The AT-B01 Reflective Linear Beam Smoke Detector uses an infrared transmitter and receiver housed in a single unit and a reflector mounted opposite the detector. When smoke enters the beam path and reduces the received signal, the detector analyzes the change and generates a fire alarm with LED indication and internal buzzer.
With up to 100 m coverage, one AT-B01 can protect areas that would otherwise require many point detectors. Eight selectable sensitivity levels and automatic drift compensation maintain stable performance over time, even in dusty environments. The built-in laser alignment tool and clear status LEDs greatly simplify installation, commissioning and maintenance.
Reflective linear beam smoke detector for large open areas
Adjustable monitoring distance from 5 m to 100 m
Integrated transmitter and receiver; only a reflector is required on the opposite wall
8 selectable sensitivity levels to match different site conditions
Automatic drift compensation for dust and environmental changes
Red (alarm), yellow (fault) and green (normal) LED indicators plus internal buzzer
Separate fire and fault relay outputs (NO/NC configurable)
RS485 communication terminal available for system integration (optional/adaptable)
Wide operating temperature and humidity range in a compact, lightweight housing
Technical Specifications (Summary)（AT-B01）
| Item | Specification |
|---|---|
| Model | AT-B01 Reflective Linear Beam Smoke Detector |
| Monitoring distance | 5 m ~ 100 m |
| Working voltage | DC 24 V, voltage range DC 18 ~ 30 V |
| Working current | Monitoring: 35 ± 5 mA; Alarm: 60 ± 5 mA |
| Status indicator | Red: fire alarm / patrol status; Yellow: fault status; Green: normal status |
| Operating temperature & humidity | -10°C ~ +55°C; RH 0% ~ 95% (non-condensing) |
| Sensitivity level | Built-in 8 levels of sensitivity |
| Fire alarm status | In fire alarm: buzzer sounds continuously (about 3 minutes), relay operates, red LED indicates alarm |
| Terminal definition | DC24V power terminal (non-polarized); Fire alarm relay output (NO/NC selectable); Fault relay output (NO/NC selectable); RS485 communication terminal (adaptable) |
| Weight | Approx. 0.5 kg (without reflector) |
High-bay warehouses and logistics centres
Industrial workshops and production halls
Shopping malls, supermarkets and atriums
Museums, libraries and archive rooms
Exhibition centres, airports and railway stations
Large mechanical rooms, substations and power plants
