---
product_id: 83778552
title: "SMARTGEN HGM420N Automatic Start Generator Controller (AMF)"
brand: "laseto"
price: "€ 498.08"
currency: EUR
in_stock: true
reviews_count: 2
category: "Laseto"
url: https://www.desertcart.at/products/83778552-smartgen-hgm420n-automatic-start-generator-controller-amf
store_origin: AT
region: Austria
---

# Automatic Start/Stop 1-3 Phase Compatibility Built-in Protection SMARTGEN HGM420N Automatic Start Generator Controller (AMF)

**Brand:** laseto
**Price:** € 498.08
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Peace of Mind!

## Quick Answers

- **What is this?** SMARTGEN HGM420N Automatic Start Generator Controller (AMF) by laseto
- **How much does it cost?** € 498.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/83778552-smartgen-hgm420n-automatic-start-generator-controller-amf)

## Best For

- laseto enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Performance:** Survives cranking dropouts, ensuring your generator is always ready when you need it.
- • **User-Friendly Design:** Front panel mounting ensures easy access and operation for all users.
- • **Versatile Compatibility:** Designed for both gasoline and diesel gensets, catering to diverse energy needs.
- • **Seamless Power Management:** Experience uninterrupted power with automatic start/stop functionality.
- • **Comprehensive Safety Alerts:** Built-in alarms and warnings provide peace of mind and protect your investment.

## Overview

The SMARTGEN HGM420N Automatic Start Generator Controller is a cost-effective solution for managing generator operations. It is compatible with 1-3 phase gasoline and diesel generators, features a user-friendly front panel design, and includes essential protection mechanisms with built-in alarms and warnings.

## Description

HGM400N series genset controllers integrate digitization, intelligentization and network technology which are used for genset automation and monitor control system of single unit to achieve automatic start/stop, data measurement, alarm protection and вЂњthree remoteвЂќ (remote control, remote measuring and remote communication; SG485 module must be fitted). It fit with LCD display, optional languages interface (Chinese, English, Spanish, Turkish, Russian and French), and it is reliable and easy to use. HGM400N series genset controllers adopt micro-processor technology with precision parameters measuring, fixed value adjustment, time setting and set value adjusting and etc. All parameters can be configured from front panel or through USB interface by using PC. It can be widely used in all types of automatic genset control system with compact structure, advanced circuits, simple connections and high reliability. PERFORMANCE AND CHARACTERISTICS:HGM400N series controller has two types:HGM410N: ASM (Automatic Start Module)пјЊit controls generator to start/stop by remote signal;HGM420N: AMF (Auto Mains Failure), updates based on HGM410N, moreover, has mains electric quantity monitoring and mains/generator automatic transfer control function, especially for automatic system composed by generator and mains.1. 132x64 LCD with backlight, selectable language interface (Chinese, English, Spanish, Turkish, Russian and French), push-button operation;2. Improved LCD wear-resistance and scratch resistance due to hard screen acrylic;3. Silicon panel and pushbuttons for better operation in high/low temperature environment;4. Suitable for 3-phase 4-wire, 3-phase 3-wire, single phase 2-wire, and 2-phase 3-wire systems with voltage 120/240V and frequency 50/60Hz;5. Collects and shows 3-phase voltage, current, power parameter and frequency of generator or mains.6. For Mains, controller has over voltage, under voltage and loss of phase detection functions; For generator, controller has ov

Review: all ok - all ok
Review: Decides to just…break? - Had this all set to run my Perkins diesel generator once a week for 15 minutes. Worked great for just about a year, and now the panel is completely unresponsive for some unknown reason. Panel background lights up green, but no buttons will respond and no text is displayed on the screen. Customer support over the phone literally asks you to EMAIL them and they respond every 3-4 days. Beyond frustrated with this company and probably am just going to buy a whole new panel from someone else at this point, as even IF I can get this working again (seems unlikely) it was a nightmare to setup the first time.

