WiFi Freezer & Fridge Alarm – Wireless thermometer with sensor, audible siren, and app alerts for Android & iOS.

WiFi Freezer & Fridge Alarm – Wireless thermometer with sensor, audible siren, and app alerts for Android & iOS.

Marsoni

M251S

$143.99

Get it in 3 business days with 1 day shipping. Friday, May 29

WiFi Freezer & Fridge Alarm – Wireless thermometer with sensor, audible siren, and app alerts for Android & iOS.PRESERVE COLD INVENTORY with real time notifications of freezer malfunctions from the Level Sense Freezer Sentry. This wifi temperature sensor and humidity monitor sends you an alert before produce and meats can spoil. INTERNET CONNECTED freezer thermometer with alarm sends text and email alerts to you via our exclusive app. Even if our wifi freezer alarm goes offline due to a power outage, our server sends a alert to your phone or email. AUDIBLE 90

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Your WiFi Freezer & Fridge Alarm – Wireless thermometer with sensor, audible siren, and app alerts for Android & iOS. orders ship within 1-2 business days.

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.

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Reviewed in the United States on November 9, 2025

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john A.

Port Orchard, US

★★★★★ 5

Better than most.

Size: (Pack of 1)

Looks good, perfect fit.

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Reviewed in the United States on May 25, 2026

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Willy Bill

Lake Worth, US

★★★★★ 5

Great Filter

Size: (Pack of 1)

This fits fine. Just wish it was a little easier to change.

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Reviewed in the United States on April 26, 2026

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Birmingham, US

★★★★★ 5

More power, slightly lower (8%) MPG.

Size: (Pack of 1)

Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.

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Reviewed in the United States on May 24, 2026

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GregUPerkio

Houston, US

★★★★★ 5

fits my 2013 chevy suburban 5.3 and appears to be high quality

Size: (Pack of 1)

fits my 2013 suburban perfectly. looks to be a well constructed unit.

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Reviewed in the United States on March 29, 2026