Product Description
AVTECH Digital Active Power Sensor with Temperature – 10 ft RJ-11 Cable, Plug-and-Play for Room Alert Monitors
This used AVTECH Digital Active Power Sensor (model RMA-APS10-SEN) provides real-time monitoring of both power status and temperature for any AC-powered electrical device . The sensor simply straps onto an existing power cord, allowing you to monitor whether a device is drawing power without cutting cables or unplugging equipment .
The sensor detects active power when the connected device draws more than 100 Watts (up to 1800W) with an accuracy of ±2.5W . When power is detected, the sensor reports “Active” status; when power drops below this threshold, it reports “Inactive” . A built-in green LED provides quick visual confirmation of power status .
Additionally, this sensor includes a digital temperature sensor that measures ambient temperature from -40°F to 185°F (-40°C to 85°C) with ±2°C accuracy .
Condition Note: This unit is untested and sold as-is. This listing is for the sensor only; no Room Alert monitor is included.
Key Specifications
| Specification | Details |
|---|---|
| Manufacturer | AVTECH Software, Inc. |
| Model Number | RMA-APS10-SEN |
| Sensor Type | Digital Active Power with Temperature |
| Cable Length | 10 feet (3 meters) |
| Connector Type | RJ-11 (standard telephone) |
| Active Power Threshold | >100 Watts (detects up to 1800W) |
| Power Accuracy | ±2.5 Watts |
| Temperature Range | -40°F to 185°F (-40°C to 85°C) |
| Temperature Accuracy | ±2°C |
| Temperature Resolution | 0.03125°C |
| Power Supply | Powered by Room Alert monitor (via RJ-11) |
| Sensor Size | ~2.25″ long, under 1″ wide |
| Visual Indicator | Green LED (power ON), Red LED (power OFF) |
| Max Extendible Length | Approximately 100 ft |
| Compatibility | Room Alert 32S, 12S, 3S, 32W/E, 12E, 4E, 3E, 3W |
| New Price (10ft) | ~$95-109 EUR |
| Condition | Used – Untested |
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Non-Invasive Installation | Straps onto existing power cord; no cutting, no unplugging, no electrician needed |
| 10 ft RJ-11 Cable | Allows flexible sensor placement away from monitor |
| Dual Monitoring | Monitors both power status and temperature simultaneously |
| Active Power Detection | Detects when device draws >100W (up to 1800W) with ±2.5W accuracy |
| Visual Status LED | Green (power ON) / Red (power OFF) for quick visual confirmation |
| Temperature Monitoring | -40°F to 185°F range with ±2°C accuracy |
| Plug-and-Play | Instant recognition by Room Alert monitors; no complex setup |
| Ultra-Compact Size | Small footprint (2.25″ x 1″) fits in crowded racks |
Applications
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Server Monitoring: Monitor power status of individual servers in data centers without downtime
-
HVAC Equipment: Ensure heating/cooling systems remain powered
-
Freezers & Refrigeration: Receive instant alerts if freezer loses power
-
Network Equipment: Monitor routers, switches, firewalls, and phone systems
-
Pumps & Sump Pumps: Detect pump failures before water damage occurs
-
UPS & Backup Power: Verify backup systems are functioning
-
Medical/Pharmaceutical: Monitor critical storage freezers and refrigerators


