
Fire alarm system · Fire alarm system (EN54)
JTY-GS-T8001Addressable beam smoke detector
Reflective beam smoke detector of the Sanjiang addressable system for large spaces and high ceilings: factories, warehouses, halls.
- Optical path 5–60 m, distance between beams ≤ 14 m
- Transmitter and receiver in a single unit, using a reflector
- Complies with EN54-12, GB 14003
Sanjiang JTY-GS-T8001 beam smoke detector
The Sanjiang JTY-GS-T8001 beam smoke detector is a reflective smoke detection device that uses an infrared beam to monitor large spaces. It is an ideal solution for areas with high ceilings or open spaces, where ordinary smoke detectors are difficult to use effectively.
Key features
- Complies with EN54-12 and GB 14003, ensuring quality and reliability.
- Integrated structure, combining the transmitter and receiver in a single unit for easier installation and alignment.
- Reflective technology, using a reflector to detect smoke and minimize complicated wiring.
- Built-in microprocessor, supporting electronic coding and storing up to 144 historical data records, allowing the environmental condition to be monitored and analyzed.
- Automatic compensation, automatically adjusting to compensate for the effects of dust or slight contamination and maintain stable sensitivity.
- Laser alignment support, with an integrated laser module that helps locate the reflector installation position accurately and quickly.
- Self-diagnostic function, detecting and reporting internal faults to ensure stable operation of the device.
- System connection, using a 4-wire connection, compatible with fire alarm control panels that support electronic coding.
- Electronic circuit board with 3-layer conformal coating against moisture and corrosion, combined with 304 stainless steel contacts, so the device works well even in environments with acid, alkali vapours, high humidity or coastal areas.
Common applications
This device is ideal for large and high spaces where point-type smoke detectors are ineffective or impractical:
- Warehouses and large storage areas
- Shopping centres and supermarkets
- Sports halls and gymnasiums
- Museums and libraries
- Hotels and large lobbies
- Printing plants and garment factories
This device provides effective monitoring of large areas and ensures timely fire warning.
Technical specifications
| Working mode | Four-wire system |
| Working current | Monitoring status<13.5mA, alarm status<14mA |
| Input Voltage | 18V~32V |
| Response threshold | 1.4dB |
| Optical path length | 5~60m |
| Protection range | Distance between beams ≤ 14m, distance between beams and walls ≤7m |
| Weight | Approx. 560g |
| Overall Dimension | 180mm×83mm×73mm |
| Installation height | 0.5~1m from the top of the building |
| Optical path deviation | Maximum direction: ±1º |
| Environment | Indoor, temperature -10℃~+55℃, relative humidity ≤95% (40℃± 2℃ without condensation) |
| Encoding mode | On-site coding by an encoder, address code 1~324 optional. |
| Working instruction | Normal monitoring: The green light is always on, red light is flashing. Transmit fault: green light off, receive fault: red light off. Alarm: green light is always on, red light is always on. |
| Matching host | Fire alarm controller |




