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Home >> Home & Garden >> Home Improvement & Tools >> Electrical >> Household Sensors & Alarms

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Aquarium Tank Pool Vertical Floating Switch Water Level Sensor

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1Kg Capacity Platform Scale Load Cell Weighing Sensor New

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5 Pcs 3144 Hall Effect Sensor Magnetic Detector 4.5-24V

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Replacement 110dB Car Auto Security System Alarm Siren Horn

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Household Sensors & Alarms

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DC 12V 2 Wire Industrial Red LED Flashing Alarm Buzzer 100dB BJ-3

DC 12V 2 Wire Industrial Red LED Flashing Alarm Buzzer...: Flashing Alarm Buzzer Model No. BJ-3 Rated Voltage DC 12V Sound Pressure 100dB Light Color Red Overall Size 6.5 x 4.3 x 4cm/2.6" x 1.7" x 1.6" (L*W*H) Mounting Hole Diameter 3mm / 0.12" Wire Length 20cm / 7.9" External...; Add To My Wish List

$9.34
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House Door Window Safety Security Vibration Detector Alarm White

House Door Window Safety Security Vibration Detector Alarm...: Door Detector Alarm Powered by 4 x AA Batteries 9V(Not Included Here) Main Body Size 10 x 5 x 2.5cm / 4" x 2" x 1" (L*W*H) Color White Material Plastic Net Weight 63g Package Content 1 x Door Detector Alarm Designed...; Add To My Wish List

$4.53
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SMF-27 DC 3-24V 30mA Industrial Continuous Sound Electronic Buzzer 90dB

SMF-27 DC 3-24V 30mA Industrial Continuous Sound Electronic...: Electronic Buzzer Model No. SMF-27 Sound-making Type Continuous Sound Rated Voltage DC 3-24V Rated Current 30mA Sound Pressure 90dB Operating Temperature -20°C to +60°C Body Diameter 30mm / 1.2" Overall Size 48...; Add To My Wish List

$3.73
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Universal 5V Low Level Trigger Active Buzzer Module

Universal 5V Low Level Trigger Active Buzzer Module: Buzzer Module Working Voltage DC 5V PCB Size 33 x 13mm/1.3" x 0.5"(L*W) Hole Diameter 3mm/0.1" Net Weight 6g Package Content 1 x Buzzer Module Low level triggering active buzzer module. It has mounting...; Add To My Wish List

$3.65
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Plastic High to Low 2 Channel Speaker Leaver Impedance Convertor for Cars

Plastic High to Low 2 Channel Speaker Leaver Impedance...: Impedance Amplifier Adaptor Main Color Clear, Black, Yellow Cable Length 12cm/ 4.7" Body Size 6.5 x 3.8 x 2.5cm/ 2.6" x 1.5" x 1"(L*W*H) Weight 45g Package Content 1 x Impedance Amplifier Adaptor ...; Add To My Wish List

$4.96
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J1588 1NO 1NC Sump Pumping Liquid Level Control Hanging Switch AC 110V-240V

J1588 1NO 1NC Sump Pumping Liquid Level Control Hanging...: Liquid Level Control Switch Model No. J1588 Contact Type 1NO + 1NC Working Voltage AC 110V-240V Maximum Current 15A Max. Power of Water Pump 0.75KW (1.0HP) Thread Dia. 31mm / 1.2" Top Cylinder Size 8 x 7cm /...; Add To My Wish List

$13.63
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90cm Wire Long AC 110-240V NY-321 Fluid Water Level Control Float Switch NO NC

90cm Wire Long AC 110-240V NY-321 Fluid Water Level Control...: Liquid Level Control Float Switch Model No. NY-321 Contact Type 1NO + 1NC Working Voltage AC 110V-240V Maximum Current 15A Max. Power of Water Pump 0.75KW (1.0HP) Thread Size G 1" Top Cylinder Size 7.9 x 7cm /...; Add To My Wish List

$13.11
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HRB-P75A2 Industrial Flush Mounting Alarm Panel Buzzer AC200-220V 75dB

HRB-P75A2 Industrial Flush Mounting Alarm Panel Buzzer...: Alarm Buzzer Model No. HRB-N80 Working Voltage AC200-220V Decibel 75dB Mounting Type Flush Mounting Overall Size 8.5 x 8.4 x 4cm / 3.3" x 3.3" x 1.5" (L*W*T) Body Diameter 7.3cm / 2.9" Wire Length 20cm / 7.87" Mounting...; Add To My Wish List

$10.08
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Office Motion Sensitive Remote Control Door Alarm Alert 105dB White

Office Motion Sensitive Remote Control Door Alarm Alert...: Note: Please unplug the insulator of the remote control battery before use. Remote Control Alarm Material Plastic Color White Alarm Power By 4 x AABattery(not included here) Remote Control Power By 3 x AG13 Cell...; Add To My Wish List

$14.49
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Office 10mm Distance Magnetic Sensor Door Window Thief Entry Alarm White

Office 10mm Distance Magnetic Sensor Door Window Thief...: Door Window Entry Alarm Material Plastic, Magnet Alarm Sound 105dB Max. Sensor Distance 10mm/ 0.39" Powered By 3 x LR44 Button Cell(Here is not Included) Color White Alarm Total Size 53 x 35 x 20mm/ 2" x 1.3" x...; Add To My Wish List

$3.60
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Metal Rolling Gate Window Door Magnetic Contacts Alarm Reed Switch NC

Metal Rolling Gate Window Door Magnetic Contacts Alarm Reed...: Door Magnetic Switch Model ML-56 Switch Type NC Rated Current 500mA Rated Voltage 100V DC Rated Power 10W Operating Distance 30-40mm Pin Distance 29mm/ 1.1" Cable Length 26cm / 1" Size(Approx) 4.8 x 2.4 x 1.5cm / 1.9" x...; Add To My Wish List

$11.14
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DC 12V 300mA 110dB Plastic Alarm Speaker Strobe Siren Red White

DC 12V 300mA 110dB Plastic Alarm Speaker Strobe Siren Red...: Strobe Siren Main Material Plastic, Electronic Parts Main Color White, Red Rated Voltage DC 12V Rated Current 300mA Voice Loudness 110dB / 30cm Flashing Rate / min 150 times Install Screw Dia 3mm / 0.12" Total Size...; Add To My Wish List

$7.95
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