## Features

- Low cost AMF controller designed to start/stop a generator automatically
- Suitable for 1-3 phase gasoline and diesel gensets
- Designed for front panel mounting
- Survives cranking dropouts
- Generator protection, built-in alarms and warnings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0771NHSCG |
| Additional Features | Remote Control, Advanced Safety Features |
| Best Sellers Rank | #1,339,601 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #184 in Power Take Off Generators |
| Brand | LASETO |
| Brand Name | LASETO |
| Color | Black |
| Customer Reviews | 4.0 out of 5 stars 6 Reviews |
| Engine Displacement | 418 Cubic Centimeters |
| Engine Type | 4 Stroke |
| Frequency | 60 Hz |
| Fuel Type | Diesel, Gasoline |
| Ignition System Type | Electronic |
| Included Components | Controller, SG485 module, LCD display |
| Item Weight | 0.42 Kilograms |
| Manufacturer | SMARTGEN |
| Manufacturer Part Number | B0771NHSCG |
| Material Type | Plastic |
| Model Name | HGM420N |
| Model Number | HGM420N |
| Power Source | Fuel Powered |
| Recommended Uses For Product | Commercial |
| Voltage | 240 Volts |
| Wattage | 400 watts |

## Product Details

- **Brand:** LASETO
- **Wattage:** 400 watts
- **Fuel Type:** Diesel, Gasoline
- **Power Source:** Fuel Powered
- **Recommended Uses For Product:** Commercial
- **Item Weight:** 0.42 Kilograms
- **Voltage:** 240 Volts
- **Special Feature:** Remote Control, Advanced Safety Features
- **Included Components:** Controller, SG485 module, LCD display
- **Color:** Black

## Images

![SMARTGEN HGM420N Automatic Start Generator Controller (AMF) - Image 1](https://m.media-amazon.com/images/I/619qzrsiWUL.jpg)
![SMARTGEN HGM420N Automatic Start Generator Controller (AMF) - Image 2](https://m.media-amazon.com/images/I/71N0IagOUaL.jpg)
![SMARTGEN HGM420N Automatic Start Generator Controller (AMF) - Image 3](https://m.media-amazon.com/images/I/61C3VRIASZL.jpg)

## Questions & Answers

**Q: Re: the hgm420n, can the auto start on mains abnormal be inhibited so it can work as a 2 wire remote start installation?**
A: Yes. The HGM420N model can be controlled via the remote start input or the front panel buttons as well.

**Q: I have an off grid solar system. Can this unit be programmed to auto turn on the generator when the solar batteries run down to a certain level?**
A: Unfortunately, this controller does not monitor the battery bank voltage.
You can check this controller instead:
SmartGen HGM4020T Mobile communication base station + dual power ATS+RS485
https://www.amazon.com/SmartGen-HGM4020T-Mobile-communication-station/dp/B07GH5HNV6

**Q: This product ships from?   hgm400n series**
A: Currently we are shipping this item from our stock in Europe.

**Q: will this detect a power outage?**
A: Yes. This controller detects power outages, start generator and switches load circuits to be powered from generator. When the grid comes back, it switches load circuits back and stops generator. All necessary delay settings could be configured.

## Customer Reviews

### ⭐⭐⭐⭐⭐ all ok
*by P***A on February 21, 2025*

all ok

### ⭐ Decides to just…break?
*by A***9 on August 5, 2023*

Had this all set to run my Perkins diesel generator once a week for 15 minutes. Worked great for just about a year, and now the panel is completely unresponsive for some unknown reason. Panel background lights up green, but no buttons will respond and no text is displayed on the screen. Customer support over the phone literally asks you to EMAIL them and they respond every 3-4 days. Beyond frustrated with this company and probably am just going to buy a whole new panel from someone else at this point, as even IF I can get this working again (seems unlikely) it was a nightmare to setup the first time.

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-06-03*