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$45.99
Power Failure Alarm 2 Pack, Freezer Power Outage Alarm 7 Sirens, 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Monitor For Refrigerator, Sump
Amazon.com
82
Free shipping
$45.99
Power Failure Alarm 2 Pack, Freezer Power Outage Alarm 7 Sirens, 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Monitor For Refrigerator, Sump
Amazon.com
82
$22.99
$27.69
Power Failure Alarm, Freezer Power Outage Alarm 7 Sirens, Freezer Alarm With 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Alarm Monitor For
Amazon.com
1K+
16% off
$22.99
$27.69
Power Failure Alarm, Freezer Power Outage Alarm 7 Sirens, Freezer Alarm With 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Alarm Monitor For
Amazon.com
1K+
$17.99
Power Failure Alarm, Super Loud 0-120Db Adjustable 6 Siren Power Outage Alarm For Freezer 12H Alert & HV/LV Alert For Freezer,Fridge, Basement,Garage
Amazon.com
15
$17.99
Power Failure Alarm, Super Loud 0-120Db Adjustable 6 Siren Power Outage Alarm For Freezer 12H Alert & HV/LV Alert For Freezer,Fridge, Basement,Garage
Amazon.com
15
$59.99
Power Failure Detector With Text Message And Email Alerts. Sends SMS Power Outage Alarms And Restoration Alerts To Two Phones.
Amazon.com
1K+
Free shipping
$59.99
Power Failure Detector With Text Message And Email Alerts. Sends SMS Power Outage Alarms And Restoration Alerts To Two Phones.
Amazon.com
1K+
$21.49
Power Failure Alarm For Freezer, Briidea Power Outage Alert With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring
Amazon.com
18
$21.49
Power Failure Alarm For Freezer, Briidea Power Outage Alert With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring
Amazon.com
18
$18.99
Briidea Power Failure Outage Alarm For Freezer, With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring Refrigerators,
Amazon.com
222
$18.99
Briidea Power Failure Outage Alarm For Freezer, With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring Refrigerators,
Amazon.com
222
$59.99
Risinglink Power Failure Alarm, Power Failure Detector, With Text Message, Email, And Audio Alerts(2Nd Generation)
Amazon.com
414
Free shipping
$59.99
Risinglink Power Failure Alarm, Power Failure Detector, With Text Message, Email, And Audio Alerts(2Nd Generation)
Amazon.com
414
$10.11
Power Failure Alarm, Power Out/Failure Alarm LED Indicator Siren Alarms Smart 120Db Automatic Power Cut Failure Alarm Warning Siren CN Plug 220V
Amazon.com
571
$10.11
Power Failure Alarm, Power Out/Failure Alarm LED Indicator Siren Alarms Smart 120Db Automatic Power Cut Failure Alarm Warning Siren CN Plug 220V
Amazon.com
571
$51.29
$59.99
Yolink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit With AC Power Outage Alert, Lora Long-Range, Remote Monitoring, App Alerts, Text/SMS,
Amazon.com
67
Free shipping
14% off
$51.29
$59.99
Yolink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit With AC Power Outage Alert, Lora Long-Range, Remote Monitoring, App Alerts, Text/SMS,
Amazon.com
67
$89.00
Watchdog Home Monitor - Water, Temperature, Humidity, And Power Outage Alarm Sensor With Wifi
Amazon.com
85
Free shipping
$89.00
Watchdog Home Monitor - Water, Temperature, Humidity, And Power Outage Alarm Sensor With Wifi
Amazon.com
85
$10.99
Power Failure Alarm, 110V To 220V Automatic Power Cut Failure Outage Alarm 118Db LED Indicator Smart Alarm Warning Siren, Needs 9V Battery (NOT
