--- product_id: 549295238 title: "CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee" brand: "cmtool" price: "40.93 DT" currency: TND in_stock: false reviews_count: 9 url: https://www.desertcart.tn/products/549295238-cmtool-vacuum-gauge-hvac-digital-micron-gauge-hvac-micron-vacuum store_origin: TN region: Tunisia --- # ±0.1% accuracy 9V battery included 0-100KPa range CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee **Brand:** cmtool **Price:** 40.93 DT **Availability:** ❌ Out of Stock ## Summary > 🔧 Elevate Your HVAC Game with Precision and Ease! ## Quick Answers - **What is this?** CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee by cmtool - **How much does it cost?** 40.93 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/549295238-cmtool-vacuum-gauge-hvac-digital-micron-gauge-hvac-micron-vacuum) ## Best For - cmtool enthusiasts ## Why This Product - Trusted cmtool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reliable:** IP54 dustproof design for all your field testing needs. - • **Robust Calibration:** Ensure accuracy with a simple calibration function. - • **Precision Monitoring:** Stay ahead with real-time pressure alerts! - • **User-Friendly Design:** Large backlit display for easy reading in any light. - • **Versatile Measurement:** Supports 13 pressure units for ultimate flexibility. ## Overview The CMTOOL Vacuum Gauge is a high-precision digital micron gauge designed for HVAC professionals. It features a measuring range of 0-100KPa with an accuracy of ±0.1% and supports 13 different pressure units. The device includes a calibration function, a large backlit display, and a durable, non-slip design, making it ideal for field tests. The kit comes complete with essential accessories and a 3-year warranty, ensuring reliability and performance in all your vacuum measurement tasks. ## Description Professional Digital Vacuum Gauge - This digital vacuum gauge adopts professional high precision micron vacuum sensor, It can quickly and accurately measure small changes in pressure in a vacuum. Review: Can confirm this thing is junk - I risked it despite some negative reviews and I can confirm this thing is garbage. It either reads wild settings, or most of the time even under mild vacuum it just reads zero. Not worth the money, and definitely not worth the wasted time in even trying it. Spend the money on a good one like I should have and will end up doing now anyways. Review: Worked perfectly in microns - The pump took about 10 minutes to get my recovery tank down to 290 microns. Would have been less but I discovered I didn't seat the adapter seal well enough on the gauge side so there was a small leak causing the process to take longer. Thank was user error on my part though. The gauge performed very well throughout. It does not measure any positive pressure though so you'll need another gauge if you want to store your tank with some minimum positive pressure to measure that. ## Features - NOTE: (1) When using the product, you must use the sealing gasket included in the package to prevent gas leakage. (2) Use the calibration function to calibrate the product before each measurement. Note: Failure to calibrate will affect the measurement results. (3) When the gas change is not obvious, wait for 1-2 minutes. If there is no change in the measurement data, it means the gas tends to be stable and is in a vacuum state. - 1.【Monitoring Mode & Sound and Light Alarm】When the micron vacuum gauge is turned on, it defaults to normal mode, short press the "SET" button to enter the monitoring mode. If the current pressure is lower than the set pressure, the backlight of the HVAC vacuum gauge will flash and the buzzer will sound continuously. When the pressure is greater than the set pressure, the alarm will disappear automatically (press any key or the alarm can be automatically disarmed after 30 seconds). - 2.【High Precision Sensor & 13 Pressure Units】The micron vacuum gauge uses a professional micron-level sensor for more accurate measurement. Measuring range: 0-100KPa/14.50Psi/750061umHg (micron), resolution: 0.001Kpa/1umHg, accuracy: ±0.1%FS. The HVAC micron vacuum gauge supports 13 units: mmHg, inHg, umHg, ftH2O, cmH2O, inH2O, Pa, Kpa, mbar, bar, Kg/cm², psi, oz/in². - 3.【Calibration Function & Battery Level Display & Non-Slip Design】By long pressing the "CAL" button, the micron vacuum gauge enters the calibration mode and exits automatically after completion. Powered by a 9V battery (included in the package), the battery frame on the screen will display the battery level. Both sides are designed with non-slip rubber, which is non-slip and comfortable to hold. The digital vacuum gauge adopts IP54 dustproof level, which is suitable for various field tests. - 4.