| All returns accepted | ReturnsNotAccepted |
|---|---|
| Brand | System Sensor |
| Type | Smoke Detectors |
| Model | System Sensor 2251B |
| MPN | 2251B |
Check the listing for details. SYSTEM SENSOR 2251B PHTOELECTRIC SMOKE DETECTOR. Condition: Used. Listed at 70.00 USD. Transmits an analog representation of smoke density over a communication line to a control panel. Additionally, rotary-decade switches are provided for setting the sensor’s address.Voltage Range: 15 to 32 VDC Standby Current: 300µA @ 24 VDC Humidity Range: 10% to 93% Temperature Range: 32°F to 120°F All wiring must be installed in compliance with the National Electrical Code UL Listed & ULC Listed (WHITE)
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