Amazon.com
$10.99
Power Failure Alarm, 110V To 220V Automatic Power Cut Failure Outage Alarm 118Db LED Indicator Smart Alarm Warning Siren, Needs 9V Battery (NOT
Amazon.com
$7.99
Watris Veiyi 120Db Power Failure Outlet Alarm, Smart Outage Alarm Warning Siren, Automatic Power Cut Failure Alerter For Home Office Shop, Power By 9V
Amazon.com
$7.99
Watris Veiyi 120Db Power Failure Outlet Alarm, Smart Outage Alarm Warning Siren, Automatic Power Cut Failure Alerter For Home Office Shop, Power By 9V
Amazon.com
$27.59
2Pack Power Outage Failure Cut Loss Alarmpower Failure Sound And Light Alarm Sensor Alert With Flash Light,0-120Db Siren Alarm Sound Can Be Adjusted
Amazon.com
1
$27.59
2Pack Power Outage Failure Cut Loss Alarmpower Failure Sound And Light Alarm Sensor Alert With Flash Light,0-120Db Siren Alarm Sound Can Be Adjusted
Amazon.com
1
$41.99
Power Failure Alarm, Power Outage Alarm 2 Pack For Freezer With LED Indicator 7 Siren 0-110Db Adjustable 12H Alert, Power Loss Monitor For
Amazon.com
82
Free shipping
$41.99
Power Failure Alarm, Power Outage Alarm 2 Pack For Freezer With LED Indicator 7 Siren 0-110Db Adjustable 12H Alert, Power Loss Monitor For
Amazon.com
82
$9.99
Automatic Power Failure Alarm, 120Db Power Cut Alarm, LED Indicator Failure Outage Alarm, Smart Warning Sirenpower By 9V Battery (NOT Included),Plug
Amazon.com
9
$9.99
Automatic Power Failure Alarm, 120Db Power Cut Alarm, LED Indicator Failure Outage Alarm, Smart Warning Sirenpower By 9V Battery (NOT Included),Plug
Amazon.com
9
$28.99
Briidea Power Failure Alarm With LED Indicator & 80Db Siren, Powered By Rechargeable Battery (Included), Perfect For Monitoring Refrigerators,
Amazon.com
236
$28.99
Briidea Power Failure Alarm With LED Indicator & 80Db Siren, Powered By Rechargeable Battery (Included), Perfect For Monitoring Refrigerators,
Amazon.com
236
$11.28
Tosuny Power Failure Alarm, Automatic Power Cut Failure Alerter, Power Warning Alarm AC 220V LED Indicator Smart 120Db Automatic Power Cut Failure
Amazon.com
6
$11.28
Tosuny Power Failure Alarm, Automatic Power Cut Failure Alerter, Power Warning Alarm AC 220V LED Indicator Smart 120Db Automatic Power Cut Failure
Amazon.com
6
$39.99
Wi-Fi Smart Power Failure Alarm With Surge Protector, Remotely Monitor And Control Your Refrigerator Via App, Ensuring The Safety Of Refrigerator And
Amazon.com
45
Free shipping
$39.99
Wi-Fi Smart Power Failure Alarm With Surge Protector, Remotely Monitor And Control Your Refrigerator Via App, Ensuring The Safety Of Refrigerator And
Amazon.com
45
$25.99
Power Failure Alarm With 2 Socket,80-110Db Adjustable Freezer Alarm With 4 Siren,Power Loss Alert With LED Indicator,Blackout Alert For GFI/GFCI Trips
Amazon.com
39
$25.99
Power Failure Alarm With 2 Socket,80-110Db Adjustable Freezer Alarm With 4 Siren,Power Loss Alert With LED Indicator,Blackout Alert For GFI/GFCI Trips
Amazon.com
39
$32.99
Camelion 3-Pack 4-In-1 Plug-In Power Failure Night Light,Motion And Light Sensor, Rechargeable Emergency Flashlight, Power Outage Light, Great For
Amazon.com
8
$32.99
Camelion 3-Pack 4-In-1 Plug-In Power Failure Night Light,Motion And Light Sensor, Rechargeable Emergency Flashlight, Power Outage Light, Great For
Amazon.com
8
$59.99
Power Failure Detector With Text Message And Email Alerts, Sends SMS Power Outage Alert And Power Restoration To Two Phones
Walmart
Free shipping
30-day returns
