I see reviewers make reference to audible warning. Does that mean it provdes an increasing tempo of beeps as you approach the torque you've set?

The beep will increase temp as it reaches the target torque limit. Once it is reached, it will provide a constant beep sound to notify it has reached.

Can I use it as a torque wrench?

Yes. As long as you have the room for it. A little clumsy for torque over 100 ft. lbs.

The manual says the power button should not be pressed with torque applied. I accidentally did that. Will it cause accuracy problem?

I am pretty sure that the device on start up takes a reading from the strain gauge in the device and whatever that reading is defines that value as zero torque applied. Same thing with digital scales in the kitchen, on startup they determine what zero mass/weight is. Whatever reading/torqued applied will be wrong, if a load was applied on startup.Once off power the device on with no load and I believe you will be in business again.

I don't see in specs the accuracy percentage?

Here is the ACDelco page for this Torque adapter: http://www.acdelco-tools.com/index.php?route=product/product&product_id=132It says "Accuracy CW ± 2%; CCW ± 3%".

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ACDelco ARM602-4 1/2" Digital Torque Adapter (4-147.6 ft-lbs) with Audible Alert

ACDelco ARM602-4 1/2" Digital Torque Adapter (4-147.6 ft-lbs) with Audible Alert

Product ID: 729947641

Details

Brand
ACDelco Tools
Color
red
Item Length
0.5 Inches
Item Weight
0.01 Kilograms
Material
Plastic

📟Clear LCD with multi-unit display

🔔Audible torque confirmation buzzer

⚙️4-147.6 ft-lbs torque range

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€ 181.33

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Elevate your torque game—precision you can hear and trust!

COMPACT READY - Lightweight 0.5-inch adapter powered by included batteries, ready for on-the-go professionals.
UNIVERSAL UNITS - Instantly switch between Nm, kg-cm, in-lb, and ft-lb for global accuracy.
AUDIBLE ASSURANCE - Buzzer alerts you the moment your torque target is hit—never second guess your work.
PRECISION PERFECTED - Transforms any ratchet into a digital torque powerhouse for flawless bolt tightening.
MULTI DIRECTIONAL MASTERY - Operates seamlessly clockwise and counterclockwise with intuitive mode settings.

The ACDelco ARM602-4 Digital Torque Adapter converts any 1/2" ratchet wrench into a precise digital torque wrench with a range of 4 to 147.6 ft-lbs. Featuring an easy-to-read LCD display with multiple unit options and an audible buzzer for torque confirmation, it supports both clockwise and counterclockwise operation. Compact and lightweight, it includes two CR2032 batteries and is designed for professionals demanding accuracy and efficiency.

Specifications

ASIN	B004VYURT0
Brand	ACDelco Tools
Brand Name	ACDelco Tools
Color	red
Customer Reviews	4.5 out of 5 stars 1,091 Your Review
Global Trade Identification Number	04716872170715
Head Style	Square Drive
Item Length	0.5 Inches
Item Package Quantity	1
Item Weight	0.01 Kilograms
Manufacturer Part Number	ARM602-4
Material	Plastic
Material Type	Plastic
Model Number	ARM602-4
Package Quantity	1
UPC	031111202304 072090493550 031113163047
Unit Count	1.0 Count

Reviews

M**L

Buen producto

Si funciona correctamente, buen producto.

23.06.2025

A**D

This ad is innaccuate. The minimum setting for this product is 14.8 ft p or 20nm - Not 4 ft

3.05.2020

P**Y

Great device.

14.08.2014

T**Z

Very useful! Feels like quality

27.03.2026

A**R

Very good

18.10.2018

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