---
product_id: 356576351
title: "Electronic Specialties - 309A Fuse Buddy Mini Kit - Improved,black"
brand: "es"
price: "$7.36"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/356576351-electronic-specialties-309a-fuse-buddy-mini-kit-improved-black
store_origin: EC
region: Ecuador
---

# Tests Micro, Mini & ATO fuses Measures up to 30 Amps with 0.1A resolution Improved adapters for tight fuse boxes Electronic Specialties - 309A Fuse Buddy Mini Kit - Improved,black

**Brand:** es
**Price:** $7.36
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose like a pro, fuse with confidence!

## Quick Answers

- **What is this?** Electronic Specialties - 309A Fuse Buddy Mini Kit - Improved,black by es
- **How much does it cost?** $7.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/356576351-electronic-specialties-309a-fuse-buddy-mini-kit-improved-black)

## Best For

- es enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Accessible:** New improved adapters fit snugly in tight fuse panels, no more wrestling with cramped spaces.
- • **Portable & Organized:** Includes a sleek storage pouch to keep your Fuse Buddy Mini Kit ready for action anywhere.
- • **Precision Amp Reading:** Accurately measures circuit amperage up to 30A with fine 0.1A resolution—diagnostics made easy.
- • **Plug & Play Simplicity:** Instantly plugs into fuse panels for real-time amp draw readings—speed up your troubleshooting workflow.
- • **Triple Fuse Compatibility:** Seamlessly tests Micro, Mini, and ATO fuse circuits for ultimate versatility.

## Overview

The Electronic Specialties 309A Fuse Buddy Mini Kit is a compact, precision tool designed for professional-grade electrical diagnostics. It supports testing of Micro, Mini, and ATO fuse circuits up to 30 amps with 0.1 amp resolution, featuring improved adapters for easy access in tight fuse boxes. Ideal for managers and technicians who demand quick, reliable circuit readings on the go.

## Description

Fuse Buddy Mini Kit plugs directly into the fuse panel. You see circuit amperage up to 30A, very handy for diagnostics and installations.

## Features

- New improved adapters allow better accessibility in tightly spaced fuse boxes
- Tests all three fuse sizes: Micro, Mini & ATO circuits
- Plug in Fuse Buddy and read circuit amp draws
- Easy test connection into fused circuits - Includes storage pouch
- Can be used on circuits up to 30 Amps - resolution 0. 1 Amps

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Electronic Specialties |
| Brand | ES |
| Model | Fuse Buddy |
| Product Dimensions | 7.62 x 3.81 x 2.54 cm; 159 g |
| Item model number | 309A |
| Manufacturer Part Number | 309A |
| Item Weight | 159 g |

## Product Details

- **AC adapter current:** 1 Amps
- **Brand:** ES
- **Item dimensions L x W x H:** 7.6 x 3.8 x 2.5 centimeters
- **Material:** Glass
- **Mounting type:** Through-Hole Mount

## Images

![Electronic Specialties - 309A Fuse Buddy Mini Kit - Improved,black - Image 1](https://m.media-amazon.com/images/I/51q74SQg21S.jpg)

## Questions & Answers

**Q: How does this compare to the 310 model?**
A: 310 has 30 Amp clips allowing it to be used as a portable amp meter.  Further, the head unit has upgraded display with analog bargraph and data hold.  310 does not have an adapter for the new micro fuses, we are currently working on that.

**Q: Is the probe fused to protect the meter?**
A: You remove the car fuse and plqce it in the tester’s receptacle.  The car fuse protects any overload.

**Q: Is 0.1A resolution,  that would be 1.2W, fine enough to find a power leak that takes days to drain a battery?**
A: Maximum allowable draw is usually 0.050 amps or 50 ma. So this tester would help if your battery went dead overnight possibly but not for anything that takes days. 

Now for the reason I like it. If you're adding accessories to a vehicle, you can use it to calculate startup loads and running loads to appropriately size wiring and fuses. For this reason I recommend it.

**Q: What kind of battery do you need? Is it a standard size? Do you also sell the batteries if they are not standard sized ones?**
A: A23 battery, readily available.  Here's a listing for sale on Amazon.  https://www.amazon.com/Energizer-Mercury-Alkaline-Batteries-Packaging/dp/B00004YK10?th=1

## Frequently Bought Together

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-24*