--- product_id: 42714674 title: "ETCR7300A Large Caliber Three Phase Power Tester Large Diameter Clamp Power Meter With RS232 Interface" brand: "etcr" price: "£281.93" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/42714674-etcr7300a-large-caliber-three-phase-power-tester-large-diameter-clamp store_origin: GB region: United Kingdom --- # ETCR7300A Large Caliber Three Phase Power Tester Large Diameter Clamp Power Meter With RS232 Interface **Brand:** etcr **Price:** £281.93 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** ETCR7300A Large Caliber Three Phase Power Tester Large Diameter Clamp Power Meter With RS232 Interface by etcr - **How much does it cost?** £281.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/42714674-etcr7300a-large-caliber-three-phase-power-tester-large-diameter-clamp) ## Best For - etcr enthusiasts ## Why This Product - Trusted etcr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Technical Specifications Function: Measure three phase AC voltage, leakage current, current, active power, reactive power, apparent power, power, phase between current and voltage, phase between phase voltage, frequency, power energy, phase sequence Power:6V DC(LR6×4 alkaline dry batteries, continuously working for 12 hours) Test Mode: Clamp CT, integral mode Clamp Size: 80mm×80mm(can clamp electric cable of 80mm diameter, or 96mm×4mm flat cable and steel earth wires) Current Range: AC 0.0A-2000A, Resolution: 0.1A Power Range: AC 0.0KW-1200KW, Resolution: 0.1KW Voltage Range: AC 0-600V, Resolution: 0.01V Frequency Range: 25Hz-100Hz, Resolution: 0.1Hz Phase Range: 0.0°-360.0°, Resolution: 0.1° Power Factor Range: 0.3-1.0(Capacitive or inductive) , Resolution: 0.001 Power Energy Range: 0.0000KWh-72000KWh, Resolution: 0.0001KWh Measured Wire Position: Measured wire at approximately the geometric center of the clamp Data Storage:200 sets,"FULL the memory is full " symbol indicate RS232 Interface: With RS232 interface, download data to computer for analysis and management, RS232 communication wire, 1.8m Frequency: 50Hz ,60Hz automatic identification Gear Shift: Automatic shift Sample Rate: About 2 times/second Line Voltage: Below AC 600V line measurement Display Mode: LCD: 128dots×64dots; Display area: 43mm×29mm Meter Size: Length 275mm × Width 145mm × Height 40mm Backlight: Controlled by " * " key Data Hold: "HOLD" symbol appears Overflow: "OL" symbol appears Working Current: 50mA with enabled backlight; 25mA with disabled backlight Working Temperature and Humidity: -10℃-40℃; 80%rh Storage Temperature and Humidity: -10℃-60℃; below 70%rh ## Features - Tester is well designed for the measurement of three-phase AC voltage, current, voltage, phase voltage and current phase, frequency, phase, power, active power, reactive power, apparent power, power factor, total power of multi-functional, digital, intelligent instrument - Battery voltage: Low battery symbol appears to remind the replacement of battery when the battery voltage drops below 5.2V. - The meter can store 200 sets of data, with RS232 interface, upload stored data to the computer through the system software, implementing online real-time monitoring, historical inquires, dynamic display. - Adopt the latest magnetic shielding techniques, can almost shield the influence from external magnetic field, to ensure the high precision, high stability and high reliability of perennial uninterrupted measurement - Automatic Shutdown: Automatically shutdown about 15 minutes after power on to reduce battery consumption ## Images ![ETCR7300A Large Caliber Three Phase Power Tester Large Diameter Clamp Power Meter With RS232 Interface - Image 1](https://images-na.ssl-images-amazon.com/images/I/41AmIYNTwDL.jpg) ![ETCR7300A Large Caliber Three Phase Power Tester Large Diameter Clamp Power Meter With RS232 Interface - Image 2](https://images-na.ssl-images-amazon.com/images/I/51jMOUE3kfL.jpg) ![ETCR7300A Large Caliber Three Phase Power Tester Large Diameter Clamp Power Meter With RS232 Interface - Image 3](https://images-na.ssl-images-amazon.com/images/I/51Px7DIkfVL.jpg) --- ## 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.co.uk/products/42714674-etcr7300a-large-caliber-three-phase-power-tester-large-diameter-clamp](https://www.desertcart.co.uk/products/42714674-etcr7300a-large-caliber-three-phase-power-tester-large-diameter-clamp) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*