High sensitivity of voltage monitoring, monitoring of the input voltage area: AC110V-AC265V.

Can be used in conjunction with other alarm monitoring system, when the criminals attempt to cut off the power (to make monitoring or alarm system failure), the alarm immediately high alarm. Under normal power supply conditions! If there is a sudden power outage (blackout or trip), the alarm will alarm immediately. (Can be turned off to terminate the alarm,)

Alarm volume up to 120dB or more;

Built-in automatic trickle charge (can effectively offset the standby battery self-discharge), can use ordinary batteries, but also use rechargeable batteries. (The battery does not consume power in standby mode)

Widely used in telecommunication rooms, hospitals, farms, industrial and mining enterprises, institutions, substations and so on. As a power failure warning, the power failure reminds the product.

The product requires you to purchase an additional DC9V battery (battery model 6F22). When installing the battery, be careful not to install the positive and negative poles of the battery upside down. If the battery is installed upside down, the device will not work (that is, when the device switch is turned on and AC220V is turned off, the indicator light will not light up and there will be no alarm sound) .

The indicator light does not light up when the alarm is in standby mode. When the device turns on the switch and there is no AC220V voltage in the plug, the alarm indicator light lights up and sounds an alarm until the switch is turned off or the battery is dead or the plug has AC220V voltage.

For reference, the new DC9V battery can last the alarm in the alarm state for 30 to 60 minutes, and it can be used in the non-alarm state for 6 to 18 months.

Power Failure Alarm:There are different alarm sounds when the power is off and on. Warning can be manually muted via on/off switch

LED Indicator Light:The LED indicator light can show power failure/fault alarm and power status, flash only when power is off

High voltage resistant design: even if the voltage of the power supply exceeds the standard, it can still work normally. The alarm volume is 118dB and the alarm can be heard clearly

EASY TO USE - Simply plug into an outlet and turn on the switch. Powered by 1 x 9V battery (not included), easy to replace the battery

Scope of application: suitable for refrigerators, freezers, sump pumps, aquariums, widely used in industrial and mining enterprises, substations, telecommunication rooms, farms, etc

LED indicator shows power out / failure alarm and power condition.

The siren alarms when the power supply is cut off until restore power.

The warning could be manual muted by on/off switch.

Drawer-type cell cover design, can change the battery easily.

High voltage resistant design, works fine even when power voltage exceeds standard.

Power Failure Alarm: The siren will sound when the power supply is cut off and silent when the power restore; the warning could be muted by on/off switch.

Working voltage:100 to 250V AC. The LED indicater can show power out / failure alarm and power condition.

Sound level:110dB within 1 meter.

Using Method: place the 9 V battery(not included) in the battery compartment according to the positive(+) and negative(-). Then connect the alarm with AC power and turn on the alarm switch.

What you get 2x power failure alarm

Wireless fridge alarm goes off if the freezer door stays open for 3/15/30/60 seconds, you can easily to set the delay time as your need. It will only alert you when freezer door has been left open for 3s/15s/30s/60s, it will not annoying you while you want the door open

Simple peel and stick installation, easy to install on any freezer/fridge or any door without any tools, come with adhesive tapes

This alarm with 4 modes, it’s not only a refrigerator alarm, but also a door alarm for home security helps deter intruder/thieves effectively by 108dB loud alarm, and can be door open chime help notify you if children/pet or others are coming/ going. You can easy to set appropriate mode as your need

4-in-1 Mode: 1. Time Delay Alarm (sounds “Di-Di-Di” from 0dB to 108dB if door stays open for 3/15/30/60s) 2. General Alarm (alarm stop if door closed); 3. Constant Alarm (constant alarm even door closed); 4. Door Open Chime (sounds “DingDong” once door opens)

Low battery warning. Installation Note: Ensure close the alarm and magnetic strip, the installation distance between them should not exceed 0.78 inch. The 2 parts need be aligned by their alignment arrow

Freezer Door Alarm When Left Open: When the alarm and magnetic sensor are separated by more than 0.6inch(1.5cm), The alarm will sound after the delay time specified by the selected working mode. Freezer door alarm can save you from food loss and spend less for your power supply.

Delay 60S/120S/180/240S: Mode 1: Delay 60 seconds, the alarm sounds every 15 seconds and last 5 seconds each time. Mode 2: Delay 120 seconds, the alarm sounds every 10 seconds and last 10 seconds each time. Mode 3: Delay 180 seconds, the alarm sounds every 5 seconds and last 15 seconds each time. Mode 1: Delay 60 seconds, the alarm sounds every 15 seconds and last 20 seconds each time. Close the door and the alarm stops.

0-120dB Adjustable Volume Level: Set the volume of the freezer alarm to 0dB, the alarm will remind you by flashing small LED light. 2 different ringtones for choice(“didi” chime or alarm sound). Easy to set up and install.

Multifunctional Freezer Alarm: Battery included. After our instrument testing, this freezer door alarm can be used up to 50,000 times; low power consumption. Suitable for various of refrigerators and freezers in home or business shop. You can also use it to remind you to close doors/windows and so on. Supports wide Refrigerator/Freezer door gaps.

Customer Satisfaction: Lifetime after-sale service. Attached the detailed product instruction for your reference. Any problems with the freezer door alarm, please do not hesitant to contact us, and we will provide you with satisfactory service.

Beep tone alarm ringer-- it is widely used in alarms, copiers, telephones and computers.

Buzzer parts-- very small, don’t worry about taking up too much space when storing.

Buzzer accessory-- widely used in computers, printers, photocopiers, alarms and electronic .

Buzzer electronic components-- the buzzer is well-made of , this item is durable and practical use.

Beep tone alarm buzzer-- the buzzer is well- made of , this item is and practical use.

Wireless fridge alarm goes off if the freezer door stays open for 3/15/30/60 seconds, you can easily to set the delay time as your need. It will only alert you when freezer door has been left open for 3s/15s/30s/60s, it will not annoying you while you want the door open

Simple peel and stick installation, easy to install on any freezer/fridge or any door without any tools, come with adhesive tapes

This alarm with 4 modes, it’s not only a refrigerator alarm, but also a door alarm for home security helps deter intruder/thieves effectively by 108dB loud alarm, and can be door open chime help notify you if children/pet or others are coming/ going. You can easy to set appropriate mode as your need

4-in-1 Mode: 1. Time Delay Alarm (sounds “Di-Di-Di” from 0dB to 108dB if door stays open for 3/15/30/60s) 2. General Alarm (alarm stop if door closed); 3. Constant Alarm (constant alarm even door closed); 4. Door Open Chime (sounds “DingDong” once door opens)

Low battery warning. Installation Note: Ensure close the alarm and magnetic strip, the installation distance between them should not exceed 0.78 inch. The 2 parts need be aligned by their alignment arrow