Alarm.com ADC-SEM340-VT-TL Alarm Communicator
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
- Provides reliable dual-path LTE/IP communication to keep alarms connected even if one path fails
- Integrates seamlessly with Honeywell/Ademco VISTA panels to enable remote monitoring and faster alarm response
- Cellular 4G LTE connectivity reduces dependence on landlines and ensures continuous security surveillance
- Compact, low-profile white module installs inside the control cabinet for a professional, discreet setup
- UL-listed and environmentally friendly design supports code compliance and long-term system stability
Quick Specifications
- Product Model
- ADC-SEM340-VT-TL
- Brand Name
- Alarm.com
- Product Name
- System Enhancement Module (SEM) for VISTA w/ Telus LTE and IP Communication
- Product Type
- Dual Path Alarm Communicator
Explore the details
Product information
ADC-SEM340-VT-TL
Overview
Maximize uptime and simplify monitoring with the Alarm.com ADC-SEM340-VT-TL System Enhancement Module (alarm communicator) — a dual-path LTE/IP solution designed for commercial and residential security installations. This Alarm.com communicator adds robust 4G LTE cellular backup combined with IP connectivity to maintain continuous alarm reporting and remote surveillance, so monitoring centers and on-site personnel receive events without delay. The SEM module is purpose-built to integrate with Honeywell/Ademco VISTA panels (10P, 15P, 20P, 21IP) — note specific panel revision requirements for full broadband support — and disables competing communicators to provide a single, reliable path for signal transmission. At just 4.35" wide and finished in discreet white, it mounts inside the control enclosure for a clean installation that preserves cabinet space. Ideal for installers and integrators who need dependable monitoring, improved connectivity, and simplified compliance, this Alarm.com alarm communicator supports faster alarm verification, remote system access, and reduced false alarm risk. Upgrade your security and surveillance infrastructure — order the ADC-SEM340-VT-TL or contact our sales team to plan integration with your VISTA panel.
Features
- Provides reliable dual-path LTE/IP communication to keep alarms connected even if one path fails
- Integrates seamlessly with Honeywell/Ademco VISTA panels to enable remote monitoring and faster alarm response
- Cellular 4G LTE connectivity reduces dependence on landlines and ensures continuous security surveillance
- Compact, low-profile white module installs inside the control cabinet for a professional, discreet setup
- UL-listed and environmentally friendly design supports code compliance and long-term system stability
| General Information | |
|---|---|
| Brand Name | Alarm.com |
| Manufacturer | Alarm.com |
| Product Name | System Enhancement Module (SEM) for VISTA w/ Telus LTE and IP Communication |
| Product Type | Dual Path Alarm Communicator |
| Product Model | ADC-SEM340-VT-TL |
| Country of Origin | US |
| Manufacturer Part Number | ADC-SEM340-VT-TL |
| Physical Characteristics | |
| Color | White |
| Depth | 1.65" |
| Width | 4.35" |
| Miscellaneous | |
| Environmentally Friendly | Yes |
| Environmental Certification | UL |
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Plan your purchase
Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- ADC-SEM340-VT-TL
- Manufacturer part:
- ADC-SEM340-VT-TL
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.com ADC-SEM340-VT-TL Alarm Communicator
ADC-SEM340-VT-TL