HK33B TRMS Compact Manual Digital Multimeters with Temperature

HK33B, adding temperature measurement (°C/°F) and live wire recognition, while maintaining the same compact, rugged form factor. 

Highlights:

  • True RMS Accuracy -Ensures precise readings on both linear and nonlinear signals.
  • Essential Functions – Measures DC/AC voltage (up to 600V), current (up to 10A), resistance (up to 200MΩ), and continuity.
  • User-Friendly Features – Includes backlit LCD, flashlight, NCV detection, and data hold for convenience.

Product Description

The Honeytek HK33B is an upgraded compact True RMS digital multimeter designed for users who require additional measurement capabilities such as temperature testing, relative mode, and microcurrent measurement. Compared with the HK33A, the HK33B offers enhanced functionality while maintaining the same portable and ergonomic compact design.

With AC/DC voltage and current testing, resistance measurement, temperature measurement, NCV detection, live wire recognition, battery testing, and CAT III 600V safety protection, the HK33B is suitable for electrical engineers, HVAC technicians, electronics repair professionals, automotive maintenance, and industrial troubleshooting.

The inclusion of temperature measurement makes it especially useful for HVAC systems, industrial equipment inspection, and electronic component testing.


Highlights Features

  • True RMS measurement for precise readings
  • Compact portable manual range multimeter
  • Supports temperature measurement (°C / °F)
  • Measures microcurrent and low current accurately
  • Relative mode function for comparative testing
  • AC/DC voltage and current measurement
  • NCV non-contact voltage detection
  • Live wire recognition
  • MAX/MIN recording function
  • LCD backlight and flashlight
  • Battery testing support
  • Continuity buzzer and diode testing
  • CAT III 600V safety protection
  • Auto power-off design

Specifications 

ItemHoneytek HK33B
Display Count1999 Counts
DC Voltage20mV/200mV/2V/20V/200V/600V
AC Voltage200mV/2V/20V/200V/600V
DC Current200uA/2000uA/20mA/200mA/10A
AC Current200uA/2000uA/20mA/200mA/10A
Resistance200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ
Temperature-20°C to 1000°C
Temperature Unit°C / °F
True RMSYes
Diode TestYes
Continuity BuzzerYes
Transistor hFEYes
NCV DetectionYes
Live Wire RecognitionYes
LCD BacklightYes
FlashlightYes
MAX/MINYes
Data HoldYes
Relative ModeYes
Battery Test1.5V / 3V / 9V
Auto Power OffYes
Safety RatingCAT III 600V
Power Supply2×AAA Batteries
Product Size150×75×36 mm
Product Weight300g

Applications

HVAC System Maintenance

Temperature testing capability makes the HK33B suitable for air conditioning and refrigeration diagnostics.

Industrial Equipment Inspection

Can measure voltage, current, and temperature in industrial electrical systems.

Automotive Electrical Repair

Useful for diagnosing sensors, batteries, charging systems, and wiring circuits.

Electronic Circuit Troubleshooting

Supports low current measurement for PCB and electronic component testing.

Home and Commercial Electrical Work

Suitable for electricians performing routine installation and maintenance tasks.


FAQ

1. What is the main upgrade from HK33A to HK33B?

The HK33B adds temperature measurement, relative mode, and microamp current measurement functions.

2. Can the HK33B measure temperature?

Yes. It supports temperature measurement from -20°C to 1000°C and displays both °C and °F.

3. Is the HK33B suitable for HVAC technicians?

Yes. The temperature measurement function makes it ideal for HVAC and refrigeration maintenance.

4. Does the HK33B support low current measurement?

Yes. It supports microamp current ranges for more precise electronic diagnostics.

5. Is the HK33B safe for professional electrical work?

Yes. It features CAT III 600V safety protection and includes NCV detection for safer operation.


Difference Between Honeytek HK33A and HK33B

FeatureHK33AHK33B
Temperature MeasurementNoYes
Relative ModeNoYes
Microcurrent MeasurementNoYes
DC Voltage Minimum Range200mV20mV
Current Minimum Range2mA200uA
HVAC ApplicationBasicRecommended
Electronic Precision TestingStandardBetter
User TypeGeneral Electrical TestingAdvanced Electrical & HVAC Testing

Which One Should You Choose?

  • Choose Honeytek HK33A if you need a compact and affordable True RMS multimeter for standard electrical maintenance and general troubleshooting.
  • Choose Honeytek HK33B if you require temperature testing, microcurrent measurement, and more advanced diagnostic functions for HVAC, electronics, and industrial applications.
Shanghai Office

Shenzhen Factory

U.S. Office

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Frequently Asked Questions

Yes, Honeytek supports OEM/ODM customization, including logo printing, packaging design, and parameter adjustments (e.g., measurement ranges, functions, or display options) to meet specific client requirements.

Standard models usually ship within 15–30 days after order confirmation. Customized orders may require additional time depending on specifications.

Yes, our DMMs comply with CE, RoHS, and other international safety/quality standards. Specific certifications vary by model—contact us for details.

MOQ starts at 500 units for standard customization (e.g., logo/packaging). Larger parameter modifications may require higher quantities.

All DMMs undergo rigorous calibration and testing. We provide calibration certificates (optional) and recommend periodic recalibration for precision.

We provide a 1–2 year warranty, technical support, and repair services. Spare parts (e.g., test leads, fuses) are also available.

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