HIOKI Digital Multimeters for Precision Maintenance

Key SpecificationsVoltage, resistance, capacitance and frequency Diode test and continuityDC and AC voltage ranges 600 mV, 6 V, 60 V, 600 V True RMS measurement CAT III 600 V, CAT IV 300 V Typical Applications  Electrical installation and service work Troubleshooting and verification of electrical circuits Versatile measurement tasks in field and workshop environments DT4223 DT4224 Common specifications True RMS AC and DC voltage measurement (ranges 600 mV, 6 V, 60 V and 600 V)Resistance, frequency and continuity measurement6000 count displayCAT III 600 V and CAT IV 300 V DT4223 specific Automatic AC/DC voltage detectionNon-contact voltage detection (NCV) DT4224 specific Capacitance measurementDiode test Detailed Product OverviewThe HIOKI DT4224 is a universal pocket digital multimeter designed for a wide range of electrical measurement tasks. In addition to AC and DC voltage checks, it supports resistance, capacitance, frequency and diode testing, making it well suited as a first tool for troubleshooting and initial analysis in both field and workshop environments. With its compact design, the DT4224 takes up very little space in a tool bag or pocket. With battery installed and test leads connected, it weighs approximately 210 g, making it easy to carry for everyday work. Powered by a single AAA battery and protected by a silicone cover, it is suitable for regular use in installation, service and workshop applications. Measurement Ranges and Safety The DT4224 is equipped with a clear 6000 count display and an intuitive operating concept that supports efficient troubleshooting and verification tasks. AC and DC voltage ranges from 600 mV to 600 V cover a wide range of measurement situations, from low level signals to mains voltage. With measurement categories up to CAT III 600 V and CAT IV 300 V, it is suitable for work on distribution boards and fixed installations. For safe troubleshooting in active circuits and complex electrical installations, the instrument is equipped with an integrated protection function that prevents false tripping of circuit breakers in case of measurement errors. If measurements are accidentally performed in the resistance or continuity mode on an active circuit, or if the measurement function is changed with test leads connected, the input impedance remains high. The input is only switched to a low impedance state once the measurement condition is recognized as safe Although extremely compact, the DT4224 is a high quality digital multimeter designed for professional installation, service and troubleshooting work. Like all HIOKI digital multimeters, the DT4224 is developed in Japan and manufactured at HIOKI’s own production facilities in Japan.

Key SpecificationsDC voltage measurement range: 600 mV to 1000 V AC voltage measurement range: 6 V to 1000 V Current measurement ranges: 60.00 µA / 600.0 µA / 6.000 mA / 60.00 mA 4–20 mA process measurement with percentage display: 0–100% (4 mA = 0%, 20 mA = 100%)Temperature measurement range: −40 °C to +400 °C (K-type) Safety rating: CAT III 1000 V / CAT IV 600 V  Detailed Product OverviewThe HIOKI DT4253 is a True RMS digital multimeter specifically designed for process measurement as well as service and maintenance applications. It is ideally suited for use in control and regulation circuits, HVAC systems, and gas and oil burner systems. A key distinguishing feature of the DT4253 is its high-resolution DC µA measurement range up to 60 µA, which is specifically designed for flame current and ionization measurements in gas and oil burner systems. This allows reliable verification of burner operation as well as associated safety and monitoring circuits. Building on this, the DT4253 supports 4–20 mA process measurement with direct percentage display. Transmitter and control signals are displayed immediately as a percentage value (0–100%), eliminating the need for manual calculation. The dual display allows simultaneous indication of the measured value and the percentage value, significantly simplifying the evaluation of process signals. For extended applications, the DT4253 can be used in combination with external AC clamp-on probes. This enables non-contact AC current measurement without interrupting the circuit. The functional range is further expanded by temperature measurement using a K-type thermocouple as well as automatic AC/DC voltage detection, which simplifies measurements in mixed environments and reduces operating errors.Thanks to its robust design, fast response time, and safety rating CAT III 1000 V / CAT IV 600 V, the DT4253 is a reliable tool for professional use in industrial and building technology environments. The DT4253 is the ideal choice for precise measurement of flame currents, process signals, and small DC currents in daily service and maintenance work.

Rugged digital multimeter with accurate True RMS measurement, voltage detection, and integrated protection features. Optimized for field diagnostics, maintenance, and training environments.

Hioki DT4281 Digital Multimeter offers a versatile and reliable solution for precision electrical measurements. Equipped with a 5-digit display and advanced features, this multimeter is ideal for professionals handling a variety of applications.

The DT4282 Digital Multimeter offers a versatile and reliable solution for precision electrical measurements. Equipped with a 5-digit display and advanced features, this multimeter is ideal for professionals handling a variety of applications, from basic voltage and current measurements to more complex functions such as capacitance, frequency, and data logging. Its robust safety ratings ensure secure usage in demanding environments.Technical Details: Display: 5-digit, 60,000 counts Measurement functions: AC/DC voltage, AC/DC current, resistance, conductance, capacitance, temperature, frequency, diode test, continuity test Additional functions: dB (voltage), % (current), data memory, auto range, true RMS Safety range: CAT III 1000V, CAT IV 600V Basic accuracy: ±0.025 % (DC voltage)

HIOKI 3244-60 card-size digital multimeter – ultra-compact for quick voltage and resistance checks on the go. Order online now from HIOKI Europe.

Non-contact voltage detector with adjustable sensitivity for safe AC voltage detection in electrical installations and maintenance. HIOKI 3481-20 available now.

HIOKI DT4223 pocket digital multimeter with True RMS, compact design and essential AC/DC measurements for installation and field service. Order now from HIOKI Europe.

HIOKI DT4256-20 Digital Multimeter with True RMS AC V/A, CAT III 1000 V/CAT IV 600 V safety and fast response for maintenance work. Order now.

HIOKI DT4261 Digital Multimeter with True RMS AC V/A, 10 A direct input and CAT III 1000 V/CAT IV 600 V safety. Optional Bluetooth®. Order now.