Founded in 2002, SentriLock makes electronic lockboxes and integrated access-management tools for real estate professionals, combining property access with showing and client-management software. Based in West Chester, Ohio, the company is 100% owned by the National Association of REALTORS® and its system is used by more than 500,000 agents, with over 1.39 million lockboxes in use. SentriLock also holds ISO 9001 certification and supports its products with a U.S.-based customer service team.
ISO 9001
LPCB – Loss Prevention Certification Board
FCC – Federal Communications Commission
Compliance program
IC – Industry Canada
Compliance program
CE – Conformité Européenne
Compliance program
RoHS – Restriction of Hazardous Substances
Compliance program
RCM – Regulatory Compliance Mark
Compliance program
NOM – Norma Oficial Mexicana
Compliance program
IFETEL – Instituto Federal de Telecomunicaciones
Compliance program
ASEP – Autoridad Nacional de los Servicios Públicos
Compliance program
UL – Underwriter’s Laboratories
Directive 2014/53/EU Declaration of Conformity
Compliance program
FCC
Quality certification
CE
Quality certification
RCM
Quality certification
NOM
Quality certification
UL
Quality certification
RED
Quality certification
Roper Lock Box, LLCSince 1975, Roper Lock Box has manufactured lock boxes and safety products from Hudson, Ohio, starting with a single combination box for real estate agents and growing into a supplier for emergency services and property-preservation work. Its distinctive Critical Entry Municipality Program now serves more than 100 emergency service departments across over 15 states, helping responders enter participating homes without forced entry. Roper’s Small Four Number Lock Box has sold more than 630,000 units, while its Guardian platform lets customers change combination lids without replacing the vault.HUDSON, OH
Sentinel SystemsFounded in 1977, Sentinel Systems builds access-control hardware and management software specifically for self-storage operators. Its operator-focused platform brings together facility management, connected security equipment and self-storage websites, with a team that includes former storage operators, engineers and support technicians. Sentinel has served the industry for more than four decades and continues to support both independent owners and multi-facility portfolios.TOLEDO, OH
Alarm Lock Systems, a division of NAPCO Security Technologies, IncFor more than 40 years, Alarm Lock Systems has made electronic access and egress locks for commercial doors, with its Trilogy line serving as the brand’s signature product for locksmiths and security professionals. A division of NAPCO Security Technologies, Alarm Lock engineers and manufactures its products in New York and the Caribbean, and now operates within NAPCO Access alongside Marks USA and Napco Access Pro to provide integrated locking and access-control solutions.AMITYVILLE, NY
Midwest Security Products, IncFounded in 1985 to serve vending and coin-operated equipment makers, Sylvania-based Midwest Security Products designs and supplies mechanical, electronic, and intelligent locking solutions for OEM and commercial security applications. Its in-house engineering and manufacturing teams develop custom locks with integrated high-security cylinders, while the company’s full-service lock and key department produces more than 2 million made-to-order locks and keys each year. Midwest also supports deployments nationwide with installation, system management, training, and break-fix service.SYLVANIA, OH