DF400 Toilet Paper Level Sensor
Remote toilet paper and towel level monitoring for public washrooms
DF400 detects remaining paper level by laser ranging and reports status through low-power wireless networks. It helps facility teams reduce empty dispensers, improve public washroom service quality, and plan consumable replenishment from actual field data.
Core Capabilities
Consumable visibility for washroom maintenance
Remote monitoring
Facility teams can monitor paper availability remotely and reduce unnecessary inspection rounds.
Laser ranging
The sensor uses laser distance measurement to estimate remaining paper level in the dispenser.
Low-power operation
Battery operation supports public facility deployments where wiring is not preferred.
LPWAN connectivity
NB-IoT, LoRaWAN, or Sigfox options support different regional network strategies.
Shortage alerting
Low remaining level can be used to trigger refill reminders or maintenance tasks.
Easy installation
Compact structure is suitable for public washroom dispensers, facility rooms, and commercial sites.
Network Diagram
DF400 sends level data to a base station, gateway, or operator network before reaching the cloud server and application layer.
SaaS Workflow
The application can display device status, remaining level records, alarms, and maintenance information for distributed washroom assets.
Data Flow
From paper level detection to refill planning
Measure
DF400 measures distance to estimate remaining paper level.
Transmit
Status is uploaded through NB-IoT, LoRaWAN, or Sigfox.
Alert
Low-level events support shortage alarms and task planning.
Refill
Maintenance teams can replenish paper based on actual field status.
Application Fit
Suitable for public washrooms and high-traffic facilities
DF400 is intended for facility teams that need a reliable way to monitor paper or towel availability across many public washrooms. Confirm dispenser structure, measurement distance, reporting interval, and network coverage before batch deployment.
Technical Specifications