--- product_id: 170464798 title: "- High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz)" brand: "ex electronix express" price: "R4387" currency: ZAR in_stock: true reviews_count: 8 category: "Ex Electronix Express" url: https://www.desertcart.co.za/products/170464798-high-voltage-probe-40-000-volts-max-dc-28-000 store_origin: ZA region: South Africa --- # 40,000V max DC power ±1% accuracy up to 20kV DC 1,000MΩ ultra-high input impedance - High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) **Brand:** ex electronix express **Price:** R4387 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your precision — measure the impossible with confidence! ## Quick Answers - **What is this?** - High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) by ex electronix express - **How much does it cost?** R4387 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/170464798-high-voltage-probe-40-000-volts-max-dc-28-000) ## Best For - ex electronix express enthusiasts ## Why This Product - Trusted ex electronix express brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision You Can Trust:** Industry-leading ±1% accuracy ensures your diagnostics are spot-on 📏 - • **Ergonomic & Ready to Use:** Includes 3ft ground lead and 3.3ft output cable for flexible, hassle-free setup - • **Ultra-High Input Impedance:** 1,000MΩ input impedance protects your sensitive equipment 🔌 - • **Unmatched Voltage Handling:** Safely measure up to 40,000V DC and 28,000V AC with confidence ⚡ - • **Engineered for Professionals:** Designed for 10MΩ DMMs with <0.5% accuracy—perfect for expert troubleshooting ## Overview The EX ELECTRONIX EXPRESS High Voltage Probe HVP40 is a professional-grade tool designed to safely measure extremely high voltages up to 40,000V DC and 28,000V AC. Featuring a 1,000MΩ input impedance and ±1% accuracy up to 20kV DC, it ensures precise readings for demanding industrial and scientific applications. Compatible with 10MΩ input impedance digital multimeters, this probe includes extended leads for convenient, reliable connections, making it an essential accessory for expert electrical diagnostics. ## Description Product description High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) NOTE: For use with 10MΩ input impedance DMM (Accuracy < 0.5%) only 40,000 volts max DC 28,000 volts max AC (50/60 Hz) 1,000MΩ input impedance Accuracy DC: ±1% to 20KV, ±2% to 40KV. Accuracy AC: -5% to -10% (1~28KV ; 50/60Hz). Output Division: 1V/1KV Full Specifications DMM Leads & Ground Lead Ground lead length: 3 feet (90cm) Output cable length: 3.3 feet (100cm) Connect the plugs to volts (Hi) and com (Lo) input terminals of your voltmeter. Select the desired voltmeter function and range, do not use autoranging. Whenever possible, turn the high voltage source off before making any connections. Connect the divider probe common lead (alligator clip) to a good earth ground or reliable chassis ground. Review: Works fine - Seems to work fine. Can't check calibration exactly, but it reads very close to a 5kV analog meter on my hipot tester. Review: Measures accuratly and working fine - Used it to diagnose my electrostatic air filter. Found the high voltage transformer not working. Replaced and verified the correct voltage working. ## Features - 40,000 Volts max DC - 28,000 Volts max AC (50/60 Hz) - 1,000MΩ input impedance - Accuracy DC: +/- 1% to 20KV +/- 2% to 40KV, AC: 5% to 10% (50/60 Hz) - Division ratio 1,000:1 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LW5UKQ6 | | Best Sellers Rank | #333,855 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,348 in Test Probes & Leads | | Brand | EX ELECTRONIX EXPRESS | | Brand Name | EX ELECTRONIX EXPRESS | | Color | Red, Black | | Customer Reviews | 4.6 out of 5 stars 64 Reviews | | Included Components | High Voltage Probe, User Manual | | Item Dimensions | 7 x 2 x 2 inches | | Item Length | 13.39 Inches | | Item dimensions L x W x H | 7 x 2 x 2 inches | | Manufacturer | RSR ELECTRONICS | | Model | HVP40 | | Part Number | HVP40 | | Power Source | Corded Electric | | Style | 40,000 Volts Max DC, 28,000 Volts Max AC | | Style Name | 40,000 Volts Max DC, 28,000 Volts Max AC | | UPC | 714833891352 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 50 Degrees Celsius | ## Product Details - **Age Range (Description):** Adult - **Brand:** EX ELECTRONIX EXPRESS - **Color:** Red, Black - **Display Type:** Digital - **Included Components:** High Voltage Probe, User Manual - **Outer Material:** Plastic - **Power Source:** Corded Electric - **Product Care Instructions:** Wipe Clean - **Special Feature:** High Accuracy - **Unit Count:** 1.0 Count ## Images ![- High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) - Image 1](https://m.media-amazon.com/images/I/61ik-2836WL.jpg) ## Questions & Answers **Q: Can this be used to test output on microwave Transformers?** A: Yes. I have used it to check the HV output of a microwave and neon transformers. Be careful. Use one hand to measure and the other hand in your pocket. **Q: Can this be used with oscilloscope to measure ac beside 60hz sinusoidal? what is bandwidth?** A: I suppose it could, though the signal could potentially be noisy. The leads are not shielded. You would also have to correct the impedance. This probe uses a simple voltage-divider resistor network to do its magic. Good luck! **Q: Could this be use to probe the residual high voltage in a CRT monitor (and to dissipate it)?** A: Yes, definitely. The probe's input resistance in 1G-ohm (1000 M-ohm). With a typical 500pF filter capacitance in the CRT HV power supply, the discharge rate will be 0.5 seconds to discharge to 37% of the original voltage, 1 second to 37% of that, etc. After 5 seconds there will be only a couple of volts remaining. BE SURE to attach the ground clip to the metal chassis of the CRT device whether or not the probe is connected to a meter. To be completely safe, wait a minute after discharging then repeat the process. The glass in the CRT "absorbs" some charge and can recharge the filter capacitor to a few hundred volts. **Q: can it measure 12 volt vehicle ignition coils?** A: I could not say for sure. But the probe does indeed measure DC voltage up to 40,000 volts. So you should be able to set your meter that you have the probe plugged into and make the measurement, by setting your meter to read DC volts. (not AC volts) Obviously you're only dealing with 12v on automotive voltage. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works fine *by S***R on June 27, 2025* Seems to work fine. Can't check calibration exactly, but it reads very close to a 5kV analog meter on my hipot tester. ### ⭐⭐⭐⭐⭐ Measures accuratly and working fine *by D***R on November 5, 2024* Used it to diagnose my electrostatic air filter. Found the high voltage transformer not working. Replaced and verified the correct voltage working. ### ⭐⭐⭐⭐ Design Changes *by R***D on November 5, 2021* About right for price, but would be wiling to pay twice the price with a variable user slectable voltage splitter ratio in several increments to less than 1000:1 from 40 kv. Also, with a probe that is a flexible shaft instead of rigid; also, with a slightly larger ## Frequently Bought Together - EX ELECTRONIX EXPRESS High Voltage Probe 40,000 Volts Max DC, 28,000 Volts Max AC (50/60 Hz) Red, Black - onelinkmore BNC Male Plug to 2X 4mm Dual Banana Female Jack Socket Binding Post RF Coax Coaxial Splitter Connector BNC Banana Adapter for HF Radio Antennas Oscilloscope DVM Pack of 5 - Goupchn Oscilloscope Clip Probes 200MHz Fully Insulated BNC End Probe with Accessories Kit 1X 10X --- ## 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.za/products/170464798-high-voltage-probe-40-000-volts-max-dc-28-000](https://www.desertcart.co.za/products/170464798-high-voltage-probe-40-000-volts-max-dc-28-000) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-06-22*