--- 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: "165.37 DT" currency: TND in_stock: true reviews_count: 13 category: "Tkxec" url: https://www.desertcart.tn/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac store_origin: TN region: Tunisia --- # 0-100A current range 178° wide-view color LCD 0-99999 kWh energy tracking 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:** 165.37 DT **Availability:** ✅ In Stock ## Summary > ⚡ Empower Your Energy IQ — See More, Save More! ## 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?** 165.37 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **Data Persistence:** Auto-store & memory function ensures your energy data is safe even during power outages. - • **Smart Energy Savings:** Identify energy-hungry appliances instantly and cut costs with real-time consumption monitoring. - • **Vivid Visual Display:** Experience crystal-clear data on a vibrant 178° wide-angle color LCD for effortless monitoring. - • **Flexible Installation:** Choose built-in or external CT options for seamless, clutter-free wiring tailored to your setup. - • **Precision Power Insights:** Track voltage (40-300V), current (0-100A), and power (up to 450kW) with pinpoint accuracy. ## Overview This Digital Single Phase Energy Meter Tester offers comprehensive real-time monitoring of AC voltage (40-300V), current (0-100A), power (up to 450,000W), frequency, and power factor. Featuring a sharp 178° wide-angle color LCD, it supports both built-in and external current transformers for flexible installation. With auto data storage and memory retention, it ensures continuous tracking of electricity usage, empowering professionals to optimize energy consumption and reduce costs efficiently. ## Description Product description DIN-rail multi-function Digital meter can measure AC voltage, AC current, active power, power factor, frequence and electric energy and the same time. The meter have a colorful, full-view, high definition LCD to display the measure parameters. External CT Accuracy:1％±2 words Range: AC voltage: AC 40.0-300.0V AC Current:AC 0-100.0A, the current resolution is 0.01A . Frequence:45.0Hz-65.0Hz Power Factor:0.00-1.00PF Built-in CT Wiring is more beautiful and concise Protruding part size:54mmx45mmx16mm Installation width=3P (DZ47/C45 air switch position) Electric Power: 0-450000W, the electric power resolution is 0.1W when measure electric power between 0-9999.9W, otherwise the electric power resolution is 1W. Electric Energy: 0-99999kwh, the display of electric energy resolution is 0.01kwh when measure electric engery between 0-999.99kwh, the display of electric energy resolution is 0.1kwh when measure electric engery between 1000.0-9999.9kwh and the display of electric energy resolution is 1kwh when measure electric engery larger than 9999.9kwh Built-in CT wiring diagram When power on, the meter display the measure parameters. When power on, you can press the button of SAM CK last for 5 seconds, then the electric energy will to be zero and start to cumulate when release the button. And when power off, the meter can save the value of electric energy and go on cumulating data when the meter power-on next. External CT wiring diagram Review: ⭐️⭐️⭐️⭐️⭐️ Clear Insight Into Power Consumption - This single-phase energy meter is an excellent tool for anyone who wants clear, real-time visibility into electrical usage without unnecessary complexity. It provides a comprehensive snapshot of power consumption by displaying voltage, current, power factor, frequency, and cumulative kWh—all in a clean, easy-to-read format. Installation is straightforward thanks to standard DIN-rail mounting, making it a natural fit inside an electrical panel or control enclosure. The wiring layout is intuitive, and once installed, the unit is immediately useful with no complicated configuration required. It simply powers up and starts providing meaningful data. While I did not formally verify measurement accuracy against calibrated test equipment, the readings are consistent and align with expectations based on known loads. For my use case, that level of confidence was more than sufficient, especially given the clarity and breadth of information provided. Overall, this is a highly practical, well-designed energy monitor that delivers excellent functionality at a very competitive price. Whether you’re tracking power usage, monitoring system performance, or simply wanting better insight into your electrical consumption, this meter is a smart and dependable choice. Review: Nice unit, I bought 2 of them. Got a small problem…. - I’m using this meter on my Single Phase 240 volt pool pump, the Energy Meter was wired to also run on 240vac. It reads accurate and agreed with my