LOREX LR-2100-R12 / LR-2100-R24 Optical Smoke Detector with Relay Output
Overview
The LOREX LR-2100 series is a 4-wire photoelectric (optical) smoke detector designed to provide dependable early warning for both fast-flaming fires and slow smoldering scenarios. Its specialized smoke chamber increases sensitivity to smoke particles while maintaining stable and consistent detection performance over time.
The LR-2100-R12 (12V DC) and LR-2100-R24 (24V DC) versions include a built-in sounder and an integrated alarm relay output. The relay can be configured as NO or NC via jumper, enabling easy integration with external devices such as alarm panels, warning beacons, or shutdown logic.
Key Features
- 4-wire operation: suitable for conventional installations and alarm control logic.
- Built-in alarm relay: configurable NO/NC contact (jumper selection).
- Built-in sounder: local audible warning for immediate response.
- Two voltage options: LR-2100-R12 (12VDC) and LR-2100-R24 (24VDC).
- Optical sensing: responsive to both smoldering and fast combustion smoke.
- Status indication: clear LED indication for alarm/operation.
Applications
With its proven optical detection performance and integrated relay output, the LR-2100 series is ideal for:
- Residential buildings (apartments, villas)
- Offices and commercial spaces
- Hotels and hospitality areas
- Retail stores and shopping areas
- Warehouses and storage facilities
- Manufacturing and light industry environments
- Educational and healthcare facilities
Technical Specification
Price: On Request | Availability: In Stock
| Parameter | LR-2100-R12 | LR-2100-R24 |
| Order Code | LR-2100-R12 | LR-2100-R24 |
| Supply Voltage | 12V DC | 24V DC |
| Alarm Current | 20 mA | 10 mA |
| Relay Output | NO or NC (Jumper Selection) | |
| Internal Sounder | Yes | |
| Sounder Level | 85 dB @ 3m | |
| LED Indicator | Yes | |
| Mounting Type | Ceiling Mount (Base Including) | |
| Relay Contact Rating | 1A @ 24V | |
| Color | White | |
| Case | ABS Plastic | |
| Working Temperature | 0°C ~ 40°C | |
| Dimensions | 13 cm x 3.7 cm | |
| Humidity | 10% ~ 90% RH | |
For integration projects (relay logic, sounder usage, wiring guidance), you can reach our team via the Sales Contact page.
Wiring Diagram
LOREX LR-2100-R12 / LR-2100-R24 Wiring Diagram
LOREX LR-2100-R12-R24 Smoke Detector with Relay Output Wiring Diagram