Alarm Lock PG21MS Narrow Stile Door Alarm, Surface Mount, Aluminum
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Stops door propping and unauthorized access with a loud 95 dB siren to deter intruders and reduce security breaches
- Surface-mount, narrow-stile design installs quickly on metal frames to minimize downtime and retrofit costs
- Battery-powered 9V operation with low-battery alert and optional external power for continuous protection
- Selectable arming modes and programmable entry delays give flexible control for schools, retail, and healthcare settings
- Tamper-resistant construction plus LED indicator and optional strobe provide clear visual status for monitoring teams
- Simple, self-contained unit reduces integration complexity with existing security and surveillance programs
Quick Specifications
- Product Model
- PG21MS
- Brand Name
- Napco Security Technologies
- Product Line
- PG21
- Product Name
- PG21 MS Door Alarm
Explore the details
Product information
PG21MS
Overview
Prevent unauthorized entry and eliminate risky door propping with the Alarm Lock PG21MS Narrow Stile Door Alarm. Designed for institutional and commercial environments, this surface-mount door alarm provides an immediate audible deterrent (95 dB) and visible status via an LED — ideal for schools, retail, healthcare and theater applications where real-time monitoring and fast response matter. The PG21MS is battery-powered with a long-life 9V battery and low-battery alert, while also supporting optional external power for continuous operation. Two selectable arming modes, programmable entry delays (including 15 sec and 3 min options) and tamper-resistant housing let facility managers tailor protection to their security policies without complex system changes. Compact, narrow-stile compatibility and straightforward surface mounting make installation fast and cost-effective for retrofit projects. Integrate this Alarm Lock door alarm into your broader security and surveillance strategy to improve perimeter control and reduce insider risk. Strengthen your access monitoring — order the PG21MS to upgrade door security across your facilities today.
Features
- Stops door propping and unauthorized access with a loud 95 dB siren to deter intruders and reduce security breaches
- Surface-mount, narrow-stile design installs quickly on metal frames to minimize downtime and retrofit costs
- Battery-powered 9V operation with low-battery alert and optional external power for continuous protection
- Selectable arming modes and programmable entry delays give flexible control for schools, retail, and healthcare settings
- Tamper-resistant construction plus LED indicator and optional strobe provide clear visual status for monitoring teams
- Simple, self-contained unit reduces integration complexity with existing security and surveillance programs
| General Information | |
|---|---|
| Brand Name | Napco Security Technologies |
| Manufacturer | Napco Security Technologies |
| Product Line | PG21 |
| Product Name | PG21 MS Door Alarm |
| Product Type | Door Alarm |
| Product Series | PG21 MS |
| Application/Usage | Door, Emergency, Fire, Floor, Institutional, Monitor, Nursing Home, Restaurant, Retail Shop, School, Security, Stairs, Theater |
| Country of Origin | DO |
| Manufacturer Part Number | PG21MS |
| Technical Information | |
| Alarm Type | Audible |
| Light Color | Red |
| Environmental Conditions | |
| Sound Emission | 95dB |
| Physical Characteristics | |
| Depth | 2.70" |
| Width | 2.50" |
| Height | 9.00" |
| Durability | Tamper Resistant |
| Power Description | |
| Power Source | Battery |
| Input Voltage | 9V |
| Product Information | |
| Bulb/Tube Type | LED |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- PG21MS-1
- Manufacturer part:
- PG21MS
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsAlarm Lock PG21MS Narrow Stile Door Alarm, Surface Mount, Aluminum
PG21MS