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.

LOREX LR-2100-R12 / LR-2100-R24 Optical Smoke Detector with Relay Output

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

LOREX LR-2100-R12-R24 Smoke Detector with Relay Outpu Wiring Diagram

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