SMARTGEN
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HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface
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HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface
HEM4000 ENGINE CONTROLLER provides speed regulation, LCD display with multilingual interface, USB/RS485 ports for parameter setting, and high reliability for various engine control systems.
HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface
Item #: 86518406

HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface

84% of respondents would recommend this to a friend

Item #: 86518406

GBP 326

Price Details

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*All items will import from US

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Order now and get it around Sunday, October 25
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HEM4000 ENGINE CONTROLLER provides speed regulation, LCD display with multilingual interface, USB/RS485 ports for parameter setting, and high reliability for various engine control systems.
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What Stands Out

Precision Control
The HEM4000 offers precise speed regulation outputs, ensuring optimal engine performance and efficiency, which addresses common issues in traditional controllers.
RS485 Connectivity
Equipped with an RS485 interface, the HEM4000 allows for seamless data communication and integration with various systems, enhancing versatility and usability.
Reliable Relay Output
Utilizing robust relay output technology, the HEM4000 guarantees long-lasting performance and minimal downtime, providing exceptional value for both industrial and automotive applications.

Product Details

Shop HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface online at a best price in Jersey. B0CH83FYD2
Brand NameSMARTGEN
ManufacturerSMARTGEN
Part NumberHEM4000
Material TypeCopper
Item Weight0.35 kg
BrandSMARTGEN
MaterialCopper

Who Should Buy?

Suitable For
  • Automotive Technicians

    This product is ideal for automotive technicians seeking precise speed regulation and control for engine management systems.

  • Custom Engine Builders

    Custom engine builders will benefit from its flexibility in controlling various types of engine setups with RS485 communication.

  • Industrial Automation Experts

    Experts in industrial automation will find this controller useful for managing engine functions in automated settings.

Not Suitable For
  • Casual Users

    Casual users may find the complexity overwhelming and not suited for basic engine applications without technical expertise.

Product Description

HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface

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Customer Questions & Answers

  • Question: What is the HEM4000 Engine Controller used for?

    Answer: The HEM4000 Engine Controller is designed for advanced engine management systems, providing precise control over various vehicle functions. It regulates speed, monitors performance, and enhances overall engine efficiency. Users can utilize it in custom automotive projects, industrial applications, or any scenario that requires robust engine management and communication capabilities.
  • Question: How does the RS485 interface in the HEM4000 work?

    Answer: The RS485 interface in the HEM4000 facilitates communication between multiple devices over long distances. It enables reliable data transmission in noisy environments, making it ideal for industrial settings. Users can connect the controller to sensors, other controllers, or monitoring systems, ensuring seamless integration for comprehensive engine management and telemetry.
  • Question: Can the HEM4000 be used for both gas and diesel engines?

    Answer: Yes, the HEM4000 Engine Controller is versatile and can be used with both gas and diesel engines. Its adaptable programming allows it to fine-tune engine performance for different fuel types, optimizing efficiency and power output. This flexibility makes it suitable for a wide range of automotive and machinery applications.
  • Question: What troubleshooting features does the HEM4000 offer?

    Answer: The HEM4000 comes equipped with comprehensive diagnostics features, allowing users to identify and troubleshoot issues effectively. It can monitor engine parameters, detect fault codes, and provide real-time data. This assists technicians and DIY enthusiasts in pinpointing problems swiftly, ensuring optimal engine performance.
  • Question: Is the HEM4000 Engine Controller easy to install?

    Answer: Installing the HEM4000 Engine Controller typically requires some technical knowledge, as it involves connecting various sensors and wiring. The controller often comes with a detailed installation guide, which, when followed, can simplify the process. Users who are comfortable with automotive electronics will find the installation manageable, allowing them to customize their engine setups.
  • Question: What types of sensors can be connected to the HEM4000?

    Answer: The HEM4000 Engine Controller is compatible with a variety of sensors, including temperature, pressure, and RPM sensors. This versatility allows users to tailor the engine management system to specific needs, ensuring accurate readings and enhanced control over engine performance parameters in various applications.
  • Question: Does the HEM4000 offer real-time data logging?

    Answer: Yes, one of the prominent features of the HEM4000 is its capability for real-time data logging. This functionality allows users to collect and analyze engine performance data continuously, which is essential for performance tuning, diagnostics, and monitoring the effectiveness of modifications made to the engine setup.
  • Question: How does the Relay Speed Regulation output function?

    Answer: The Relay Speed Regulation output in the HEM4000 allows you to control additional devices based on the engine's speed. This feature can be utilized to manage cooling fans, alarms, or other systems that need to be activated at specific RPM levels. It enhances the controller's functionality and makes it an essential tool for customized engine management.
  • Question: What applications is the HEM4000 suitable for?

    Answer: The HEM4000 is suitable for various applications, including automotive tuning, industrial machinery control, and custom engine builds. Its advanced control features and versatile interfaces enable users to apply it in settings such as motorsports, agricultural vehicles, and commercial equipment, where precise engine regulation is critical.
  • Question: Where can I buy the HEM4000 Engine Controller in Jersey?

    Answer: You can purchase the HEM4000 Engine Controller, Relay Speed Regulation Output+RS485 Interface from Ubuy in Jersey. Ubuy offers a range of products, and you can find the HEM4000 along with other electronics, making it a convenient option for your shopping needs.

SMARTGEN Electric Speed Controllers Editorial Review

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Pros

  • Highly accurate speed regulation
  • RS485 interface for easy communication
  • Robust and durable design
  • Compatible with various engines
  • User-friendly setup and operation

Cons

  • Occasional software glitches

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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Anke
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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GBP 326

Order now and get it around Sunday, October 25

QTY:

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Features & Benefits

  • Speed regulation and GOV interface for controlling non-EFI engines
  • Large LCD display with Chinese and English interface options
  • USB and RS485 ports for setting and monitoring parameters
  • High reliability and simple connections for wide applicability
  • Supports remote controlling, measuring, and communication via ModBus protocol
  • Multiple analog and fixed resistor sensors for flexible configurations

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