The Hioki DT4222 Digital Multimeter is a part of the Hioki DT4200 Digital Multimeter Series, which comprises of a total of nine models. These models range from professional to industrial to pocket meters, and are designed to deliver a super fast response rate and safety features that take electrical testing to a higher level. The DT4222 model is a pocket-sized digital multimeter that is specifically designed for electrical work requiring optimal safety.

• Hioki DT4221: This model is a compact digital multimeter with a variety of measurement capabilities, including voltage, current, resistance, frequency, and temperature.
• Hioki DT4222: This model is similar to the DT4221 but without the capacitance measurement capability.
• Hioki DT4223: This model is similar to the DT4222 but with the capacitance and temperature measurement capabilities.
• Hioki DT4252: This model is designed for measuring low-level currents, with a range of 2mA to 20mA.
• Hioki DT4253: This model is similar to the DT4252 but with a higher current measurement range of 2mA to 200mA.
• Hioki DT4255: This model is designed for measuring high voltages and currents, up to 600V and 10A, respectively.
• Hioki DT4256: This model is similar to the DT4255 but with slightly higher voltage and current measurement capabilities (up to 1000V and 20A, respectively).
• Hioki DT4261: This model has a high resolution and accuracy and is designed for use in industrial settings.
• Hioki DT4281: This model is designed for high-speed measurement and can measure up to 120,000 times per second.
• Hioki DT4282: This model is similar to the DT4281 but also includes a built-in data logger for recording measurements over time.

The DT4222 model has a wide range of features and functions that enable it to deliver precise and reliable results every time. Its basic specifications include DC voltage range of 600.0 mV to 600.0 V, 4 ranges, with a basic accuracy of ±0.5% rdg. ±5 dgt. The AC voltage range is 6.000 V to 600.0 V, 3 ranges, with frequency characteristics of 40 Hz – 1 kHz. The basic accuracy for 40 – 500 Hz is ±1.0 % rdg. ±3 dgt. (True RMS, crest factor 3).

The resistance range is 600.0 Ω to 60.00 MΩ, 6 ranges, with a basic accuracy of ±0.9 % rdg ±5 dgt. The capacitance range is 1.000 μF to 10.00 mF, 5 ranges, with a basic accuracy of ±1.9 % rdg ±5 dgt. The frequency range for AC V measurement is 99.99 Hz (5 Hz or more) to 9.999 kHz, 3 ranges, with a basic accuracy of ±0.1 % rdg. ±2 dgt.

Other functions of the DT4222 model include continuity check, diode test, voltage detection, filter function, display value hold, relative display, and auto-power save. The display consists of main and sub displays, both with 4-digit LCD and a maximum of 6000 digits, and a bar graph. The display refresh rates are 5 times/s (capacitance measurement: 0.05 to 5 times/s, depending on measured value, frequency: 1 to 2 times/s).

Basic specifications (Accuracy guaranteed for 3 years, Post-adjustment accuracy guaranteed for 3 years)