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Burglar Alarm Systems for Jewelers: Understanding Line Supervision and Security


Burglar Alarm Systems for Jewelers: Understanding Line Supervision and Security

Peace of mind may be hard to come by when your business is closed for the night.

That’s where burglar alarms for jewelry businesses come into play — but not all are created equal.

Underwriter’s Laboratories (UL), an authority in the security industry, certifies alarms and may apply two terms related to how they function.

In these systems, the terms line supervision and line security may often be confused with one another.

Here’s what they mean and why they are important for jewelers to have:

Line Supervision

This is a capability of alarm systems that provides a two-way communication exchange between a protected business and an alarm monitoring center, sometimes referred to as the “check-in”.

How often the check-ins at the business occur depends on what is being protected. For instance, a jewelry operation closed for the night may require a check-in once every 200 seconds.

Line Security

When added to a burglar alarm system, this provides extra assurance that advertent and inadvertent attempts to compromise the alarm communication channel between a protected property and its monitoring station won’t go undetected.

Having a reliable burglar alarm system for your jewelry business means that line supervision and line security must be an operational component for complete protection.

Want to learn more?

Take an in-depth look at line supervision and security by reading UL’s latest burglar alarm system article.

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About Jewelers Mutual Group

Jewelers Mutual was founded in 1913 by a group of Wisconsin jewelers to meet their unique insurance needs. Later, consumers began putting their trust in Jewelers Mutual to protect their jewelry and the special memories each piece holds. Today, Jewelers Mutual continues to support and move the industry forward by listening to jewelers and consumers and offering products and services to meet their evolving needs. Beyond insurance, Jewelers Mutual’s powerful suite of innovative solutions and digital technology offerings help jewelers strengthen and grow their businesses, mitigate risk, and bring them closer to their customers. The Group insurers’ strong financial position is reflected in their 37 consecutive “A+ Superior” ratings from AM Best Company, as of November 2023. Policyholders of the Group insurers are members of Jewelers Mutual Holding Company. Jewelers Mutual is headquartered in Neenah, Wisconsin, with other Group offices in Dallas, Texas and Miami, Florida. To learn more, visit