--- product_id: 121752684 title: "Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1)" brand: "robocraze" price: "£5.85" currency: GBP in_stock: true reviews_count: 2 category: "Robocraze" url: https://www.desertcart.co.uk/products/121752684-voltage-transformer-module-active-single-phase-voltage-ac-output-sensor store_origin: GB region: United Kingdom --- # Measures up to 250V AC Linear range 0-1000V for precision PCB mount with >3mm pin length Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) **Brand:** robocraze **Price:** £5.85 **Availability:** ✅ In Stock ## Summary > ⚡ Empower your Arduino projects with precision voltage sensing! ## Quick Answers - **What is this?** Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) by robocraze - **How much does it cost?** £5.85 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/121752684-voltage-transformer-module-active-single-phase-voltage-ac-output-sensor) ## Best For - robocraze enthusiasts ## Why This Product - Trusted robocraze brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide Linear Range:** Handles 0-1000V with 0-10mA output, perfect for diverse Arduino projects. - • **Adjustable Analog Output:** Fine-tune output signals to match your specific measurement needs effortlessly. - • **Seamless PCB Integration:** Designed for easy PCB mounting with extended pin length for stable connections. - • **Precision Voltage Sensing:** Onboard micro-precision transformer ensures accurate AC voltage detection up to 250V. - • **Reliable Voltage & Power Monitoring:** Consistent readings ideal for real-time voltage and power measurement applications. ## Overview The Robocraze Voltage Transformer Module is a single-phase AC voltage sensor designed for Arduino-compatible boards. It measures voltages up to 250V AC with a linear range of 0-1000V and outputs an adjustable analog signal. Featuring a micro-precision onboard transformer and PCB mounting pins longer than 3mm, it offers reliable voltage and power measurement capabilities for professional and hobbyist electronics projects. ## Description Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signal. This one is suitable to detect flow in water dispenser or coffee machine. Flow rate range: 2-100l/min water pressure resistance: = >2mpa operating temperature: = -20-85c insulation resistance: = >100m characteristics of flow pulse: F=(4.8 x q) q=l/min accuracy: ±3 percent connector type: G1 Review: Its not easy to implement. - Although there are lots of writeups and videos in how to implement this module, I couldn't get it working. If you are looking for ac volt sensor which can be implement easier, I recommend pzem 004t instead even if it's costlier. Review: Not reliable - The voltage readings are usually not reliable. No matter what trim or settings you use ! I tried matching the trim value to the actual voltage reading(using voltmeter): then it gave correct readings only for a while- after which 220 V suddenly became 150 volts ## Features - Within 250 v ac voltage can be measuredLinear range: 0-1000v 0-10ma(sampling resistor is 100ohm) installation: Pcb mounting (pin length> 3mm) - Onboard micro-precision voltage transformerRatio: 1000:1000 - Analog output corresponding quantity can be adjusted - Good consistency, for voltage and power measurement - The ac voltage sensor can detect an electric fieldMost of the detection can be done by a simple capacitor., Package contents: 1 sensor module for arduino ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NT2S9Y7 | | Best Sellers Rank | #85,795 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4,054 in Robotic Kits & Accessories | | Brand | Robocraze | | Brand Name | Robocraze | | Country of Origin | China | | Customer Reviews | 3.3 out of 5 stars 20 Reviews | | Item Weight | 50 Grams | | Manufacturer | Robocraze | | Minimum Frequency | 50 Hz | | Model Number | RC-A-41404 | | Mounting Type | PCB Mount | | Number of Items | 1 | | Part Number | RC-A-41404 | | Power Source | AC mains | | Power Source Type | AC mains | | Unit Count | 1 Count | ## Product Details - **Brand:** Robocraze - **Power Source:** AC mains - **Mounting Type:** PCB Mount - **Minimum Frequency:** 50 Hz - **Item Weight:** 50 Grams ## Images ![Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/31IiNoYkuhL.jpg) ![Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) - Image 2](https://m.media-amazon.com/images/I/41BwysPtXRL.jpg) ![Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) - Image 3](https://m.media-amazon.com/images/I/417L-fwb0xL.jpg) ![Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) - Image 4](https://m.media-amazon.com/images/I/41239+U0efL.jpg) ![Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) - Image 5](https://m.media-amazon.com/images/I/41zQiJivqYL.jpg) ## Customer Reviews ### ⭐⭐⭐ Its not easy to implement. *by M***. on 12 April 2022* Although there are lots of writeups and videos in how to implement this module, I couldn't get it working. If you are looking for ac volt sensor which can be implement easier, I recommend pzem 004t instead even if it's costlier. ### ⭐⭐ Not reliable *by S***M on 17 November 2020* The voltage readings are usually not reliable. No matter what trim or settings you use ! I tried matching the trim value to the actual voltage reading(using voltmeter): then it gave correct readings only for a while- after which 220 V suddenly became 150 volts ## Frequently Bought Together - Robocraze Voltage Transformer Module Active Single Phase Voltage AC output Sensor Module for boards compatible with Arduino (Pack of 1) - Robodo MO11 Acs712 30A Range Current Sensor Module or Hall Sensor --- ## 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/121752684-voltage-transformer-module-active-single-phase-voltage-ac-output-sensor](https://www.desertcart.co.uk/products/121752684-voltage-transformer-module-active-single-phase-voltage-ac-output-sensor) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-20*