---
product_id: 111398780
title: "YHDC Split Core Hall Current Sensor HST21 300A/4V"
brand: "yhdc"
price: "€ 38.78"
currency: EUR
in_stock: false
reviews_count: 1
url: https://www.desertcart.pt/products/111398780-yhdc-split-core-hall-current-sensor-hst21-300a-4v
store_origin: PT
region: Portugal
---

# 300A current measurement range UL94-V0 flame resistance Wide operating temp -10~70°C YHDC Split Core Hall Current Sensor HST21 300A/4V

**Brand:** yhdc
**Price:** € 38.78
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Measure with Confidence, Lead with Precision

## Quick Answers

- **What is this?** YHDC Split Core Hall Current Sensor HST21 300A/4V by yhdc
- **How much does it cost?** € 38.78 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/111398780-yhdc-split-core-hall-current-sensor-hst21-300a-4v)

## Best For

- yhdc enthusiasts

## Why This Product

- Trusted yhdc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Flame-resistant UL94-V0 casing and wide temperature tolerance for harsh environments
- • **High Voltage Safety:** 2.5KV dielectric strength protects your system under stress
- • **Compact & Lightweight:** Only 72g, easy to integrate without bulk
- • **Speed Meets Efficiency:** Ultra-fast <3μs response time for real-time current monitoring
- • **Precision that Powers Your Projects:** 1% accuracy with <0.1% linearity ensures reliable data every time

## Overview

The Split Core Hall Current Sensor HST21 offers a robust 300A measurement range with 1% accuracy and ultra-fast response under 3 microseconds. Designed with UL94-V0 flame resistance and a wide operating temperature range (-10 to 70°C), it ensures durability and safety in demanding industrial environments. Its compact 72g form factor and high dielectric strength (2.5KV) make it an ideal choice for precise, reliable current sensing in professional applications.

## Description

desertcart.com: YHDC Split Core Hall Current Sensor HST21 300A/4V : Industrial & Scientific

Review: Excellent hall effect current sensor from Poland. - Works as advertised at an excellent price. Bought to monitor a inverter/charging system for an RV. I went with this hall effect sensor because I'm not a fan of big exposed shunts. I was planning to integrate it with an Arduino project. Seems reasonably accurate. It arrived in a timely manner. I was surprised it came from Poland. The manufacturer has a reasonable web site and they are OEM suppliers for industry heavy hitters like Siemens.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019SQU0EC |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Date First Available | June 16, 2016 |
| Is Discontinued By Manufacturer | No |
| Item model number | HST21-200A |
| Manufacturer | Dechang Electronic Co., Ltd |

## Images

![YHDC Split Core Hall Current Sensor HST21 300A/4V - Image 1](https://m.media-amazon.com/images/I/31I0tn7vOVL.jpg)
![YHDC Split Core Hall Current Sensor HST21 300A/4V - Image 2](https://m.media-amazon.com/images/I/71FcYl2vITL.jpg)
![YHDC Split Core Hall Current Sensor HST21 300A/4V - Image 3](https://m.media-amazon.com/images/I/41hUnW2cK0L.jpg)
![YHDC Split Core Hall Current Sensor HST21 300A/4V - Image 4](https://m.media-amazon.com/images/I/41DFzDw9R6L.jpg)
![YHDC Split Core Hall Current Sensor HST21 300A/4V - Image 5](https://m.media-amazon.com/images/I/41LAZuSagxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent hall effect current sensor from Poland.
*by E***. on December 9, 2019*

Works as advertised at an excellent price. Bought to monitor a inverter/charging system for an RV. I went with this hall effect sensor because I'm not a fan of big exposed shunts. I was planning to integrate it with an Arduino project. Seems reasonably accurate. It arrived in a timely manner. I was surprised it came from Poland. The manufacturer has a reasonable web site and they are OEM suppliers for industry heavy hitters like Siemens.

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**Shop now:** [https://www.desertcart.pt/products/111398780-yhdc-split-core-hall-current-sensor-hst21-300a-4v](https://www.desertcart.pt/products/111398780-yhdc-split-core-hall-current-sensor-hst21-300a-4v)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*