Product Introduction

The TOVM48S Multi-Function Digital Meter is a compact and versatile panel meter designed for comprehensive AC power monitoring. It measures key electrical parameters including voltage, current, frequency, power factor, active power, and total energy consumption, all displayed on a clear LED display. The meter supports two voltage input ranges—AC 50–300V for single-phase applications or AC 250–450V for three-phase applications—allowing users to select the appropriate model based on their system requirements. With a current measurement range of 0–99.99A, active power up to 30,000W, and energy accumulation up to 99,999 kWh, this meter is suitable for a wide variety of monitoring tasks. It features automatic data saving during power loss and includes a reset button for clearing energy readings. Housed in a compact 49×47×52mm enclosure with a Φ22mm mounting hole, the TOVM48S is ideal for panel mounting in industrial, commercial, and residential power distribution systems.

Product Data Sheet

Model: TOVM48S

Type: Multi-function Digital Meter

Display: LED

Measured Parameters: Voltage, Current, Frequency, Power Factor, Active Power, Total Energy

Accuracy: 1% ±2 digits

Voltage Range (Single-phase): AC 50.0–300.0V

Voltage Range (Three-phase): AC 250.0–450.0V

Current Range: AC 0.0–99.99A (resolution: 0.01A below 100A; displays 100.0A above 100A)

Frequency Range: 45.00–65.00Hz

Power Factor Range: 0.00–1.00 PF

Active Power Range: 0–30,000W (resolution: 0.1W for 0–9999.9W; 1W for ≥10,000W)

Electric Energy Range: 0–99,999 kWh (resolution: 0.01kWh for 0–999.99kWh; 0.1kWh for 1000.0–9999.9kWh)

Update Speed: 2 times per second

Dimensions: 49 × 47 × 52 mm

Mounting Hole Diameter: Φ22 mm

Data Retention: Automatic save on power loss; resumes accumulation on next power-on

Energy Reset: Bottom-right reset button (press with needle for 5 seconds)

Application: Panel mount for single-phase or three-phase AC power monitoring