• LPD Current Loop Display
  • An LPD is shown, and text appears saying "4-20 mA sensor current loop." It is then shown next to a tank, tracking the number of gallons as they go down.
  • An LPD measures liquid on a walkway far away from a tank
  • LPD Display for Analog Signals
  • Current Loop Display for Analog Signals
  • LPD Current Loop Display for Analog Signals

Current Loop Display


Simple Scalable Display for Analog Signals

Local display designed to be inserted into a 4-20 mA sensor current loop.


Loop Powered
The LPD is all about loop-powered circuits, perfect for installing just outside hazardous locations and displaying the readings from your intrinsic safety devices. The LPD has a 4-20 mA input and output.

Simplified User Interface
With just three buttons, and a large, two-line LCD display, using the LPD is straightforward and uncomplicated.

Optional Modbus RTU Programming
Alternatively, you can connect to the LPD from a PC running APG Modbus software via an RST programming module for quick and easy setup.

Datasheets & Downloads


RS-485 (Modbus RTU)
2400, 9600, 19200, 38400 baud rates
Display Readings
Volume, Level, Distance, Pressure
Display Update Rate
500 mSec


Max Voltage Drop
4.7 VDC @ 20 mA, 4.4 VDC @ 20 mA
powered from the 4-20 mA loop


Plastic Housing (3.25 in.)
Aluminum Housing (3 or 4 in.)


Output Options
4-20 mA Loop Powered Operation
4-20 mA


Programmable Features
Units of Measure, Auto-Off, Averaging, Endpoints
3-button Keypad


5 Digit LCD, 0.4 in. Digits, 6 Character Description Field
Plastic Housing
Injection Molded Case
IP67 Protection Rating
Aluminum Housing
Aluminum Pressure Die Casting, 0.5% Mg
Chemically Resistant Paint
IP68 Protection Rating


Storage Temperature
-40° F - 160° F (-40° - 71° C)
Operating Temperature
0° F - 160° F (-18° - 71° C)