$59.99
Power Failure Detector With Text Message And Email Alerts, Sends SMS Power Outage Alert And Power Restoration To Two Phones
Walmart
30-day returns
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    Shop power failure sensor

    Sponsored
    About our ads
    $45.99
    Power Failure Alarm 2 Pack, Freezer Power Outage Alarm 7 Sirens, 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Monitor For Refrigerator, Sump
    Amazon.com
    82
    Free shipping
    $45.99
    Power Failure Alarm 2 Pack, Freezer Power Outage Alarm 7 Sirens, 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Monitor For Refrigerator, Sump
    Amazon.com
    82
    $22.99
    $27.69
    Power Failure Alarm, Freezer Power Outage Alarm 7 Sirens, Freezer Alarm With 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Alarm Monitor For
    Amazon.com
    1K+
    16% off
    $22.99
    $27.69
    Power Failure Alarm, Freezer Power Outage Alarm 7 Sirens, Freezer Alarm With 0-110Db Adjustable LED Indicator 12H Alert, Power Loss Alarm Monitor For
    Amazon.com
    1K+
    $17.99
    Power Failure Alarm, Super Loud 0-120Db Adjustable 6 Siren Power Outage Alarm For Freezer 12H Alert & HV/LV Alert For Freezer,Fridge, Basement,Garage
    Amazon.com
    15
    $17.99
    Power Failure Alarm, Super Loud 0-120Db Adjustable 6 Siren Power Outage Alarm For Freezer 12H Alert & HV/LV Alert For Freezer,Fridge, Basement,Garage
    Amazon.com
    15
    $59.99
    Power Failure Detector With Text Message And Email Alerts. Sends SMS Power Outage Alarms And Restoration Alerts To Two Phones.
    Amazon.com
    1K+
    Free shipping
    $59.99
    Power Failure Detector With Text Message And Email Alerts. Sends SMS Power Outage Alarms And Restoration Alerts To Two Phones.
    Amazon.com
    1K+
    $21.49
    Power Failure Alarm For Freezer, Briidea Power Outage Alert With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring
    Amazon.com
    18
    $21.49
    Power Failure Alarm For Freezer, Briidea Power Outage Alert With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring
    Amazon.com
    18
    $18.99
    Briidea Power Failure Outage Alarm For Freezer, With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring Refrigerators,
    Amazon.com
    222
    $18.99
    Briidea Power Failure Outage Alarm For Freezer, With LED Indicator Lights And 80-120Db Adjustable Alarm, Perfect For Monitoring Refrigerators,
    Amazon.com
    222
    $59.99
    Risinglink Power Failure Alarm, Power Failure Detector, With Text Message, Email, And Audio Alerts(2Nd Generation)
    Amazon.com
    414
    Free shipping
    $59.99
    Risinglink Power Failure Alarm, Power Failure Detector, With Text Message, Email, And Audio Alerts(2Nd Generation)
    Amazon.com
    414
    $10.11
    Power Failure Alarm, Power Out/Failure Alarm LED Indicator Siren Alarms Smart 120Db Automatic Power Cut Failure Alarm Warning Siren CN Plug 220V
    Amazon.com
    571
    $10.11
    Power Failure Alarm, Power Out/Failure Alarm LED Indicator Siren Alarms Smart 120Db Automatic Power Cut Failure Alarm Warning Siren CN Plug 220V
    Amazon.com
    571
    $51.29
    $59.99
    Yolink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit With AC Power Outage Alert, Lora Long-Range, Remote Monitoring, App Alerts, Text/SMS,
    Amazon.com
    67
    Free shipping
    14% off
    $51.29
    $59.99
