--- product_id: 2001521 title: "ACDelco 1/2\" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration" brand: "acdelco tools" price: "€ 91.49" currency: EUR in_stock: true reviews_count: 13 category: "Ac Delco Tools" url: https://www.desertcart.it/products/2001521-acdelco-1-2-heavy-duty-digital-torque-adapters-14-8 store_origin: IT region: Italy --- # 4 unit modes (N-m, kg-cm, ft-lb, in-lb) Smart audio alerts ±2% torque accuracy ACDelco 1/2" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration **Brand:** acdelco tools **Price:** € 91.49 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your torque game with precision and smart alerts — never miss the mark again! ## Quick Answers - **What is this?** ACDelco 1/2" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration by acdelco tools - **How much does it cost?** € 91.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/2001521-acdelco-1-2-heavy-duty-digital-torque-adapters-14-8) ## Best For - acdelco tools enthusiasts ## Why This Product - Trusted acdelco tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Intelligent Alerts:** Dual-stage buzzer warns at 90% and confirms at target torque to prevent overtightening. - • **Real-Time & Peak Modes:** Choose Trace Mode for live torque feedback or Peak Mode to capture max torque effortlessly. - • **Precision You Can Trust:** Professional-grade ±2% clockwise accuracy ensures flawless torque every time. - • **Usage Tracking & Memory:** Smart memory saves your settings and counts up to 999K torque events for ultimate tool management. - • **Customizable Measurement:** Seamlessly switch between four torque units to match your project needs. ## Overview The ARM602-4 digital torque adapter transforms any 1/2" ratchet wrench into a high-precision torque tool with ±2% accuracy clockwise and ±3% counter-clockwise. Featuring four selectable units, dual measuring modes, and intelligent audio alerts, it ensures professional-grade tightening with real-time feedback. Its smart memory retains settings after battery changes, and a usage counter tracks up to 999,000 torque events. Powered by two CR2032 batteries with auto power-off, this durable, lightweight adapter is ideal for professionals demanding accuracy and reliability. ## Description The ACDelco Brand has been around well over 100 years and its name has become synonymous with quality & reliability. ACDelco power tools are built for people who make a living with their tools, day in and day out, and require exceptional sturdiness and reliability. ACDelco offers the most complete line of digital torque wrenches and adapters for professionals who require high precision measurement on torque (ft-lbs./Nm) and angle degree for their job. Please use selection guides to choose the right digital torque wrench with right torque range for your application. FEATURES . Static torque measurement. Standard functions: torque setting, measurement setting, mode setting. Operation in both clockwise and counterclockwise directions. LCD display shows N-m (or kg-cm, in-lbs., ft-lbs.) measurements. Audible torque confirmation by means of buzzer Specifications - Model Number: ARM602-4 - Head Size: 1/2" - Torque Range: (14.8 to 147.6 ft-lbs.) - Tool Weight: 0.44 lbs. (0.2 kg) - Battery: 2-coin batteries (CR2032 - included) Review: Very useful! Feels like quality - I bought this based on all the existing recommendations. The Torque Test Channel sort-of-reviewed a competing digital torque gauge product from a no-name brand and said it was good; this ACDelco version was only a little more expensive and labeled with a recognized brand. I have confidence in the torque readings and they match my click-type torque wrench pretty closely. The unit itself feels pretty durable. Uses lithium coin-cell batteries, which is smart for cold-weather function. Can't speak to battery life as I just bought it. Review: A/C Torque Adapter - These torque adaptors work great and are accurate. I have one in two different toolboxes. The ½" Model I use the most as it torques up to ~150 lb/ft. I checked it against my Proto torque wrench and it is pretty accurate, within 1.5psi. Great tool. ## Features - Transform your standard ratchet wrench into a highly accurate digital torque tool. It delivers professional-grade accuracy of ±2% clockwise and ±3% counter-clockwise from 20% to 100% of full scale. You can easily switch between four different measuring units to suit your specific needs: N-m, kg-cm, ft-lb, and in-lb. - The adapter features two versatile measuring modes. Choose "Trace Mode" to view real-time torque readings as you apply force, or select "Peak Mode" which holds and displays the highest torque reading measured until you manually press the power button to clear it to zero. - Equipped with an intelligent audio alert system to ensure precise tightening. An intermittent buzzer will start sounding to warn you when you reach 90% of your preset target torque value. Once the target torque value is reached, a high-frequency buzzer will sound to alert you not to pull further. - The smart memory function automatically retains your last selected "mode" and "unit" settings, even after you replace the coin cell batteries. Additionally, it features a unique counter function that records the number of times the adapter has successfully reached the target torque (displays up to 999K times), allowing you to easily track the tool's usage history. - Designed for durability and efficiency, the LCD display will show "999" and a high-frequency buzzer will sound if the applied torque exceeds 120% of the maximum torque, protecting the tool from damage. Powered by two CR2032 coin cells, the device includes an Auto Power Off feature that shuts down automatically after 60 seconds of no use to preserve battery life. It is available in 3/8” (ARM602-3) or 1/2” (ARM602-4, ARM602-4A) square drives. