We maywhen you click our links.

Full Advertiser Disclosure:

MoneySavingPro believes everyone should be able to cut their bills and choose the best deal based on their individual requirements. While our site doesn't feature every carrier or provider available on the market, we're sure you'll be able to make significant savings from the information we provide and the free independent tools we create.

How can we provide this service for free? Our partners compensate us. This may influence which plans we compare and review and write about, but it does not effect our recommendations or advice, which are based on thousands of hours of research. Our partners cannot pay us to guarantee favorable reviews of their products or services.

Deal of the Month: US Mobile 2GB for $10/mo

Best Alarm SIM Card in 2021

Compare the cheapest prepaid alarm plans

99% coverage4G & 5G speedBring your phoneNo contracts
Big wireless coverage at small prices: switch & save up to $600 a year
Red Pocket Sim Card - Vertical
1GBLTE Data
$10per month
Powered by:
Mint Mobile Sim Card - Vertical
4GBLTE Data
$15*per month
Powered by:
See Deal* $45 for 3 Months Service
Ultra Mobile Sim Card - Vertical
6GBLTE Data
$23*per month
Powered by:
See Deal* 20% Off with code: MSP20
US Mobile Sim Card - Vertical
15GBLTE Data
$26per month
Powered by:
See DealFree Starter Kit with code: MSPUSM
Mint Mobile Sim Card - Vertical
UnltdLTE Data
$30*per month
Powered by:
See Deal* $90 for 3 months Service
Ultra Mobile Sim Card - Vertical
3GBLTE Data
$19*per month
Powered by:
See Deal* 20% Off with code: MSP20
Red Pocket Sim Card - Vertical
5GBLTE Data
$25per month
Powered by:
Mint Mobile Sim Card - Vertical
10GBLTE Data
$20*per month
Powered by:
See Deal* $60 for 3 Months Service
Ultra Mobile Sim Card - Vertical
15GBLTE Data
$31*per month
Powered by:
See Deal* 20% Off with code: MSP20
US Mobile Sim Card - Vertical
2GBLTE Data
$10per month
Powered by:
See DealFree Starter Kit with code: MSPUSM
We currently have no deals for that combination, please change the filters
Loading...

Disclaimer: MoneySavingPro is a free price comparison service but we do not provide service directly. We do our best to keep all the information up to date but there may be some discrepancies between the price you pay.

Big savings, no compromises
Nationwide CoveragePowered by the major networks
Bring your own phoneKeep your existing phone and number
4G LTE data speedsSame fast speeds as the big guys
No contractsFlexible and commitment-free
Customize your planOnly pay for what you use
Buy onlineNo need to visit a store
Best Alarm SIM Card Hero
Same coverage, massive savings!
Stop the Unlimited Data Plan Rip Off!
CarrierNetworkDataPriceAnnual
VerizonVerizon 4G & 5GUnlimited*$80/mo$960/yr
US MobileVerizon 4G & 5G5GB$15/mo$180/yr
*Avg. data usage only 3-5GBSavings$65/moSavings$780/yr
Switching & saving is simple
1
Customize your planDon't pay for data you don't use
2
Bring your own phoneKeep your device & number
3
Order SIM card onlineInsert your new SIM card & activate

The best SIM card for alarm systems in October

If you're looking for an Alarm SIM card for your smart security system we've got you covered.

Using a SIM card in your alarm system works in the same way as a mobile device, it helps it communicate and notify you while you're away from home.

As you'll have to pay monthly for your SIM card, this is where MVNOs can help. These low cost carriers have cheaper plans, but they operate on the same major US networks.

We've compared the best low cost carrier SIM cards for alarm systems below.

Check Carrier Coverage

Best cheap T-Mobile alarm SIM card

Mint Mobile 4GB data only plan* $45 for 3 Months Service

0mins

0texts

4 GB

4G/5G data

$15/mo*

$3.75 per GB

Powered by: T-Mobile


Best cheap Verizon alarm SIM card

US Mobile 4GB data only planFree Starter Kit with code: MSPUSM

0mins

0texts

4 GB

4G/5G data

$15/mo

$3.75 per GB

Powered by: Verizon & T-Mobile


Best cheap AT&T alarm SIM card

0mins

0texts

5 GB

4G/5G data

$25/mo

$5.00 per GB

Powered by: AT&T


Best cheap GSM SIM card for alarm systems

US Mobile 500mb data only planFree Starter Kit with code: MSPUSM

0mins

0texts

0.5 GB

4G/5G data

$5/mo

$10.00 per GB

Powered by: Verizon & T-Mobile


Compare cheap alarm SIM card plans

CarrierNetworkMinutesTextsDataPrice
Red PocketAT&T001GB$10
Mint MobileT-Mobile004GB$15** $45 for 3 Months Service
Ultra MobileT-Mobile006GB$23** 20% Off with code: MSP20
US MobileVerizon & T-Mobile0015GB$26Free Starter Kit with code: MSPUSM
Mint MobileT-Mobile00Unltd$30** $90 for 3 months Service

What is an alarm SIM Card?

A SIM card, which stands for Subscriber Identity Module, is a small chip you insert into a device to connect it to a cellular network. Because a SIM card will work in a similar way for an alarm system as a mobile phone, utilize one in your security system to let it function as a communication device.

You can use a GSM SIM card, which is a part of the GSM network, to join a cellular network by sliding it into the SIM card slot on your alarm system. Given that the GSM SIM card runs on the GSM network, you'll have the choice between a 2G, 3G, and 4G network, where you'll pay a monthly fee to connect your alarm system and portable devices.

SIM card for alarm systems

If you need to connect your alarm system to a cellular network in the same way you would your mobile phone, you'll need to buy a SIM card and pay a monthly fee for this service.

Whether you opt for a prepaid SIM card or one with a plan, your alarm system will be able to function on your cellular network by using this technology. You'll need an alarm system SIM card to get the most out of your alarm kit, so think of these devices like mobile phones when creating a wireless home security system your family can depend on.

Once you activate your alarm system SIM card and insert it into your device, you'll have a security system connected to the internet.


Alarm SIM card FAQs

Who is the best alarm monitoring company?

It depends on what you're looking for from your home alarm system, but ADT, Frontpoint, and Vivint are popular.

What is the best smart alarm system?

Some of the favorites are Yale Sync smart home alarm, Ring alarm security kit, and Abode smart security kit.

How does a GSM alarm system work?

A GSM alarm system is connected to the GSM cellular network, so it works as a wireless home alarm system.


Recap

MVNOs offer cheap SIM card plans for your home alarm system so having peace of mind that your home is safe doesn't have to be another expensive monthly cost.

As the SIM card will run on a cellular network, you can check the best cell coverage in your area with our ZIP code checker.

You can use your wireless security 24/7 or just occasionally, but with plans starting as low as around $5 a month, there's affordable options for all.

Rob Webber
Rob Webber

Rob has 15+ years experience in the US and UK running price comparison sites for cell phone plans, smartphone deals, TV, and internet. He loves thinking outside of the box to build tools that empower consumers to make more informed decisions.

Prepaid SIM card comparison