed, and can turn off the fan.
2.Feature:
1>.Digital display
2>.Support reverse connection prot...
$7.69
$10.99
SKU: GY17491
$7.69
$10.99
31
