---
product_id: 265864542
title: "ARM302-4S 1/2\" Electronic Digital Torque Adapter, 12.5-250.7 ft-lbs, Buzzer/LED Flash Notification - ISO 6789 Standards Certificate of Calibration"
brand: "acdelco"
price: "A$297"
currency: AUD
in_stock: true
reviews_count: 5
category: "Ac Delco"
url: https://www.desertcart.com.au/products/265864542-arm302-4s-1-2-electronic-digital-torque-adapter-12-5
store_origin: AU
region: Australia
---

# LED & buzzer torque alerts Stores up to 30 torque data sets 12.5-250.7 ft-lbs torque range ARM302-4S 1/2" Electronic Digital Torque Adapter, 12.5-250.7 ft-lbs, Buzzer/LED Flash Notification - ISO 6789 Standards Certificate of Calibration

**Brand:** acdelco
**Price:** A$297
**Availability:** ✅ In Stock

## Summary

> ⚡ Torque Smarter, Not Harder — Precision That Pops!

## Quick Answers

- **What is this?** ARM302-4S 1/2" Electronic Digital Torque Adapter, 12.5-250.7 ft-lbs, Buzzer/LED Flash Notification - ISO 6789 Standards Certificate of Calibration by acdelco
- **How much does it cost?** A$297 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/265864542-arm302-4s-1-2-electronic-digital-torque-adapter-12-5)

## Best For

- acdelco enthusiasts

## Why This Product

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

## Key Features

- • **Certified Reliability:** ISO 6789 calibration certificate ensures professional-grade accuracy you can trust.
- • **Data-Driven Decisions:** Memory stores 30 torque readings so you can track, verify, and optimize every job.
- • **Instant Torque Alerts:** Dual LED flashes and buzzer sound confirm exact torque achievement—never second guess your work.
- • **Precision Meets Power:** Wide 12.5-250.7 ft-lbs range covers all your torque needs with ±1.5% accuracy clockwise.
- • **Universal Compatibility:** Transforms any 1/2" ratchet wrench into a smart digital torque tool for versatile use.

## Overview

The ACDelco ARM302-4S is a professional-grade 1/2" electronic digital torque adapter offering a broad torque range of 12.5 to 250.7 ft-lbs with ±1.5% accuracy. Featuring dual LED and buzzer alerts, it ensures precise torque application and stores up to 30 data sets for tracking. Certified to ISO 6789 standards with a calibration certificate, it converts any ratchet wrench into a smart torque tool, making it indispensable for millennial pros demanding reliability and efficiency.

## Description

ACDelco ARM302-4S 1/2-inch drive digital torque adaptor provides torque setting range of 12.5-250.7 ft.Lbs. Memory capacity can store up to 30 sets of data. 2 LEDs flashing (Green & red) for visual alert, and audible torque confirmation by means of Buzzer. Allows to operate at 14 F degree to 140 F degree. Operation in both clockwise and counter-clockwise directions. Accuracy CW +-1.5%; CCW +- 2.5%. LCD display shows N-M (or kg-cm, In-lb., ft-lb) measurements. Turns a ratchet wrench into a digital torque wrench. Static torque measurement standard functions: torque setting, measurement setting, mode setting. [ACDelco Tools] ACDelco power tools are built for people who make a living with their tools, day in and day out, regardless of industry you are in and require reliability.

Review: Works great - I had no problems with battery life as stated in other reviews. it is super accurate and connects right to a breaker bar or socket wrench. I've used it so far to torque a head, water pump, crank pulley (147 ft/lbs), and engine mounts. Zero complaints so far and I think it's a worthwhile purchase. It even comes with a case, which is nice because dropping any torque wrench can wreck it's accuracy. It starts reading at about 12/13 ft/lbs, so if you need less than that buy an in/lbs torque tool instead.
Review: Great small digital torque adapter. - Small, accurate and with a good range of torque settings, were the reasons for choosing this digital torque wrench, and from a British company.

## Features

- 12.5 to 250.7 foot pounds wide torque range with LED flashing / buzzer alarm when torque is reached. Easy to read LCD display with measurements (kg-cm, N-m, in-lb. ft-lb)
- Multiple Setting Functions: Torque, Measurement, and, Peak & Trace, Mode Settings. (Torque setting range: 10% of max torque value. Measuring range: 4 to 99 ft-lbs.)
- The product quality meets or exceeds ASME B107.14-2004, ISO 6789 standards, individually serialized with matching certificate of calibration traceable to N.I.S.T.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GKK7DNA |
| Best Sellers Rank | #187,407 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #441 in Torque Wrenches |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Color | Red |
| Colour | Red |
| Customer Reviews | 4.3 out of 5 stars 107 Reviews |
| Finish Types | Polished |
| Global Trade Identification Number | 04716872175826 |
| Head Style | Fixed Square |
| Head style | Fixed Square |
| Included Components | Tool, Calibration Certification, User Maunal, Metal Case. |
| Item Torque | 250.7 Foot Pounds |
| Item Type Name | ACDelco ARM302-4S 1/2-inch Electronic Digital Torque Adapter, 12.5-250.7 ft-lbs, Buzzer & Flasing Notification |
| Item Weight | 499 g |
| Item package quantity | 1 |
| Item weight | 499 g |
| Manufacturer | Durofix |
| Manufacturer Part Number | ARM302-4S |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Measurement Standard | Metric, SAE |
| Model Number | ARM302-4S |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operation Mode | Electric |
| Package Quantity | 1 |
| Set Name | 30 |
| Unit Count | 1 Count |

## Product Details

- **Color:** Silver
- **Brand:** ACDelco Tools
- **Material:** Alloy Steel
- **Item Length:** 7.6 Centimeters
- **Item Weight:** 1.1 Pounds

## Images

![ARM302-4S 1/2" Electronic Digital Torque Adapter, 12.5-250.7 ft-lbs, Buzzer/LED Flash Notification - ISO 6789 Standards Certificate of Calibration - Image 1](https://m.media-amazon.com/images/I/61r2uEfWh2L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by K***A on 30 March 2020*

I had no problems with battery life as stated in other reviews. it is super accurate and connects right to a breaker bar or socket wrench. I've used it so far to torque a head, water pump, crank pulley (147 ft/lbs), and engine mounts. Zero complaints so far and I think it's a worthwhile purchase. It even comes with a case, which is nice because dropping any torque wrench can wreck it's accuracy. It starts reading at about 12/13 ft/lbs, so if you need less than that buy an in/lbs torque tool instead.

### ⭐⭐⭐⭐⭐ Great small digital torque adapter.
*by M***D on 26 December 2025*

Small, accurate and with a good range of torque settings, were the reasons for choosing this digital torque wrench, and from a British company.

### ⭐⭐⭐⭐⭐ bonne qualité
*by A***N on 19 December 2020*

Facile à utiliser ,

## Frequently Bought Together

- ACDelco Tools ARM302-4S 1/2 Inch Digital Torque Wrench with Buzzer and LED Flash Notification - ISO 6789 Standards with Certificate of Calibration
- NEIKO 30249A 5 Piece Impact Socket Adapter Set, Standard SAE, 1/4, 3/8, 1/2" Cr-V Steel Impact Driver & Wrench Conversion Kit Socket Reducer, Locking Socket Adapter Set

---

## 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.com.au/products/265864542-arm302-4s-1-2-electronic-digital-torque-adapter-12-5](https://www.desertcart.com.au/products/265864542-arm302-4s-1-2-electronic-digital-torque-adapter-12-5)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-09-13*