Altronix TEMPOA2 2-Door Occupancy Alert Control System with Enclosure
Overview
The Altronix TEMPOA2 is a self-contained occupancy alert and control unit designed for two-door deployments where you need coordinated panic response, strobe signaling, and auxiliary power delivery in a single enclosure. It accepts 24VAC from a 50VA transformer or 24VDC input — meaning it drops into the same power infrastructure already running most commercial access control and fire-alarm panels without requiring a separate power run. The TEMPOA2 ships fully enclosed at 8.5" x 7.5" x 3.875", compact enough for an electrical room, janitor closet, or above-ceiling installation.
For integrators specifying occupancy alert systems in schools, healthcare facilities, or corporate campuses, the TEMPOA2 addresses the core challenge: consolidating door sensor inputs, emergency triggers, and distributed power outputs into one code-compliant, serviceable unit. Explore the full Altronix power and control catalog for complementary panels and enclosures in this line.
Key Features
- Dual-Mode Input Power (24VAC/24VDC): Accepts a standard 24VAC/50VA transformer or 24VDC source, so the unit slots into existing infrastructure without a transformer upgrade. Most commercial ACS and fire-alarm risers already carry 24VAC — no separate circuit needed in the vast majority of installs.
- 8 Trigger Input Channels: The input matrix covers 2 door sensor inputs, 2 strobe steady inputs, 2 strobe flash inputs, and 2 panic/emergency inputs. That's four distinct trigger classes on two doors, letting you differentiate routine door events from active emergency signals in the same enclosure — critical for zone-specific alert logic in multi-occupancy buildings.
- 30W Auxiliary Power Output (4 Circuits): Delivers 12VDC at 2.5A or 24VDC at 1.25A across 4 auxiliary outputs. That 30W budget is sufficient to drive door strikes, readers, and small strobe devices without a separate power supply — reducing your panel count and field wiring labor on smaller two-door jobs.
- Integrated Battery Backup (2 x 12VDC/4AH): Dual 4AH batteries provide local standby so the unit continues to operate through a power disruption. For life-safety alert systems, continuity during outages is a baseline requirement — this is built in rather than a field add-on.
- LED Status Indicators (AC, DC, Trigger Active): Green LED confirms AC input is live, red LED confirms DC output is active, and a dedicated LED illuminates when a trigger input is active. Troubleshooting at the panel is visual and immediate — no meter required for a first-pass diagnostic.
- Wide Operating Temperature Range (0°C to 49°C / 32°F to 120°F): Handles typical commercial building environments including un-air-conditioned electrical rooms during summer peaks. Storage down to -20°C covers warehouse or cold-climate installs where the panel may be powered down seasonally.
- Compact Enclosure for Flexible Placement: At 4.85 lb and 8.5" x 7.5" x 3.875", the enclosure is wall-mountable in tight spaces. The 13" x 10" x 7" shipping footprint is UPS-shippable, which matters when you're staging multiple units at a central office before field deployment.
- High Humidity Tolerance (85% ±5% RH): Rated for environments up to 85% relative humidity, covering loading docks, covered parking structures, and other non-climate-controlled interior spaces that would rule out standard electronics enclosures.
Integration and Compatibility
The TEMPOA2 is designed to work alongside access control systems and intrusion panels rather than replace them. Its 24VAC/24VDC input compatibility makes it easy to tap into an existing transformer already serving door hardware. The four auxiliary outputs at 12VDC or 24VDC pair with standard door strikes, magnetic locks, card readers, and strobe sounders available across most commercial hardware lines. If you are specifying power supply and distribution for a larger project, the TEMPOA2 handles the two-door alert and auxiliary power tier while your primary panel manages credential verification and access decisions.
For projects requiring structured occupancy monitoring at more than two doors, consider stepping up within the Altronix TEMPO family — higher-capacity variants handle additional door zones without requiring parallel enclosures. See the Altronix product line for scalable options.
Frequently Asked Questions
Q: What input power does the TEMPOA2 require?
A: The TEMPOA2 accepts 24VAC from a 50VA transformer or 24VDC input. It does not include a transformer — you supply one from your existing infrastructure or as a separate component.
Q: How many door sensor inputs does the TEMPOA2 support?
A: The TEMPOA2 supports 2 dedicated door sensor inputs, plus 2 strobe steady, 2 strobe flash, and 2 panic/emergency inputs — 8 trigger inputs total across four signal types.
Q: What are the auxiliary output voltage and current options?
A: The unit provides 4 auxiliary power outputs switchable between 12VDC at 2.5A and 24VDC at 1.25A, for a total output budget of 30W.
Q: Does the TEMPOA2 include battery backup?
A: Yes. The TEMPOA2 includes capacity for 2 x 12VDC/4AH batteries, providing local standby power to maintain alert system operation during AC outages. Verify whether batteries are included in the box or must be ordered separately.
Q: What are the enclosure dimensions and weight?
A: The enclosure measures 8.5" x 7.5" x 3.875" and weighs 4.85 lb (2.2 kg). Shipping weight is 5.45 lb in a 13" x 10" x 7" carton.
Q: What temperature range can the TEMPOA2 operate in?
A: Operating range is 0°C to 49°C (32°F to 120°F). Storage temperature extends from -20°C to 70°C (-4°F to 158°F). The unit also handles relative humidity up to 85% ±5%.
The TEMPOA2 is one of those panels that earns its keep on two-door jobs where you don't want to run separate power supplies for the door hardware and the alert devices. The 30W auxiliary output across four circuits — selectable 12VDC or 24VDC — is enough to drive a pair of strikes, a reader per door, and a strobe sounder without anything else in the closet. I spec this unit when the scope is clearly two doors and the AHJ expects a dedicated occupancy alert path separate from the main access panel.
Technical Highlights:
- 8-Input Trigger Matrix: Four input types (door sensor, strobe steady, strobe flash, panic/emergency) on two doors let you map different alert behaviors to different events — a propped-door condition can drive a strobe while a panic button trips a separate output, all from the same unit.
- Dual Battery Backup (2 x 12VDC/4AH): Built-in battery positions on a life-safety alert system mean you pass the AHJ standby test without adding a separate UPS or backup module. 4AH per cell is adequate for typical 4-hour standby requirements on small door counts.
- Flexible Input Power (24VAC/24VDC): If you're pulling from an existing access control transformer — which is almost always 24VAC on commercial jobs — the TEMPOA2 taps straight in. That's one less circuit to pull from the panel on retrofit work.
Deployment Considerations:
- The 24VAC input requires a 50VA minimum transformer — confirm your existing transformer has headroom before tapping it, especially on buildings where the ACS panel is already close to the transformer's rated load.
- Operating ceiling is 49°C (120°F): adequate for most US interior spaces, but verify ambient temperature in mechanical rooms during peak summer load before mounting there — some utility spaces run hot.
The TEMPOA2 is the right fit for K-12 classroom wing lockdown systems and small healthcare clinic deployments where a two-door perimeter needs panic input, strobe coordination, and local backup power in a single, code-compliant package that a single technician can commission in a half-day.
