Introducing the Hioki DT4221, a pocket-sized digital multimeter that delivers optimal safety and super-fast response rates for all your electrical testing needs. The DT4221 is part of the Hioki DT4200 Digital Multimeter Series, which features a complete lineup of 9 models ranging from professional to industrial to pocket meters.

• 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 DT4221 boasts an impressive ±0.5% DC V accuracy and wide 40Hz to 1kHz AC V bandwidth, making it perfect for electrical work that requires a high level of accuracy and safety. With basic specifications that guarantee accuracy for 3 years and post-adjustment accuracy that is guaranteed for another 3 years, you can trust that the DT4221 will provide reliable measurements every time.

This digital multimeter offers a DC voltage range of 600.0 mV to 600.0 V, 4 ranges, and an AC voltage range of 6.000 V to 600.0 V, 3 ranges, with frequency characteristics of 40 Hz to 1 kHz. The basic accuracy for 40-500 Hz is ±1.0% rdg. ±3 dgt. (True RMS, crest factor 3). It also has a frequency range of AC V measurement from 99.99 Hz (5 Hz or more) to 9.999 kHz, 3 ranges, with a basic accuracy of ±0.1% rdg. ±2 dgt.

The DT4221 features a continuity check that has a threshold of 25 Ω or less (buzzer sound) and 245 Ω or more (no sound). It has a fast response time of 0.5 ms or more. Additionally, it comes with a filter function, display value hold, relative display, and auto-power save functions.

The device features main and sub displays with 4-digits LCD, max. 6000 digits, and a bar graph. The display refresh rates are 5 times/s (Capacitance measurement: 0.05 to 5 times/s, depending on the measured value, Frequency: 1 to 2 time/s). The DT4221 is powered by LR03 alkaline batteries ×1 and has a continuous use of 40 hours (backlight OFF).

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