volt meter and amp probe. I changed the pool pump contactor to one that could handle more current, this contactor only had a 120vac coil. I also had 120vac in the box so I wired the Energy Meter to run on 120vac. Now it’s only indication half of the power even though the pump is running on 240vac and my amp probe is showing a 6 amp draw. I could rewire the Energy Meter back to run on 240vac. I just want to know why it isn’t reading correctly. The other Energy Meter I have is connected to my pool heater, it runs on 120vac and the meter is connected to 120vac, it reads accurately. UPDATE: July 16, 2024 And for all of you that said I need 2 meters why does it read correctly when the meter is powered by 240 V single phase and not 120 V? The current that the pump draws is the same whether the meter runs on 120 or 240. I changed the meter to run on 240 and now it reads correctly. Whether it runs on 120 or 240 it’s still single phase, the neutral and ground legs aren’t drawing any current. ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B094F98PYF | | Best Sellers Rank | #212,299 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #298 in Multi Testers | | Brand | TKXEC | | Brand Name | TKXEC | | Color | Clear | | Compatible Devices | Standard Electrical Circuits | | Customer Reviews | 4.5 out of 5 stars 252 Reviews | | Manufacturer | shenzhenshixinruidianzikejiyouxiangongsi | | Measurement Type | Ammeter, Multimeter, Voltmeter | | Min. Operating Voltage | 40 Volts (AC) | | Minimum Operating Voltage | 40 Volts (AC) | | Part Number | AZ011 | | Power Source | Corded Electric | | Style | Built-in CT | | Style Name | Built-in CT | | UPC | 707025203392 | | Unit Count | 1.0 Count | ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Clear Insight Into Power Consumption *by M***E on February 3, 2026* This single-phase energy meter is an excellent tool for anyone who wants clear, real-time visibility into electrical usage without unnecessary complexity. It provides a comprehensive snapshot of power consumption by displaying voltage, current, power factor, frequency, and cumulative kWh—all in a clean, easy-to-read format. Installation is straightforward thanks to standard DIN-rail mounting, making it a natural fit inside an electrical panel or control enclosure. The wiring layout is intuitive, and once installed, the unit is immediately useful with no complicated configuration required. It simply powers up and starts providing meaningful data. While I did not formally verify measurement accuracy against calibrated test equipment, the readings are consistent and align with expectations based on known loads. For my use case, that level of confidence was more than sufficient, especially given the clarity and breadth of information provided. Overall, this is a highly practical, well-designed energy monitor that delivers excellent functionality at a very competitive price. Whether you’re tracking power usage, monitoring system performance, or simply wanting better insight into your electrical consumption, this meter is a smart and dependable choice. ### ⭐⭐⭐⭐⭐ Nice unit, I bought 2 of them. Got a small problem…. *by J***L on June 23, 2024* I’m using this meter on my Single Phase 240 volt pool pump, the Energy Meter was wired to also run on 240vac. It reads accurate and agreed with my volt meter and amp probe. I changed the pool pump contactor to one that could handle more current, this contactor only had a 120vac coil. I also had 120vac in the box so I wired the Energy Meter to run on 120vac. Now it’s only indication half of the power even though the pump is running on 240vac and my amp probe is showing a 6 amp draw. I could rewire the Energy Meter back to run on 240vac. I just want to know why it isn’t reading correctly. The other Energy Meter I have is connected to my pool heater, it runs on 120vac and the meter is connected to 120vac, it reads accurately. UPDATE: July 16, 2024 And for all of you that said I need 2 meters why does it read correctly when the meter is powered by 240 V single phase and not 120 V? The current that the pump draws is the same whether the meter runs on 120 or 240. I changed the meter to run on 240 and now it reads correctly. Whether it runs on 120 or 240 it’s still single phase, the neutral and ground legs aren’t drawing any current. ### ⭐⭐⭐⭐⭐ Genial *by W***S on May 16, 2026* Calidad Calidad ## Frequently Bought Together - 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) - 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.tn/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac](https://www.desertcart.tn/products/325409208-digital-single-phase-energy-meter-tester-electricity-usage-monitor-ac) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-09*