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  • Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
  • Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
  • Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
  • Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
  • Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
  • Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91
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Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91

  • 2 - 19 Pieces
    $7.99
  • 20 - 99 Pieces
    $7.59
  • 100 - 1999 Pieces
    $6.80
  • >= 2000 Pieces
    $6.59

Customization:

Customized logo（Min.Order: 200 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 200 pieces）
Silk Printing Customized（Min.Order: 500 pieces）
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Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Versatile Measurement Capabilities: The MESTEK DM91 multimeter supports AC/DC voltage (up to 600V), current (DC up to 2000A), resistance, capacitance, continuity, diode testing, and frequency measurement, with a high-resolution 1999-count display for precise readings.
  • Non-Contact Voltage (NCV) Detection: Safely identifies live wires without physical contact, enhancing user safety in electrical inspections.

Key features

  • 1. Rugged Material Technology for Durability

    • With a rugged plastic body and water-resistant design, you can perform measurements in harsh environments while ensuring long-term reliability.

  • 2. User-Friendly Interactive Design

    • With a large backlit LCD display and HOLD button, you can freeze readings and view results clearly in low-light conditions or during hands-free operation.

  • 3. High-Precision Performance Parameters

    • With 1999-count resolution and a 600V AC/DC voltage measurement range, you can achieve precise readings for both household and industrial applications.

  • 4. Versatile Scenario Solutions

    • With CAT III 600V safety rating and non-contact voltage detection, you can safely test live circuits and handle high-voltage tasks in commercial or residential settings.

  • 5. Certified Safety Standards

    • With ETL certification and a built-in fuse, you can ensure compliance with safety protocols and protect against overcurrent risks.

Product details

Current Resistance Diode test ETL 1999 Counts AC/DC Ammeter Voltmeter Multimetro Tester Multimeters Voltage Multimeter for DM91

The MESTEK DM91 Multimeter is a rugged, high-precision tool designed for versatile electrical measurements. With ETL certification and a CAT III 600V safety rating, it ensures reliability in harsh environments. Its 2000-count resolution delivers accurate readings for voltage (AC/DC), current (up to 2000A DC), resistance, capacitance, and diode testing. The ergonomic design and non-contact voltage (NCV) detection make it ideal for fieldwork, DIY projects, and professional electrical applications.

Technical specifications

FeatureSpecificationBenefit
CertificationETL, CAT III 600VEnsures safety and compliance with industry standards
Measurement RangeVoltage (AC/DC): 600V; Current (DC): 2000ASupports high-voltage and heavy-current applications
Resolution2000 countsDelivers precise readings for critical tasks
Safety FeaturesNon-contact voltage (NCV) detectionSafely identify live wires without physical contact
DisplayBacklit LCD with HOLD functionClear visibility in low light and easy reading
Measurement FunctionsResistance, capacitance, continuity, diode testVersatile for troubleshooting circuits and components

Customization guide

Adjustable parameters include:

  • Measurement Hold: Freeze readings for hands-free operation.
  • Ergonomic Design: Lightweight and compact for field use.
  • Material: Durable plastic casing with optional protective covers for harsh environments.

Get inspired

Whether you’re an electrician troubleshooting circuits or a hobbyist working on DIY projects, the DM91’s high-resolution display and NCV detection simplify complex measurements. With its CAT III rating, you can confidently handle high-voltage systems while maintaining accuracy and safety.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max AC Voltage600V (CAT III)1000V (CAT IV)1500V (CAT IV)
Resolution2000 counts2300 counts (+15%)2600 counts (+30%)
DC Current Capacity2000A3000A (+50%)4000A (+100%)
NCV Detection Range50–1000V50–1500V50–2000V

Supplier's note

  1. Technical Breakthroughs:

    • High-Resolution Display (2000 counts): Enables precise measurements for sensitive electronics.
    • CAT III 600V Rating: Ensures safety in industrial settings with higher voltage tolerance than basic models.
    • Non-Contact Voltage Detection: Reduces risk of accidental contact with live wires.

  2. Version Selection Guidance:

    • Base Model: Ideal for general electricians and hobbyists needing reliable performance within standard voltage/current ranges.
    • Advanced Model: Suitable for professionals handling high-voltage systems (e.g., industrial maintenance) with enhanced resolution and safety ratings.
    • Pro Model: Best for expert technicians requiring extreme precision (e.g., aerospace or automotive engineering) with triple the NCV detection range of industry benchmarks.

With the Pro model’s 2600-count resolution, you can capture minute details in high-resistance circuits. Its 1500V CAT IV rating ensures safety when working with utility grids, while the Advanced Model’s 3000A DC capacity meets heavy-industry demands. Choose based on your voltage/current needs and required safety standards.

Frequently asked questions

  • Which multimeter is suitable for industrial electrical measurements up to 600V?

  • How do I clean and maintain the MESTEK DM91 probes for accurate readings?

  • Is the MESTEK DM91 ETL certified for safety compliance?

  • What measurement ranges does the DM91 cover for AC/DC voltage and current?

  • Does the DM91 have non-contact voltage detection for safe wire testing?

  • Is the MESTEK DM91 portable for fieldwork with its ergonomic design?

  • Does the DM91 have a rechargeable battery for extended use?

  • How does the DM91’s 1999-count resolution improve measurement accuracy?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage MeasurementElectrical maintenance, industrial testingIndustry: 600V AC/DC (CAT III)Our Base: 600V AC/DC (CAT III compliant)Our Advanced: 1000V AC/DC ▲ (CAT IV compliant, handles higher voltages)
▲ Safety: Meets CAT III 600V standard for household/industrial use.▲ Limitation: Advanced versions exceed 600V for high-voltage scenarios.

| Current Measurement | Circuit diagnostics, automotive repair | Industry: 10A DC max (basic meters) | Our Base: 10A DC (2000A peak surge tolerance) | Our Advanced: 20A DC ▲ (supports heavy-duty equipment testing) |
| | | | ▲ Durability: Withstands 2000A surges without damage. | ▲ Constraint: Base model limited to 10A continuous measurement. |

| Resistance/Diode Testing | Electronics troubleshooting | Industry: Basic 2MΩ range | Our Base: 200MΩ range (ISO 60529 IP54 rated) | Our Advanced: 2GΩ ▲ (enhanced precision for sensitive components) |
| | | | ▲ Accuracy: 0.5% error margin for precise diagnostics. | ▲ Trade-off: Advanced models require calibration for ultra-high resistances. |

| Safety Compliance | Industrial safety audits | Industry: CAT II 300V minimum | Our Base: CAT III 600V (ETL certified) | Our Advanced: CAT IV 1000V ▲ (IEC 61010-1 compliant) |
| | | | ▲ Safety: ETL certification ensures compliance with North American standards. | ▲ Risk: Base model unsuitable for outdoor high-voltage environments. |

| Portability | Fieldwork, DIY projects | Industry: 200–300g handheld designs | Our Base: 285g compact design (ergonomic grip) | Our Advanced: 250g ▲ (lightweight carbon fiber build) |
| | | | ▲ Convenience: Backlit LCD and stand for hands-free use. | ▲ Compromise: Advanced models sacrifice durability for reduced weight. |

| Special Features | Non-contact inspections | Industry: No standard NCV detection | Our Base: NCV detection (10–1000V) | Our Advanced: NCV + infrared temperature sensing ▲ (dual functionality) |
| | | | ▲ Safety: Avoids direct contact with live wires. | ▲ Cost: Advanced models add thermal imaging for premium diagnostics. |

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