APG Web Enabled Display Control Modules RST-5003

APG Web Enabled Display Control Modules RST-5003

The Web Enabled Display Control Modules RST-5003 offers affordable remote tank monitoring by taking your 4-20 mA or modbus RS-485 device and posting the readings to a secure website, sending you an email or a text alarm to your cell phone. Connect up to 10 sensors using the RST-5003 Series as the master for an RS-485 network. Connecting more sensors to the cloud. Connects up to 10 Modbus sensors in a daisy-chain network or a single 4-20 mA sensor to Tank Cloud. RST-5003 series Web Enabled Modbus Network Controllers connect APG Tank Cloud sensors to the cloud, as well as any 4-20mA sensor. You'll need this connection module unless you're using an LOE as your Tank Cloud master.

Inexpensive Communications

Unlike competing methods for remote monitoring, the RST-5003 simply connects to a pre-existing Internet connection via an Ethernet cable - be it landline, radio, cellular, or satellite.

Extremely Easy Set-Up

Simply connect the RST-5003 web enabled control module to any Tank Cloud daisy-chain network, or any 4-20mA sensor, via the input terminal and plug in an Ethernet cable. The module will send sensor data through the Ethernet cable to a local area network or the Internet.

Local and Remote Alarming

In addition to the alarming options with our online data portal, the RST-5003 control module has up to two isolated solid-state relays for local alarms and control.


  • Cost Effective • Ethernet Port (TCP/IP)
  • Connect up to 10 sensors with RS-485 communication
  • Backward Compatible with 4-20 mA devices



Local Alarm2 Isolated Solid-State Relays
Remote AlarmText (sms) Alarms (requires online service)
 Email Notifications (requires online service)


Power Over Ethernet Option48 VDC POE (requires POE injector or switch)
 24 VDC output to power sensor
DC Powered Option24 VDC supply, No POE injector required
Current Draw40 mA at 48 VDC
 130 mA max (Isolated SSRs)


Mounting33 mm Din-Rail


Operating Temperature-40 to +140° F (-40 to 60° C)

Download Data Sheet: Web Enabled Display Control Modules RST-5003

Ref: apgsensors.com