Monitoring Systems
Signal Monitor System
A receiver that takes signals from up to 999 self-powered sensors and shows their numbers and status
The Signal Monitor receives signals from all MPIA self-powered bells and sensors and displays sensor type, group, registration number and status (open/closed). Connected to a PC, it extends to real-time monitoring and text alerts, serving as the hub of safety monitoring in response to the Serious Accidents Punishment Act.
- RegistrationUp to 999 units
- Range extension+approx. 1 km with a repeater
- PC connectionRS-485
- BackupBack up registration data to PC · restore to a new unit
- External outputBeacon light · speaker connection
01How it works
- Sensor · bell operates
A self-powered RF signal is sent, and repeaters extend the range.
- Signal Monitor receives
It displays a 1-digit sensor type, a 1-digit A/B group and a 3-digit registration number, and sounds the beacon light and speaker.
- PC monitoring
The sensor icon on the MAP is highlighted and a pop-up appears.
- Text messaging
Real-time text messages are sent to registered managers.
| F1 · F2 | Register group A · B sensors |
|---|---|
| F3 · F4 | Call tone · call count (1 – 9 times) per sensor |
| F5 | Number display time (1 – 99 s, unlimited) |
| F6 | Delete individual · all sensors |
| F7 | Register status sensors such as temperature · humidity |
| Volume | Call tone volume, 0 – 9 levels |
02Features
Sensors are registered separately in group A (emergency bells · fire detection) and group B (valve · door open/close detection).
Each added repeater extends sensor transmission range by approx. 1 km (open field).
Number registration data is backed up to a PC and transferred as is to a new unit.
Connect an external beacon light and speaker, and set the call tone, count and volume for each sensor.
Up to 10 signals arriving at the same time are stored.
03System configuration
Emergency bellEmergency call
Fire detection sensorFixed-temperature
Valve sensorOpen / Close
Door sensorOpen / Close
RepeaterMWSR2-900 · Optional
Signal MonitorMWSM-700
PC monitoringSensor location · detection history
Text alertsManager's mobile phone
Beacon lightOn-site alarmRanges are based on open field with no obstacles. Each added repeater extends the range by approx. 1 km.
Monitoring screens
04Specifications
Signal Monitor
Model MWSM-700
| Size | W258 × D107 × H34 mm |
|---|---|
| Weight | 497 g |
| Frequency | 920.7 / 447.9 MHz (FSK) |
| Antenna | External antenna × 2 |
| Reception range | approx. 1 km (open field) |
| ID registration | max. 999 |
| Signal storage | Up to 10 overlapping signals |
| Display | FND 5-digit LED |
| External terminals | RS-485, beacon light, speaker, power |
| Power | DC 12 V 1 A adapter |
Repeater
Model MWSR2-900
| Size | W115 × D115 × H30 mm |
|---|---|
| Weight | 167 g |
| Frequency | 920.7 / 447.9 MHz (FSK) |
| Antenna | External antenna × 2 |
| Tx/Rx range | approx. 1 km (open field) |
| Range extension | +approx. 1 km (open field) |
| Display | FND 3-digit, LED (Rx · Tx · Power) |
| Power | DC 12 V 1 A adapter |
Specifications are subject to change without notice for performance improvement.
05Applications
Access and temperature monitoring of unmanned facilities of subways and oil refiners
Emergency bells and fire detection in living quarters and accessible restrooms
Real-time open/close monitoring to prevent valve mis-operation
Industrial safety IoT built without wall work
Installation sites
Company D senior care center
Safety management — self-powered emergency bells · fire detection sensors · relays · Signal Monitor
Unmanned substation at Station A, Seoul
Security · safety management — emergency bell · fire · door · fire extinguisher detection sensors · relays · Signal Monitor
Company D semiconductor manufacturing process
Valve open/close verification — valve detection sensors · relays · Signal Monitor
Applicable platforms
A system that monitors alarm situations from multiple emergency bells together, using wire-free self-powered emergency bells, on-site beacon lights and a control room monitor
Extra-high-voltage Switchgear Power Safety PlatformA disaster monitoring system that monitors the temperature, doors and emergencies of switchgear using self-powered sensors
Distribution Panel Power Safety PlatformA disaster monitoring system that monitors emergency, fire and door information in extra-high-voltage switchgear using self-powered sensors
GIS Substation Power Safety PlatformA system that mounts self-powered sensors on gas valves to show GIS valve open/close status on an LCD panel and sends the status to SCADA to prevent mis-operation
08FAQ
QHow many sensors can be registered?
Up to 999 per Signal Monitor. The Single-window Monitor (MWSM1-300) supports up to 224.
QDoes it connect with our existing monitoring program?
It connects to a PC via RS-485 communication and can be integrated with existing solutions by matching the protocol.
QIf we replace the Signal Monitor, do we have to register everything again?
If you back up the number registration data to a PC and overwrite it onto the new unit, there is no need to register again.
CONTACT MPIA
Signal Monitor System
A receiver that takes signals from up to 999 self-powered sensors and shows their numbers and status