---
product_id: 453259586
title: "KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester"
brand: "ketotek"
price: "$78.62"
currency: USD
in_stock: true
reviews_count: 5
url: https://www.desertcart.us/products/453259586-ketotek-digital-ac-voltmeter-panel-mounting-meter-ac80-300v-frequency
store_origin: US
region: United States of America
---

# AC 80-300V range Compact 68x42x38mm size 45-65Hz frequency range KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester

**Brand:** ketotek
**Price:** $78.62
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead with precision — measure smarter, not harder!

## Quick Answers

- **What is this?** KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester by ketotek
- **How much does it cost?** $78.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/453259586-ketotek-digital-ac-voltmeter-panel-mounting-meter-ac80-300v-frequency)

## Best For

- ketotek enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Compact Design:** Fits seamlessly into any panel with a sleek 2.68×1.65×1.5 inch footprint.
- • **Dual-Color LED Display:** Voltage glows red, frequency shines green for instant clarity.
- • **No External Power Needed:** Powered directly from tested circuit—zero extra wiring hassle.
- • **Fast & Reliable Measurement:** Updates twice per second to keep you ahead in real-time monitoring.
- • **Wide Voltage & Frequency Range:** Covers 80-300V and 45-65Hz with 1% accuracy for precise readings.

## Overview

The KETOTEK Digital AC Voltmeter Panel Mounting Meter is a compact, dual-function device that accurately measures AC voltage (80-300V) and frequency (45-65Hz) with a clear dual-color LED display. It requires no external power supply, updates readings twice per second, and fits easily into any panel, making it an essential tool for professionals demanding reliable, real-time electrical monitoring.

## Description

Specifications:Dual measurement of AC voltage, AC Hertz (It can't be used for measuring the AC power converted from a DC power with an inverter)Voltage Measuring Range: AC 80~300VHertz Measuring Range: 45~65HzMeasurement speed: 2 times/sAccuracy: 1％±2 digitsCutting Size: 62mm×36mm / 2.44" × 1.42" Product Size: 68mm ×42mm × 38mm / 2.68" × 1.65" × 1.5" Operating Temperature: -10℃~50℃ / 10℉~122℉Package Include:1 × AC Voltmeter Frequency meter

## Features

- 【2 in 1 Multimeter】Voltage and frequency can be displayed with different color on the LED screen, red for voltage, green for frequency. It is clear and convenient to read.
- 【Wide measuring range】Voltage: AC 80~300V, Hertz: 45-65Hz, Accuracy: 1% ± 2 digits, with high working efficiency of 2 times/s measuring speed.
- 【No extra individual power supply】It can directly connect two wires to the tested voltage to measure voltage and frequency without power supply.
- 【Ultra small size】2.68×1.65×1.5inch / 68x42x38mm. This Voltage Frequency Meter can be installed on anywhere flexibly.
- 【More information】Operating temperature: 10°F~122°F/-10℃ ~ 50℃. Note: The AC current meter only suits for pure AC 50-60HZ power supply and can NOT be used for square wave, inverter output and sine wave circuit measurement of modified sine wave, otherwise the meter will be damaged.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | KETOTEK |
| Power Source | Corded Electric |
| Style | Digital |
| Colour | Green,Red |
| Item Weight | 54 Grams |
| Item dimensions L x W x H | 7 x 4 x 3.9 Centimeters |
| Min. Operating Voltage | 80 Volts |
| Specification Met | CE |
| Upper Temperature Rating | 122 Degrees Fahrenheit |
| Measurement Type | Voltmeter |
| Maximum Operating Voltage | 300 Volts |
| UPC | 723260101705 |
| Manufacturer | KETOTEK |
| Global Trade Identification Number | 00723260101705 |
| Item Weight | 54 g |
| Product Dimensions | 7 x 4 x 3.9 cm; 54 g |
| Item part number | D35-B0167US |
| Item Height | 39 Millimeters |
| Item Width | 40 Millimeters |
| Are batteries included? | No |

## Product Details

- **Brand:** KETOTEK
- **Power Source:** Corded Electric
- **Style:** Digital
- **Colour:** Green,Red
- **Item Weight:** 54 Grams

## Images

![KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester - Image 1](https://m.media-amazon.com/images/I/71i7WRXT1wL.jpg)
![KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester - Image 2](https://m.media-amazon.com/images/I/61ff5soo38L.jpg)
![KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester - Image 3](https://m.media-amazon.com/images/I/51xcDpZfA+L.jpg)
![KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester - Image 4](https://m.media-amazon.com/images/I/512SbFRU1pL.jpg)
![KETOTEK Digital AC Voltmeter Panel Mounting Meter AC80-300V Frequency Counter 45.0-65.0 HZ LED Display Voltage Frequency Meter Tester - Image 5](https://m.media-amazon.com/images/I/51mq0sp03rL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the lowest current it will read? The picture suggests 10ma, will it read to .001A?**
A: Hi, Yes, the lowest current it will read is 0.01A (10mA), and it can not read to 0.001A ( 1mA).
The resolution will be 0.01A when the testing current less than 10A.
The resolution will be 0.1A when the testing current less than 100A.

**Q: Can I use this instrument with 4 feet of wire between meter and current sensor transformer?**
A: I use mine with a line cord attached the measure voltage and frequency of my standby generator and it works quiet well. My line cord iw over 4' 
Good Luck

**Q: Does this allow for 220 volt input with 2 110 volt wires**
A: Yes it measure up to 300 volts and will measure 2 lines of 110 volts if they are different phases just like the 220 in your home.

**Q: One spec says 0-50A another says 0-100A. Can this device continuously monitor 70 amp at 110 volts?**
A: Hi, I am sorry for that these two different description make you confused, since the listing had been locked by amazon, and we can't revise it.
Here we confirm that Its measurement range is 0-100A, 80-300V, AC. So it can continuously monitor 70 amp at 110 volts, AC.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    worked great
  

*by T***. on Reviewed in Canada on 4 March 2022*

The voltmeter and Frequency counter was very easy to install and worked great.

### ⭐⭐⭐⭐⭐ 







  
  
    really got a charge out of this!
  

*by K***N on Reviewed in the United States on 25 September 2024*

Perfect fit for a cabinet, super easy install, spot on accurate. And looks great.

### ⭐⭐⭐⭐ 







  
  
    Good Meter But Small
  

*by O***E on Reviewed in the United States on 19 November 2023*

I purchased for the purpose of utilizing as a HZ meter. Does its job but just keep in mind it’s very small. Looking at the picture I thought it would be larger. Just check the measurements. Functioned with no issues.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-04*