Description

D91‑2080 Voltage and frequency measurement

General

The D91‑2080 is a compact digital meter that simultaneously displays AC voltage and power frequency on a single unit. It features a self‑powered design — no external power supply is needed, as it operates directly from the measurement input. Voltage is shown on a 3‑digit red LED display, while frequency is shown on a 3‑digit green LED display. With 1% ±2 digits accuracy, it measures AC voltage from 40.0‑300V and frequency from 45.0‑65.0Hz. Ideal for panel mounting in industrial, commercial, and residential power monitoring applications.

Product parameters

Product Model: D91‑2080
Product Type: Digital AC voltage and frequency dual display meter
Display Type (Voltage): 3‑digit red LED
Display Type (Frequency): 3‑digit green LED
Accuracy: 1% ±2 digits
Voltage Measurement Range: AC 40.0‑300V
Frequency Measurement Range: 45.0‑65.0Hz
Measurement Speed: Approx. 2 times/second
Power Supply: Self‑powered (no external supply required)
Input Connection: Voltage measurement leads to rear black terminals
Dimensions: 45 × 45 × 38 mm
Application: Panel‑mount voltage and frequency monitoring for industrial, commercial, and residential systems