--- product_id: 47960269 title: "Efergy 90 amp 12 mm CT clamp for Elite Classic and E2 Energy Monitor" brand: "efergy" price: "₩41502" currency: KRW in_stock: true reviews_count: 13 category: "Efergy" url: https://www.desertcart.kr/products/47960269-efergy-90-amp-12-mm-ct-clamp-for-elite-classic store_origin: KR region: South Korea --- # Measures 50mA-95A current Compatible with 110V-400V systems Fits cables up to 12mm diameter Efergy 90 amp 12 mm CT clamp for Elite Classic and E2 Energy Monitor **Brand:** efergy **Price:** ₩41502 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your energy IQ—because every watt counts! ## Quick Answers - **What is this?** Efergy 90 amp 12 mm CT clamp for Elite Classic and E2 Energy Monitor by efergy - **How much does it cost?** ₩41502 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/47960269-efergy-90-amp-12-mm-ct-clamp-for-elite-classic) ## Best For - efergy enthusiasts ## Why This Product - Trusted efergy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Future-Proof Your Home:** Supports 3-phase power with additional sensors—stay ahead in energy management and efficiency. - • **Effortless Installation:** Clamps easily onto cables up to 12mm thick—no electrician needed, just snap and monitor. - • **Precision Current Sensing:** Track energy use from a whisper-quiet 50mA up to a powerful 95A for total control. - • **Expand Your Energy Insights:** Add extra sensors to your Efergy Elite or E2 monitor for multi-phase systems and full-spectrum data. - • **Universal Voltage Compatibility:** Seamlessly integrates with electrical systems from 110V to 400V—flexibility that fits your setup. ## Overview The Efergy 90 amp 12 mm CT clamp is a precision sensor designed as an add-on for Efergy Elite and E2 energy monitors. It accurately measures electrical current from 50mA to 95A and fits cables up to 12mm in diameter, compatible with 110V to 400V systems. Ideal for expanding monitoring capabilities, especially in 3-phase electrical setups, it offers easy installation and reliable performance to empower smarter energy management. ## Description Product Description Additional sensors for use with efergy energy monitors and hubs. Both models of energy monitor come supplied with one sensor. If you are operating a 3-phase supply then you will require two additional sensors. Box Contains 1 x Jackplug CT standard sensor Review: Energy customer support was good - I have had this monitoring system for some years, but this part of the device got damaged during house renovations. After a few messages with support I found out I could buy a replacement and bingo, it's all working again. I like being able to monitor on my computer - it's much better than on fiddly screens. Review: Efergy CT Sensor for Elite Electricity monitor - Works well as a second sensor. ## Features - Sensor Voltage Range: Compatible with electrical systems ranging from 110V to 400V for versatile installation options - Measuring Current: Accurately measures electrical current from 50mA up to 95A for comprehensive energy monitoring - Cable Compatibility: Will attach around a cable of a diameter up to 12mm for easy installation on standard wiring - Additional Sensor Capability: Designed as an extra sensor for use with efergy Elite and E2 energy monitors and hubs - Three-Phase Supply Support: Two additional sensors required when operating a 3-phase electrical supply system for complete monitoring coverage ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00HYH52OQ | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 216,866 in DIY & Tools ( See Top 100 in DIY & Tools ) 95 in Power Monitors 312 in Digital Camera Screen Protectors 4,029 in Home Security Systems | | Customer Reviews | 4.1 4.1 out of 5 stars (42) | | Date First Available | 23 Sept. 2009 | | Item Package Quantity | 1 | | Item Weight | 40 g | | Item model number | 2.0 | | Manufacturer | Efergy Technologies | | Number of Pieces | 1 | | Part Number | 2.0 | | Product Dimensions | 2.76 x 1.38 x 0.01 cm; 40 g | ## Images ![Efergy 90 amp 12 mm CT clamp for Elite Classic and E2 Energy Monitor - Image 1](https://m.media-amazon.com/images/I/51nTqUpcSvL.jpg) ![Efergy 90 amp 12 mm CT clamp for Elite Classic and E2 Energy Monitor - Image 2](https://m.media-amazon.com/images/I/417jNSJcYdL.jpg) ## Questions & Answers **Q: does the sensor recognize direction of current?** A: No it works the same either way round. **Q: I too have a Economy 7 meter and can`t get a signal with one jack plug , why did you need 2 and did you put the transmitters on the same Live lead?** A: In your meter box you should have 2 live cables coming from the isolator switch into your meter. One is the day time feed the other is the economy 7. I have a jack plug that clips round each of these that both plug into the transmitter. Hence at night when then current in switches from one live to the other it is monitored too. **Q: do I need this product to go with the energy power meter** A: No, you get one with the power meter, that wasn't obvious in the write-up so I ordered a separate one. **Q: Hi, is the jack 3.5mm?** A: Looks more like 2.5mm to me. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Energy customer support was good *by J***T on 30 November 2019* I have had this monitoring system for some years, but this part of the device got damaged during house renovations. After a few messages with support I found out I could buy a replacement and bingo, it's all working again. I like being able to monitor on my computer - it's much better than on fiddly screens. ### ⭐⭐⭐⭐ Efergy CT Sensor for Elite Electricity monitor *by S***S on 19 June 2018* Works well as a second sensor. ### ⭐⭐⭐⭐⭐ Great *by D***E on 26 October 2023* Just what I needed my old one stopped working .thank you Amazon, --- ## 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.kr/products/47960269-efergy-90-amp-12-mm-ct-clamp-for-elite-classic](https://www.desertcart.kr/products/47960269-efergy-90-amp-12-mm-ct-clamp-for-elite-classic) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-09-28*