Name: Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB
SKU: 3256807100718850
Availability: InStock
Rating: 4.74 (19 reviews)

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Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB

Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB - Image 2

Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB - Image 3

Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB - Image 4

Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB

Rated 4.74 out of 5 based on 19 customer ratings

(19 customer reviews)

Price range: $8.99 through $55.99

SKU: 3256807100718850 Category: Smart Home & Security

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Description

Specifications：

Material: ABS plastic shell

Host size: 35 x80 x8mm

Magnetic stripe:45 x8.5 x8mm

Battery:1 CR2032 Button battery

Standby time:21 year (Calculated based on opening 10 times a day)

Standby current: <3uA

Working current: <20mA

Working environment temperature:-10~+50℃

Working environment humidity: <90% RH

Storage temperature:-20~+60°℃

Product Feature:

* Professional designed as a door close reminder for the refrigerator, easy to install with 8mm ultra-thin size

* Reed sensor detection, perfect reminder and more peace of mind.

* A CR2032 button battery life is up to 1 year, no need to replace battery frequently.

* Easy to install and easy to use.

Note:

1. The installation distance between the host and the magnetic stripe should be less than

1cm, please select à suitable location for installation.

2. The magnetic stripe must be on the left side of the host, and these 2 parts need be aligned by their alignment arrow.

Use Method：

1.Short press the ONIOFF buttion to turn on. It will make the door opening sounds to prompt you it have been entered the working status. And the LED flashes approximately every 5 seconds，Press and hold the ON/OFF button for about 2 seconds to turn off. It will make a long Be.:sounds.

2.How it triggered: In working status, open the refrigerator door and the LED flashes to indicate that the refrigerator door is opened After about 60 seconds, the door close reminder will make sounds to remind you to close the refrigerator door.

If you close the refrigerator door or tum of the device, it will stop the reminder.

Package Including:

1* Door/window Alarm;

1* Magnetic Stripe Double Sided Sticker User Manual.

Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB

Additional information

Weight	10 g
Dimensions	10 cm
Brand Name	Hollarm
Origin	Mainland China
Hign-concerned Chemical	None
Certification	CE
Model Number	Door Opening Sensor
Smart home platform	none
Color	White
Feature 1	4 in 1 Multi-Function
Feature 2	Easy to install and operate
Feature 3	Practical and convenient
Choice	yes
semi_Choice	yes

19 reviews for Hollarm Freezer Door Alarm 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless Window Door Opening Sensor Loud 90dB

g***f

Rated 4 out of 5

October 12, 2025

However, the volume of "90db strong" seems to me to be plus low

L***r

Rated 4 out of 5

October 5, 2025

The title is misleading. "3/15/30/60 Seconds Adjustable Delay" is not mentioned neither in original paper manual nor on the page, and I still don't know how to make the delay shorter. Minus one star for that. Also I don't like those short LED flashes every ~5s that indicate "I'm alive", they surely reduce the battery life; one could just open the door when in doubt whether the device is alive.

Customer

Rated 4 out of 5

October 4, 2025

Space slightly more than 1 cm to achieve best results. You will want the alarm to go off with every little opening of the fridge door. So space it as far apart as possible. Seems to work ok so far.

B***v

Rated 4 out of 5

October 1, 2025

The product is as described and works very well. Very easy to install. The only reason i gave 4 stars and not 5 is because there is no way to set the length of time before the items starts to bip. You need to wait 60 seconds and i found no way to change it. The description says 3/15/30/60 Seconds Adjustable Delay Refrigerator Alarms Wireless but I found nothing about this in the documentation that came with it