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004VYURT0 | | Best Sellers Rank | #80,516 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Torque Gauges | | Brand | ACDelco Tools | | Brand Name | ACDelco Tools | | Color | Red | | Customer Reviews | 4.4 out of 5 stars 1,131 Reviews | | Finish Types | Polished | | Global Trade Identification Number | 04716872170715 | | Head Style | Box End | | Included Components | Digital Torque Adapter, Hard Shell Case | | Item Length | 1.75 Inches | | Item Package Quantity | 1 | | Item Torque | 147 Foot Pounds | | Item Type Name | 1/2" Digital Torque Adapter | | Item Weight | 0.01 Kilograms | | Manufacturer | Durofix Inc. | | Manufacturer Part Number | ARM602-4 | | Manufacturer Warranty Description | 1 Year Limited Warranty | | Material | Plastic | | Material Type | Plastic | | Measurement Standard | Metric, SAE | | Model Number | ARM602-4 | | Operation Mode | Electric | | Package Quantity | 1 | | UPC | 031111202304 072090493550 031113163047 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** ACDelco Tools - **Color:** Red - **Item Length:** 1.75 Inches - **Item Weight:** 0.01 Kilograms - **Material:** Plastic ## Images ![ACDelco 1/2" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration - Image 1](https://m.media-amazon.com/images/I/61SgL2FHBEL.jpg) ![ACDelco 1/2" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration - Image 2](https://m.media-amazon.com/images/I/61tVqtNTKKS.jpg) ![ACDelco 1/2" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration - Image 3](https://m.media-amazon.com/images/I/71rr8nE-qEL.jpg) ![ACDelco 1/2" Heavy Duty Digital Torque Adapters 14.8 to 147.6 ft-lbs with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration - Image 4](https://m.media-amazon.com/images/I/713GBDeW45L.jpg) ## Questions & Answers **Q: 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?** A: 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. **Q: Can I use it as a torque wrench?** A: Yes. As long as you have the room for it. A little clumsy for torque over 100 ft. lbs. **Q: The manual says the power button should not be pressed with torque applied. I accidentally did that. Will it cause accuracy problem?** A: 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. **Q: I don't see in specs the accuracy percentage?** A: 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%". ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very useful! Feels like quality *by T***Z on March 27, 2026* I bought this based on all the existing recommendations. The Torque Test Channel sort-of-reviewed a competing digital torque gauge product from a no-name brand and said it was good; this ACDelco version was only a little more expensive and labeled with a recognized brand. I have confidence in the torque readings and they match my click-type torque wrench pretty closely. The unit itself feels pretty durable. Uses lithium coin-cell batteries, which is smart for cold-weather function. Can't speak to battery life as I just bought it. ### ⭐⭐⭐⭐⭐ A/C Torque Adapter *by C***H on March 21, 2026* These torque adaptors work great and are accurate. I have one in two different toolboxes. The ½" Model I use the most as it torques up to ~150 lb/ft. I checked it against my Proto torque wrench and it is pretty accurate, within 1.5psi. Great tool. ### ⭐⭐⭐⭐ Accurate, easy to use, Operational range 15-147 (not 4-147) *by D***L on November 16, 2019* This seems to be a quality unit, and also seems quite accurate and easy to use. There are a couple of modes: TRACE (displays torque in real time), and PEAK (displays the highest torque after use). There is also an alarm feature, so you can dial in a desired torque, and you will get visual (lights) and audible (alarm) when the value is reached. You must be very careful to go slow and not torque beyond the set value (it won't stop you like a conventional clicker wrench). IMPORTANT: The operational AND alarm range is ~15 ft lbs to 147 ft lbs (20 Nm to 200 Nm). The packaging (and specs on the ad) report an operational range starting at 4 ft lbs (5 Nm), and an alarm range starting at 15 ft lbs. But that's an error. The older units worked this way, and would display lower toque values in Trace mode. But recently manufactured units will NOT display any value under about 15 ft. lbs. I talked to the manufacturer to confirm this is by design, and packaging has just not been updated. By the way, these are made by Durofix (in CA), and licensed by ACDelco. So if you need to measure lower torque values, get the 602-3 model (which will start at ~ 6 ft lbs). And if you are troubled that you cannot see these lower torque values, keep in mind it's probably not reliable even on the old units where you can. No torque wrench should be used in the bottom 10% of it's range... or at least, you should be aware that it will not be as reliable or accurate in this range. I purchased this to calibrate my own torque wrench more so than to use as an actual torque wrench, and it seems to work quite well in this capacity. I'm taking away one star just because of the confusion with the operational range.. they really should ensure that the unit is advertised and marked with the appropriate range. ## Frequently Bought Together - ACDelco 3/8” & 1/2" Heavy Duty Digital Torque Adapters with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration (1/2” (14.8 to 147.6 ft-lbs.)) - 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.it/products/2001521-acdelco-1-2-heavy-duty-digital-torque-adapters-14-8](https://www.desertcart.it/products/2001521-acdelco-1-2-heavy-duty-digital-torque-adapters-14-8) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-08*