---
product_id: 325409208
title: "Digital Single Phase Energy Meter Tester Electricity Usage Monitor AC 110V 40V~300V 100A Ampermeter Power Voltmeter Ammeter Voltage Amps Watt Kwh Frequency Power Factor Meter Multimeter (Built-in CT)"
brand: "tkxec"
price: "$151"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac
store_origin: NZ
region: New Zealand
---

# AC 40-300V 0-450000W 0-100A Digital Single Phase Energy Meter Tester Electricity Usage Monitor AC 110V 40V~300V 100A Ampermeter Power Voltmeter Ammeter Voltage Amps Watt Kwh Frequency Power Factor Meter Multimeter (Built-in CT)

**Brand:** tkxec
**Price:** $151
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Up Your Savings!

## Quick Answers

- **What is this?** Digital Single Phase Energy Meter Tester Electricity Usage Monitor AC 110V 40V~300V 100A Ampermeter Power Voltmeter Ammeter Voltage Amps Watt Kwh Frequency Power Factor Meter Multimeter (Built-in CT) by tkxec
- **How much does it cost?** $151 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac)

## Best For

- tkxec enthusiasts

## Why This Product

- Trusted tkxec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Maximize Your Savings:** Monitor energy usage to cut costs and boost efficiency.
- • **Smart Memory Function:** Auto-store energy data even during power outages.
- • **Versatile Connectivity:** Choose between built-in or external CT for easy setup.
- • **Wide Viewing Experience:** 178° color LCD for clear visibility from any angle.
- • **Comprehensive Monitoring:** Track voltage, amps, watts, kWh, frequency, and power factor.

## Overview

The Digital Single Phase Energy Meter Tester is a versatile electricity usage monitor designed for AC 110V applications. It features a wide voltage measuring range of 40-300V, current measuring capabilities up to 100A, and tracks active power up to 450,000W. With a clear 178° color LCD screen, built-in memory function, and options for built-in or external CT, this device is perfect for anyone looking to optimize energy consumption and reduce costs.

## Description

Digital Single Phase Energy Meter Tester Electricity Usage Monitor AC 110V 40V~300V 100A Ampermeter Power Voltmeter Ammeter Voltage Amps Watt Kwh Frequency Power Factor Meter Multimeter (Built-in CT)

## Features

- 1: Parameters: ac power meter voltage measuring range is AC 40-300V, current measuring range is 0-100A, active power range is 0-450000W, electric energy range is 0-99999kWh. Frequence:45.0Hz-65.0Hz,Power Factor:0.00-1.00PF
- 2: 178 degree wide viewing angle, color LCD screen, very clear
- 3:Two Type Can Choose: Built-in CT or External CT Make wiring easier
- 4:Electricity usage monitor: Monitor is the killer of the high-cost energy appliance, helping you lower power consumption and save money.
- 5: Auto Store & Memory Function: when power off, the electric energy data will be stored and memorized, can be reset.

## Product Details

- **Brand:** TKXEC
- **Power Source:** Corded Electric
- **Style:** Built-in CT
- **Color:** Clear
- **Min. Operating Voltage:** 40 Volts (AC)

## Images

![Digital Single Phase Energy Meter Tester Electricity Usage Monitor AC 110V 40V~300V 100A Ampermeter Power Voltmeter Ammeter Voltage Amps Watt Kwh Frequency Power Factor Meter Multimeter (Built-in CT) - Image 1](https://m.media-amazon.com/images/I/51Fy3elzZuL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: can the extrenal ct wire be added on to      2 feet**
A: Can be extended, but it will affect the measurement accuracy。

**Q: How many "bay" does it take in a din rail enclosure?**
A: 2 I think. See photo.

**Q: Can this be used to monitor ampere on power cord? (i.e. RV camper cable to 30 amp pedestal)**
A: if your RV camper is AC  Alternating current Then is can work

**Q: Hi, i want to use this product on north american split single phase so i need 2 cts. i would prefer to get 2 split cts - can you recommend any?**
A: Not sure I understand the question. This device is for one single phase 120v circuit. There is another related product that is 220v and you can measur total power across both 120v phases with that one.

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**Shop now:** [https://www.desertcart.nz/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac](https://www.desertcart.nz/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*