- Cellular Alarms
- Internet Alarms
Phone Line Alarms
- 300 (Phone Line)
- 408 (Phone Line)
- 410 (Phone Line)
- 412 (Phone Line & Cellular)
- More Phone Line Alarms
- 3xx Alarm Accessories
- 4xx Alarm Accessories
- STS-3xx Accessories
- STS-4xx Accessories
- STS-5xx Accessories
- Accessories for Discontinued Alarms
- Wired Accessories
- Decals & Signs
- Cellular & Internet Adapters
- Universal Wireless Sensor/Siren
- Car Alarms, Locks, & Starters
- Car Accessories
- Wires & Cables
- ★ Weekly Deals ★
Shop Online & Save!
Discounts apply to orders placed on our website. Sorry, they cannot be applied to phone orders.
Orders Over $500, Receive
Alarm purchases over $500 receive a $16.95 discount for FREE shipping! Use Coupon Code: ship500 during checkout.
New Customer Offers!
Offers are available to new customers obtaining service for the first time.
Professional Alarm Monitoring - 1-Year FREE
New alarm monitoring customers may purchase any alarm system and we will provide you a coupon code to receive a FREE year of professional alarm monitoring. Only pay a one-time $29.95 activation fee. Free service utilizes your existing internet (VOIP) or landline phone service. If purchasing a cellular alarm and cellular service is required, add T-Mobile service for only $3 +tax / month. Offer is only valid for new monitoring customers; Existing accounts or accounts closed within the last 6 months do not qualify for this offer.
Professional Alarm Monitoring - Only $4.95mo. or $8.95/mo.
Have your own alarm equipment? No problem. New customers can enjoy professional alarm monitoring for as-low-as $4.95/mo. for the first year or monitoring as-low-as $8.95/mo. for the first two years. Unless canceled, after the promotional period ends service resumes as-low-as $11.99/mo. or $13.95/mo. depending on the plan selected. *No Commitment Contracts!* Cancel Anytime * **Prices offered apply to alarms communicating through regular phone lines. If cellular service is required, a $3+tax/month cellular connection fee is required through T-Mobile. Additional equipment may be required.**
FREE Android Tablet!
Sign-up for our smart phone cloud service for $5/month and we'll send you a FREE 7" Android Tablet! A 1-year service agreement is required. After 1-year, cancel service at anytime with no additional commitment contracts and the tablet is yours to keep.
Discounts may be applied to orders placed on our website or by phone.
First Responder Discount -
5% OFF Alarm Kits & 15% OFF Accessories!
All police, fire, and military personnel qualify for a 5% off first responders discount. We also offer an additional 15% off our alarm accessories. Please send us an email from your police, fire, or military email address. The @domain-name email address should end in .gov or be the domain name of your police or fire department. We will not accept emails from non-work email accounts such as gmail, yahoo, and hotmail. If you do not have access to a work email account, please contact us. Our email address is email@example.com. This discount may be used for you and your immediate family. So that we can continue to offer this discount, please respect the fact that we do not offer this discount to friends or extended family. (Please don't ruin a good thing.)
Although rare, Shield Tech Security has the sole right to reject or refuse any or all of these promotional offers, with or without reason, at anytime.