    Yolink Smart Power Fail Alarm & Hub Kit, Smart Home Starter Kit With AC Power Outage Alert, Lora Long-Range, Remote Monitoring, App Alerts, Text/SMS,
    Amazon.com
    67
    $89.00
    Watchdog Home Monitor - Water, Temperature, Humidity, And Power Outage Alarm Sensor With Wifi
    Amazon.com
    85
    Free shipping
    $89.00
    Watchdog Home Monitor - Water, Temperature, Humidity, And Power Outage Alarm Sensor With Wifi
    Amazon.com
    85
    $10.99
    Power Failure Alarm, 110V To 220V Automatic Power Cut Failure Outage Alarm 118Db LED Indicator Smart Alarm Warning Siren, Needs 9V Battery (NOT
    Amazon.com
    $10.99
    Power Failure Alarm, 110V To 220V Automatic Power Cut Failure Outage Alarm 118Db LED Indicator Smart Alarm Warning Siren, Needs 9V Battery (NOT
    Amazon.com
    $7.99
    Watris Veiyi 120Db Power Failure Outlet Alarm, Smart Outage Alarm Warning Siren, Automatic Power Cut Failure Alerter For Home Office Shop, Power By 9V
    Amazon.com
    $7.99
    Watris Veiyi 120Db Power Failure Outlet Alarm, Smart Outage Alarm Warning Siren, Automatic Power Cut Failure Alerter For Home Office Shop, Power By 9V
    Amazon.com
    $27.59
    2Pack Power Outage Failure Cut Loss Alarmpower Failure Sound And Light Alarm Sensor Alert With Flash Light,0-120Db Siren Alarm Sound Can Be Adjusted
    Amazon.com
    1
    $27.59
    2Pack Power Outage Failure Cut Loss Alarmpower Failure Sound And Light Alarm Sensor Alert With Flash Light,0-120Db Siren Alarm Sound Can Be Adjusted
    Amazon.com
    1
    $41.99
    Power Failure Alarm, Power Outage Alarm 2 Pack For Freezer With LED Indicator 7 Siren 0-110Db Adjustable 12H Alert, Power Loss Monitor For
    Amazon.com
    82
    Free shipping
    $41.99
    Power Failure Alarm, Power Outage Alarm 2 Pack For Freezer With LED Indicator 7 Siren 0-110Db Adjustable 12H Alert, Power Loss Monitor For
    Amazon.com
    82
    $9.99
    Automatic Power Failure Alarm, 120Db Power Cut Alarm, LED Indicator Failure Outage Alarm, Smart Warning Sirenpower By 9V Battery (NOT Included),Plug
    Amazon.com
    9
    $9.99
    Automatic Power Failure Alarm, 120Db Power Cut Alarm, LED Indicator Failure Outage Alarm, Smart Warning Sirenpower By 9V Battery (NOT Included),Plug
    Amazon.com
    9
    $28.99
    Briidea Power Failure Alarm With LED Indicator & 80Db Siren, Powered By Rechargeable Battery (Included), Perfect For Monitoring Refrigerators,
    Amazon.com
    236
    $28.99
    Briidea Power Failure Alarm With LED Indicator & 80Db Siren, Powered By Rechargeable Battery (Included), Perfect For Monitoring Refrigerators,
    Amazon.com
    236
    $11.28
    Tosuny Power Failure Alarm, Automatic Power Cut Failure Alerter, Power Warning Alarm AC 220V LED Indicator Smart 120Db Automatic Power Cut Failure
    Amazon.com
    6
    $11.28
    Tosuny Power Failure Alarm, Automatic Power Cut Failure Alerter, Power Warning Alarm AC 220V LED Indicator Smart 120Db Automatic Power Cut Failure
    Amazon.com
    6
    $39.99
    Wi-Fi Smart Power Failure Alarm With Surge Protector, Remotely Monitor And Control Your Refrigerator Via App, Ensuring The Safety Of Refrigerator And
    Amazon.com
    45
    Free shipping
    $39.99
    Wi-Fi Smart Power Failure Alarm With Surge Protector, Remotely Monitor And Control Your Refrigerator Via App, Ensuring The Safety Of Refrigerator And
    Amazon.com
    45