Y901
Integrated wireless linkage
Integrated Multi-Point Wireless Alarm System
Each node combines a latching trigger, wireless communication and local audible-visual alarm output.
- Y901-G 4G · Y901-L LoRa
Industrial alarm systems · Y901 / Y902 / Y905
Wireless Linkage and Remote Audible-Visual Alarms
Choose an integrated multi-point alarm, a modular trigger-and-alarm network, or a remotely controlled field alarm according to the site's trigger locations, alarm locations, network and backup-power requirements.
- Integrated or modular multi-point linkage
- 4G and LoRa alarm networks
- Wi-Fi and RJ45 remote-alarm options
- 95–110 dB published sounder values
These products provide auxiliary warning and personnel notification. They do not replace a dedicated emergency-stop or life-safety system.
Three products, three alarm relationships
Choose by Trigger and Alarm Location
Y901, Y902 and Y905 are not communication variants of the same hardware. Each organizes the field alarm path differently.
Y902
Separate alarm and trigger modules
Modular Multi-Point Wireless Alarm System
Deploy alarm modules, trigger modules and optional LoRa repeaters separately according to the site layout.
- Y902-G / Y902-L · A / T / R
Y905
Network remote control
Remote Audible-Visual Alarm
Receive a command from a platform, server or control system to switch one local audible-visual alarm on or off.
- Y905-G 4G · Y905-W Wi-Fi · Y905-R RJ45
Alarm path
Trigger, Transmit, Link and Notify
The trigger source and network are model-specific. Confirm response behavior and communication coverage through site testing.
01TriggerBuilt-in button or remote command
02Transmit4G, LoRa, Wi-Fi or Ethernet
03LinkProduct network or remote system
04NotifyBuzzer and flashing red light
Commissioning boundary: actual response time, wireless coverage and audible-visual effect depend on the environment, network, antenna placement and configuration.
Selection comparison
Y901, Y902 and Y905 Side by Side
Start with the required trigger source, physical alarm locations, network and backup-power requirement.
| Selection point | Y901 | Y902 | Y905 |
|---|---|---|---|
| Primary job | Integrated multi-node linkage | Separate trigger and alarm points | Remote control of one local alarm |
| Communication | 4G or LoRa | 4G or LoRa | 4G, Wi-Fi or RJ45 Ethernet |
| Trigger source | Built-in latching button | Built-in latching button on alarm or trigger module | Platform, server or remote command |
| Alarm output | Every node; 95 dB and red light | Y902-A only; sounder up to 110 dB at 1 m | Local 95 dB alarm and red light |
| Power | 9–36 V DC | 24 V DC + 5300 mAh backup battery | 9–36 V DC |
| Start here when | Every point needs a trigger and alarm | Trigger and alarm locations differ or backup is required | A networked system must switch the alarm remotely |
Network separation: Y901 and Y902 form separate product networks and cannot be mixed in one alarm network.
ItemPublished configurationProduct
TriggerBuilt-in latching buttonY901
Alarm95 dB intermittent buzzer + flashing red lightY901
Communication4G platform/server sync or LoRa automatic relayY901
LoRa range5 km standard open area · 10 km optionY901
ResetAfter all trigger states are clearedY901
BoundaryNo standard external DI or platform remote triggerY901
ItemPublished configurationProduct
CommunicationY902-G 4G · Y902-L LoRaY902
External supply24 V DCY902
Backup batteryBuilt-in 5300 mAhY902
Backup operationAt least 6 hoursY902
Continuous alarmAt least 30 minutes during backupY902
Solar option80 W panel + 24 V / 40 Ah NMC batteryY902
Rating boundary: a component sounder's value or ingress rating does not automatically become a rating for the assembled Y902 unit. Use the approved product documents.
ItemPublished configurationProduct
Input9–36 V DCY905
Alarm95 dB intermittent buzzer + flashing red lightY905
Y905-G4GY905
Y905-WWi-FiY905
Y905-RRJ45 EthernetY905
ControlRemote network on/off commandY905
Availability boundary: remote control depends on device power, network connectivity and the connected platform or service.
Applications
Match the Alarm Relationship to the Site
Confirm whether the project needs multi-point linkage, separate trigger and alarm locations, or a remote platform command.
Y901 / Y902
Buildings, plants and public areas
Place trigger and alarm points so one manual action notifies the required locations.
Y901-L / Y902-L
Tunnels and underground passages
Evaluate range, relay path, antenna position and enclosure requirements where cabling is difficult.
Y905
Pump rooms and unattended sites
Let a connected system switch an on-site alarm when a remote event requires attention.
Y901 / Y902 / Y905
Production and temporary work areas
Use audible-visual notification as an auxiliary layer within the approved response procedure.
Specifications
Read the Model-Specific Technical Documents
Use the applicable document to confirm current, dimensions, enclosure, installation, interfaces and ordering details.
Integrated Multi-Point Wireless Alarm System
Y901-G 4G · Y901-L LoRa
Open specificationModular Multi-Point Wireless Alarm System
Y902-G / Y902-L · A / T / R
Open specificationRemote Audible-Visual Alarm
Y905-G 4G · Y905-W Wi-Fi · Y905-R RJ45
Open specificationFAQ
Model Selection, Networking and Backup Power
The trigger source, communication conditions and power requirements define the viable model range.
How do I choose between Y901, Y902 and Y905?
Choose Y901 when each node needs an integrated trigger and alarm. Choose Y902 when trigger and alarm points must be separated or backup operation is required. Choose Y905 when a platform or networked control system must switch one local alarm remotely.
Can Y901 and Y902 devices join the same network?
No. Y901 and Y902 form separate product networks; their nodes cannot be mixed in one alarm network.
What is the open-area range of Y901-L and Y902-L?
The standard open-area distance is 5 km, with a 10 km option available. Actual coverage depends on terrain, obstacles, antenna height and site testing.
What is the difference between the Y902 modules?
Y902-A includes the audible-visual output, Y902-T provides the trigger without a sounder, and Y902-L-R only repeats state within the same LoRa network.
Can Y901 or Y902 use external DI or a platform remote-trigger command?
Not as a standard function. Their published trigger is the built-in latching button. Y905 is designed to receive remote network on/off commands.
Can Y902 continue after external power is lost?
Y902 changes from external 24 V DC to its built-in 5300 mAh battery. The specification states at least six hours of backup operation and at least 30 minutes of continuous alarm output from an alarm module.
Can these products be the only emergency-stop or life-safety circuit?
No. They are auxiliary warning and personnel-notification devices and must not be the only path for emergency stop, life safety or another hard-real-time safety function.
Project review
Share the Trigger Points, Alarm Points and Network Conditions
Provide the distances, node quantities, available networks, power sources, required alarm actions and backup needs. The technical team can review Y901, Y902, Y905 or a project combination.