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Yunyi has engaged in the research and development of pressure, liquid level, flow, and temperature sensors and transmitters, as well as their solutions. Providing OEM & ODM and custom design services

4G Wireless Liquid Level Transmitter

All-Network Direct Connectivity · Ultra-Long-Range Transmission — The Smart Solution for Industrial Liquid Level Monitoring

YUNYI 4G Wireless Liquid Level Gauge is an intelligent monitoring device integrating high-precision liquid level measurement with 4G wireless communication. Utilizing advanced sensing technology and a 4G CAT1 communication module, it directly uploads liquid level data to the cloud platform via carrier networks, eliminating the need for wiring or gateway conversion. With an IP68 protection rating and an extended battery life of 3-5 years, the device supports full network compatibility across China Mobile, China Unicom, and China Telecom. It delivers a stable and reliable remote monitoring solution for liquid level surveillance in various storage tanks and reservoirs.

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Product Advantages
1. Direct 4G Cloud Connectivity: Eliminates the need for gateway devices by uploading data directly via 4G networks, reducing intermediate steps and enhancing system reliability.
2. Full Network Compatibility: Supports networks from China Mobile, China Unicom, and China Telecom, automatically switching to the strongest signal for uninterrupted communication.
3. Real-Time Data Transmission: Enables data collection at intervals as short as one minute, providing real-time monitoring of liquid level changes and prompt detection of anomalies.
4. Simple Installation & Maintenance: No wiring required. Single-person installation completed in 30 minutes. Supports remote diagnostics and parameter configuration.
5. Extended Battery Life: Low-power design with a 19000mAh lithium battery enabling 3-5 years of continuous operation. Truly maintenance-free.
6. Multi-Platform Integration: Supports MQTT/HTTP/HTTPS protocols for seamless connection to various cloud platforms and monitoring systems.

Core Application Areas
✅ Petrochemical Industry: Liquid level monitoring for crude oil storage tanks, chemical feedstock tanks, and refined oil tanks
✅ Smart Water Management Systems: Water level monitoring for municipal water supply reservoirs, wastewater treatment tanks, and dam reservoirs
✅ Environmental & Energy Sector: Level monitoring for liquefied natural gas (LNG) storage tanks, liquid nitrogen tanks, and biogas tanks
✅ Industrial Production Processes: Level measurement and control for various process storage tanks and intermediate tanks
✅ Agricultural Irrigation Systems: Water level monitoring for large reservoirs and irrigation channels

Technical Specifications

  1. Wide application area of NB-IoT network;
  2. LCD real-time display;
  3.  Antenna form can be selected: external and integrated, for the weak signal can choose the external antenna built-in low-power circuit and 9900mAh large-capacity lithium battery battery power back protection;
  4.  Upper and lower threshold alarm function;
  5.  When the network is automatically corrected, the network is automatically reconnected;
  6.  key operation, on-site configuration instrument;
  7. Web side view and remote configuration instrument, support mobile phone SMS data query;
  8.  With shock-proof, moisture-proof function, adapt to the field environment;
  9.  Different process connection interfaces can be customized according to customer needs;
  10.  OEM can customize different protocol products.

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