1PCS TOMZN 2 IN 1 Digital Meter Voltage Current Display High Precision Small Size AC40-300V 0.01A-99.9A 2 Times/sec LED With CT

D91-2042 Voltage and current measurement

General

The D91-2042 is a compact digital meter that simultaneously displays AC voltage and current on a single unit. It features a built‑in 100A precision current transformer, requiring no external power supply or additional CT. Voltage is shown on a 3‑digit red LED display, while current is shown on a 3‑digit green LED display with auto‑ranging (0.01A resolution below 10.0A, 0.1A resolution above 10.0A). With 1% ±2 digits accuracy, it measures AC voltage from 40‑300V and current from 0.00‑99.9A. Ideal for panel‑mount power monitoring in industrial, commercial, and residential applications.

Product parameters

Product Model: D91-2042
Product Type: Digital AC voltage and current dual display meter
Display Type (Voltage): 3‑digit red LED (0.32″)
Display Type (Current): 3‑digit green LED (0.32″)
Accuracy: 1% ±2 digits
Voltage Measurement Range: AC 40‑300V
Current Measurement Range: AC 0.00‑99.9A
Current Resolution (＜10.0A): 0.01A
Current Resolution (≥10.0A): 0.1A
Measurement Speed: Approx. 2 times/second
Power Supply: Self‑powered (no external supply required)
Current Transformer: Built‑in 100A precision CT (included)
CT Connection: Secondary terminals (white) into white socket on meter rear
Voltage Connection: Rear black terminals
Dimensions: 45 × 45 × 38 mm
Application: Panel‑mount voltage and current monitoring for industrial, commercial, and residential systems