【Large Display Supports Backlight & ℃/℉ Switching】The 4.2CM×4.8CM high-definition display screen supports LCD backlight, which can display clear data even in dark or weak light conditions. When the digital micron vacuum gauge is turned on, short press the "ON/OFF" button to turn on and off the backlight. “UNITS” button: short press to switch pressure units, long press to switch temperature units. - 5.【Wide Application】The micron gauge is used to accurately measure small pressure changes in a vacuum, usually used in conjunction with vacuum pumps and refrigerant gauges, allowing you to monitor the vacuum evacuation process in precision cooling systems and heat pumps. The digital vacuum gauge can also read the real-time pressure during the evacuation of the refrigeration system to help you judge the degree of moisture removal and elimination of contaminants such as oil and external gases. - 6.【Packing List and 3-Year Warranty】The digital micron vacuum gauge kit includes a vacuum gauge (built-in 9v battery), a 1/4" SAE extension straight joint, a 1/4" SAE tee joint, an English user manual and a portable carrying bag. We offer a free 36-month warranty on this micron vacuum gauge kit to ensure your shopping experience. If you have any questions about this micron gauge HVAC kit, please feel free to contact us and we will provide you with a satisfactory solution as soon as possible. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C1S83NLZ | | Brand | CMTOOL | | Brand Name | CMTOOL | | Customer Reviews | 2.8 out of 5 stars 45 Reviews | | Included Components | Micron Vacuum Gauge, 2Pcs 1/4'' Quick Couplers, User Manual | | Item Dimensions | 7.87 x 5.91 x 1.97 inches | | Item Weight | 400 g | | Item dimensions L x W x H | 7.87 x 5.91 x 1.97 inches | | Manufacturer | CMTOOL | | Material | Acrylonitrile Butadiene Styrene (ABS) | | Material Type | Acrylonitrile Butadiene Styrene (ABS) | | Model | AQ-74 | | Number of Items | 1 | | Part Number | AQ-74 | | Thread Style | Unf | | Thread Type | Unf | | UPC | 728990666081 | ## Images ![CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee - Image 1](https://m.media-amazon.com/images/I/61q-JmitnCL.jpg) ![CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee - Image 2](https://m.media-amazon.com/images/I/71BrNc2pSDL.jpg) ![CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee - Image 3](https://m.media-amazon.com/images/I/71t8D8wct-L.jpg) ![CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee - Image 4](https://m.media-amazon.com/images/I/71qjS6+ykOL.jpg) ![CMTOOL Vacuum Gauge HVAC Digital Micron Gauge HVAC Micron Vacuum Gauge Tester 100KPa/750061Microns Digital Vacuum Micron Meter Set 13 Units AC Tool Vacuum Test Kit with 1/4'' Quick Coupler Access Tee - Image 5](https://m.media-amazon.com/images/I/71B50gF+eKL.jpg) ## Customer Reviews ### ⭐ Can confirm this thing is junk *by M***Z on December 14, 2023* I risked it despite some negative reviews and I can confirm this thing is garbage. It either reads wild settings, or most of the time even under mild vacuum it just reads zero. Not worth the money, and definitely not worth the wasted time in even trying it. Spend the money on a good one like I should have and will end up doing now anyways. ### ⭐⭐⭐⭐⭐ Worked perfectly in microns *by J***N on September 11, 2023* The pump took about 10 minutes to get my recovery tank down to 290 microns. Would have been less but I discovered I didn't seat the adapter seal well enough on the gauge side so there was a small leak causing the process to take longer. Thank was user error on my part though. The gauge performed very well throughout. It does not measure any positive pressure though so you'll need another gauge if you want to store your tank with some minimum positive pressure to measure that. ### ⭐ Not accurate *by M***A on May 4, 2024* I got this to test the levels of vacuum on a pump. But as soon as I turned the pump on, it went to zero in 1 sec. No pump for $100 can obtain a zero level in 1 sec. Sorry but this is not a accurate device for measurement. --- ## 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.tn/products/549295238-cmtool-vacuum-gauge-hvac-digital-micron-gauge-hvac-micron-vacuum](https://www.desertcart.tn/products/549295238-cmtool-vacuum-gauge-hvac-digital-micron-gauge-hvac-micron-vacuum) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-21*