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Description
MAJ MT21DMM Data Hold AC DC 600V CAT 111 DMM Data Hold AC DC 600V CAT 111 Overview The MT21 is a 600 AC DC Voltage Compact Multimeter with double moulded rubber housing and meets the International Standard IEC 61010 1 CAT lll 600V. The large LCD display screen has a white backlight for use in arduous areas. It is a very economical tester ideally suited for everyday use by electricians, electronic technicians as well as the air conditioning industry. The MT21
DMM Data Hold AC/DC 600V CAT 111
DMM Data Hold AC/DC 600V CAT 111
Overview
The MT21 is a 600 AC/DC Voltage Compact Multimeter with double moulded rubber housing and meets the International Standard IEC-61010-1 CAT lll 600V. The large LCD display screen has a white backlight for use in arduous areas. It is a very economical tester ideally suited for everyday use by electricians, electronic technicians as well as the air conditioning industry. The MT21 is a basic 2000 count multimeter and is designed to efficiently support the first level electronic and electrical trouble shooting. The meter measures AC and DC voltage to 600V, resistance to 2000 ohms, and DC current to 10A, plus has a diode test function and a continuity buzzer. An added function of the MT21 is the battery test ranges, which test 1,5V and 9V batteries with a load.
Features
- 600V AC/DC Voltage
- 10A DC Current
- Resistance to 2000k
- Battery Test 1.5V & 9V Batteries
- 2000 Count LCD Display
- Overmould Rubber Housing
- Integrated Test Lead Holder
Accessories:
- 9V Battery
- Test Leads
- Instruction Manual
Specifications
| Function | Range | Resolution | Accuracy |
| DC voltage | 200mV - 600V | 0.1mV | ± (0.8% + 2 Digits) |
| AC voltage | 200V - 600V | 0.1mV | ± (1.2% + 10 Digits) |
| DC Current | 2000μA - 10A | 1mA | ± (2.5% + 5 Digits) |
| Resistance | 200Ω - 2000kΩ | 0.1Ω | ± (1.0% + 2 Digits) |
| Pulse Width |  | 10mV | ± (1.0% + 2 Digits) |
| AC Bandwidth | 45Hz to 450Hz | ||
| Digital display | 2000 | ||
| Continuity | Yes | ||
| Diode test | Yes | ||
| Overrange indication | Yes | ||
| Battery test | 9V, 1.5V | ||
| Input impedance | >1MΩ | ||
| Enclosure | Double moulded | ||
| Low battery indication | Yes | ||
| Power source | 6LF22 | ||
| Weight | 342g | ||
| Dimensions | 187 x 81 x 51mm | ||
| Safety Specs | IEC61010-1 CAT III 600V | ||
Downloads
Additional Information
| Group | Multimeters |
| Keywords | major tech, MT21, digital multimeter, multimeter, Compact |
| Sub Group | Digital Multimeters |
| Device | Multimeter |
| Type | DMM | Data Hold |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Sleek & Protective iPhone 17 Pro Case – Perfect Everyday Fit
Size: Iphone 17 Pro, Color: Orange, Size: Iphone 17 Pro, Color: Orange
This iPhone 17 Pro case fits perfectly and feels sturdy while still being lightweight. It gives good protection without making the phone bulky, and the design looks clean and premium. The buttons are easy to press and it feels comfortable to hold for everyday use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Practical Protection meets everyday elegance
Size: Iphone 15, Color: Black
When it comes to phone cases, functionality often battles design, leaving users to compromise on one or the other. However, the Miracase Magnetic Series Designed for iPhone 15 strikes an impressive balance, making it a standout choice for everyday users. Here’s a deeper dive into this case’s performance, practicality, and aesthetics.
Unpacking Military-Grade Protection
The first feature that grabs your attention is the military-grade protection claim. Unlike many cases that use the term as a buzzword, Miracase delivers. The corners are reinforced with shock-absorbing material, offering a solid defense against accidental drops. I tested this (intentionally dropping the phone from about waist height), and the iPhone 15 emerged unscathed—a testament to the case's reliability. The anti-scratch back panel further ensures your phone looks pristine, even with daily use.
MagSafe Compatibility Done Right
This case integrates seamlessly with MagSafe accessories, from chargers to wallets. The magnets are powerful enough to keep your MagSafe charger locked in place but not so strong as to make removing the accessories a struggle. Charging performance remains efficient, with no noticeable slowdowns compared to using the phone without a case. This makes it ideal for users who rely on wireless charging.
Dual Screen Protectors: A Value-Added Bonus
The inclusion of two screen protectors is a thoughtful touch. These aren’t flimsy add-ons; they are well-crafted with edge-to-edge coverage and excellent clarity. Application is easy with the provided guide frame, minimizing air bubbles—a detail often overlooked by competitors.
Anti-Fingerprint and Smudge Resistance
One of the standout features is the case’s anti-fingerprint coating. Many cases promise this but fail in practice. After a week of continuous use, the Miracase still looked clean and sleek, even with sweaty hands or frequent handling. The matte finish not only resists smudges but also adds a touch of understated elegance to your device.
Slim Profile Meets Grip Security
Despite its rugged features, the case maintains a slim profile, sliding easily into pockets. The textured sides provide a secure grip, reducing the chances of accidental drops. This combination of slimness and grip is rare in protective cases and makes the Miracase ideal for on-the-go lifestyles.
What Sets It Apart?
What truly makes the Miracase Magnetic Series unique is its thoughtful design for real-world use. It doesn’t just protect your phone; it enhances your interaction with it. From its MagSafe efficiency to its smudge-resistant finish, it’s clear that Miracase designed this case with user convenience in mind.
Who Is This For?
This case is perfect for individuals who want a no-nonsense protective case that doesn’t compromise on style or functionality. It’s particularly suited for professionals, students, and anyone who appreciates the integration of thoughtful design and durable performance.
Final Verdict
At its price point, the Miracase Magnetic Series Designed for iPhone 15 is an exceptional value. With its military-grade protection, MagSafe compatibility, and added extras like quality screen protectors, it confidently holds its own in a crowded market. Whether you prioritize protection, style, or everyday convenience, this case delivers on all fronts.
Rating: 9.5/10
A near-perfect blend of style, durability, and user-focused design.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 18, 2025
★★★★★ 5
Great phone case!
Size: iPhone 16e/17e, Color: Black
Perfect protective case for my iPhone 17, without it the phone was too small and easily slipped out of my hand this makes it easier to hold but it’s not too big, it even comes with two screen protectors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Fit great, seems sturdy
Size: iPhone 16e/17e, Color: Black
I just got it Fit perfect, seems sturdy. The screen cover was easy to install as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Very good product
Model: iPad Mini 6/A17 Pro 7th Gen
Nicely attaches to the iPan. Easy and no bubbles. had one and worked it completely out. Had all the need items for the installations. Screen touch works, cover went on without a hitch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
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