--- product_id: 333416601 title: "KETOTEK Single Phase Energy Meter Din Rail Electricity Usage Monitor AC 40-300V 100A Voltmeter Ammeter Watt Kwh Frequency Power Meter Built-in CT 110V" brand: "ketotek" price: "€ 57.57" currency: EUR in_stock: true reviews_count: 13 category: "Ketotek" url: https://www.desertcart.hr/products/333416601-ketotek-single-phase-energy-meter-din-rail-electricity-usage-monitor store_origin: HR region: Croatia --- # AC 40-300V voltage range 0-99999 kWh energy tracking 0-100A current capacity KETOTEK Single Phase Energy Meter Din Rail Electricity Usage Monitor AC 40-300V 100A Voltmeter Ammeter Watt Kwh Frequency Power Meter Built-in CT 110V **Brand:** ketotek **Price:** € 57.57 **Availability:** ✅ In Stock ## Summary > ⚡ Empower your space with smart energy mastery! ## Quick Answers - **What is this?** KETOTEK Single Phase Energy Meter Din Rail Electricity Usage Monitor AC 40-300V 100A Voltmeter Ammeter Watt Kwh Frequency Power Meter Built-in CT 110V by ketotek - **How much does it cost?** € 57.57 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/333416601-ketotek-single-phase-energy-meter-din-rail-electricity-usage-monitor) ## 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 - • **Vivid HD Display:** Colorful LCD with 178° wide viewing angle and backlight ensures clear data visibility day or night. - • **Safety First Design:** Durable ABS flame-resistant casing paired with a precision chip for reliable, safe operation. - • **Built-in Data Retention:** Automatically stores consumption data during power outages; reset with a simple 5-second press. - • **Precision Power Insights:** Track voltage, current, power, and frequency with 0.01 accuracy for smarter energy decisions. - • **Real-Time Energy Monitoring:** Instantly monitor your home's electricity usage to optimize consumption and reduce bills. ## Overview The KETOTEK Single Phase Energy Meter is a compact, high-precision DIN rail device designed for real-time monitoring of AC voltage (40-300V), current (up to 100A), power, frequency, and energy consumption. Featuring a vibrant HD LCD display with wide viewing angles and backlight, it stores data even during power loss and offers easy reset functionality. Built with flame-resistant ABS material and a precision chip, it ensures safe, reliable operation while helping users optimize electricity usage efficiently. ## Description Buy KETOTEK Single Phase Energy Meter Din Rail Electricity Usage Monitor AC 40-300V 100A Voltmeter Ammeter Watt Kwh Frequency Power Meter Built-in CT 110V: Power Meters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: easy to read - works well, east install, BRIGHT display. great value Review: I works great! - This Energy Meter seems to work as advertised. I tested the device on some various equipment. 1st was my AT&T Fiber Router / Modem. The power factor was about .58, not good. There is a transformer type power supply. 2nd test was a 200 Watt tungsten light bulb. The PF = 1.00 This is expected the load is pure resistance. ## Features - Energy Meter 6 in 1: Voltage measuring range: AC 40-300V, Current measuring range: 0-100A, Active power: 0-30000W, Electric energy: 0-99999kWh, Frequency: 45-65Hz, Power factor: 0.00-1.00PF. - Data Storage & Reset: 1. The electricity consumption data will be stored when power off. 2. Press the reset button for 5s, this kwh usage meter will be reseted. - Safe & High Precision: This single phase power consumption meter features high quality ABS flame resistant material and percision chip, making it safe to use. - Better Visual Experience: Colorful LCD HD display, 178° viewing without dead angle, with backlight function, this ac power meter single phase is clearly visible whatever day or night. - Electricity Usage Monitor: Real-time monitoring of home's electricity consumption to help you lower power consumption. This energy meter can be used to measure non-standard sine wave from inverter. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B095LYZWYV | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #44,597 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Industrial Power Meters | | Customer Reviews | 4.6 4.6 out of 5 stars (2,004) | | Date First Available | June 22, 2021 | | Included Components | Energy Meter, User's Manual | | Item Package Quantity | 1 | | Item Weight | 5 ounces | | Item model number | D52-2047HD | | Manufacturer | KETOTEK | | Material | ABS | | Measurement Accuracy | 0.01 | | Part Number | D52-2047HD | | Power Source | Electricity,Electric | | Product Dimensions | 2.13 x 2.52 x 3.15 inches | | Size | AC 40-300V 100A | | Style | AC 40-300V 100A | | Voltage | 230 | ## Images ![KETOTEK Single Phase Energy Meter Din Rail Electricity Usage Monitor AC 40-300V 100A Voltmeter Ammeter Watt Kwh Frequency Power Meter Built-in CT 110V - Image 1](https://m.media-amazon.com/images/I/71B6ThjtsQL.jpg) ## Questions & Answers **Q: For the averages can this meter run in reverse if monitoring the AC side of solar inverters? If not, does anyone have a suggestion for one that can?** A: No, this meter can not run in reverse. **Q: Does this measure rms or average ac?** A: This energy meter measures rms. **Q: This seller is selling a device that cannot accurately measure power in a us based household. only one "hot" lead is being measured and a house panel** A: So use two and add them together. **Q: How many power meters do i need to monitor: phase 1+ n (110v), phase 2 + n (110v), and phase 1 + phase 2 (220v)?** A: hi it depends on your requirement. You can only use one meter to monitor one of the phase + n . Or you can use three meters to monitor each phase + n . ## Customer Reviews ### ⭐⭐⭐⭐⭐ easy to read *by R***S on January 29, 2026* works well, east install, BRIGHT display. great value ### ⭐⭐⭐⭐⭐ I works great! *by G***S on February 4, 2026* This Energy Meter seems to work as advertised. I tested the device on some various equipment. 1st was my AT&T Fiber Router / Modem. The power factor was about .58, not good. There is a transformer type power supply. 2nd test was a 200 Watt tungsten light bulb. The PF = 1.00 This is expected the load is pure resistance. ### ⭐⭐⭐⭐⭐ You will not regret this purchase. *by J***N on March 25, 2026* Exactly what I was looking for. Simple, inexpensive and very well made. I wanted to monitor power usage to a camper by brother in law is staying in on my property and it has performed flawlessly for that. We reset it monthly and he pays me13cents per KWAH, that way he doesn't feel bad and neither do I. Yes, in TN we only pay $0.13 per kilowatt hour in 2026. Glad I dont live up north anymore. ## Frequently Bought Together - KETOTEK Single Phase Energy Meter Din Rail Electricity Usage Monitor AC 40-300V 100A Voltmeter Ammeter Watt Kwh Frequency Power Meter Built-in CT 110V - smseace Distribution Protection Box, ABS Plastic Transparent Cover Waterproof Distribution Box IP65, for Indoor Wall Circuit Breaker (5 Way) - Chtaixi AC Miniature Circuit Breaker, 32 Amp 120V/240V 2 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C32 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/333416601-ketotek-single-phase-energy-meter-din-rail-electricity-usage-monitor](https://www.desertcart.hr/products/333416601-ketotek-single-phase-energy-meter-din-rail-electricity-usage-monitor) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-06*