Model# DU-40

AC Voltage Digital Panel Meter

Shipping / Availability: Discontinued – Limited Availability

The DU40 & DU40-AC are low cost AC voltage meters. The DU40 is designed to measure power line voltage up to 700.0Vac with 0.1Vac resolution.


Accuracy: ±(0.05% of reading + 3 digits)
Temp. Coefficient: 100ppm/°C (Typical)
Conversion Rate: 3 readings per second
Display:   0.56″ high efficiency LED display HOLD and TEST function
Decimals:  User programmable to four positions.
Overload Indication: When input exceeds the full scale on any range being used, all digits flash at the A/D conversion rate
Power Requirements:
– 100/120Vac
– 200/240Vac
– 50/60Hz
– Approx. 2.5 Watts
Warm Up Time: One minute to specified accuracy
Operating Temp: -10°C to +50°C
Input Configuration: Inputs resistively isolated to 1400V from internal ground of meter by 1.94 M O so that phase to phase measurements can be safely made.
Input Range: 700.0Vac, 50-60Hz
Input Impedance: 4.0MΩ
Reads: Up to 700V F.S.

  • 4 digit red LED factory calibrated for 700Vac