3 1/2 Digit LED, Green

The DP-350 Series is an ultra-compact, highly reliable LED panel meter. This meter is ideal for applications requiring bright easy-to-read digits in a small package. The flexible window-mount packaging with optional bezel enables embedding within OEM equipment or traditional panel mounting. The simplicity of function, overvoltage protection, and low power consumption all contribute to the high reliability of this device.

Three input voltage ranges are offered: ±200mV, ±2VDC and ±20VDC. A 4 to 20mA current input adapter (DP-370) is also offered. Automatic polarity, overrange indication adjustable decimal point, and display HOLD are standard features. The DP-350 Series employs a dual slope integrating A/D converter, and operates from an internal 100mV reference via a precision DC-to-DC converter. Typical accuracy is ±0.1%.


  • Large (0.562) 3 1/2-digit LED display
  • Choice of red or green LED
  • Low power consumption (5VDC, 200mA)
  • Differential input, 3 voltage ranges
  • 0.1% typical accuracy
  • User-selectable decimal point
  • Hold-display function
  • Auto zero
  • Quantity discounts


  • Portable/mobile equipment
  • Industrial measuring products
  • Lab instrumentation
  • Process monitoring


DP-350 -352 -354 Wiring


Height 0.81" (20.6 mm)
Width 2.05" (52.1 mm)
Top Left Diameter 0.22" (5.6 mm)
Top Right Diameter 0.11" (2.8 mm)
Bottom Left Diameter 0.11" (2.8 mm)
Bottom Right Diameter 0.22" (5.6 mm)
Hole Separation Horizontal 2.31" (58.7 mm)
Hole Separation Vertical 0.90" (22.9 mm)


Polarity IndicationAutomatic "-" for neg input
Storage Temperature-10 to 60u00baC
Supply Voltage+5VDC u00b15%
Input Offset AdjustmentAuto zero
Input Bias Current1pA typical, 100pA max
Package StyleWindow mount
ConnectorC-10 (10-pin) optional
Order InfoMinature DPM green LED u00b12V
Control InputsDecimal point select, hold, span adjust
Other Features/OptionsDisplay hold function
Input Impedance>100M? (u00b1200mV), 1M? (other ranges)
Digit Height.56in (14.2mm)
Accuracyu00b1(0.1% + 2 counts) typu00b1(0.2% + 2 counts) max
Overrange Indication1---for positive, -1---for negative
Digits3u00bd(u00b11999 count)
ConfigurationBipolar, differential
Temperature Drift, typical100 ppm/u00baC
Common Mode Rejection>86dB
Operating Temperature0 to 50u00baC
Decimal Point3 position selectable
Weight0.7oz (20g)
Common Mode Rangeu00b11VDC
BezelOptional, see diagram
Dimensions2.52 x 1.10 x .73
Overrange Protectionu00b1350VDC (u00b1100 VDC for 200mV range)
Relative Humidity0 to 95% non-condensing
Panel Cutout2.05 x .81
Full-Scale Inputu00b1200mV, u00b12V, u00b120V
Type7-segment LED (red or green)
Supply Current, typical200mA
Sampling Rate3.3 readings/s
Warmup, typical10 min

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