Mastech MS8229 Auto-Range 5-in-1 Multi-Functional Multimeter

Mastech MS8229 Auto-Range 5-in-1 Multi-Functional Multimeter

The Mastech MS8229 is a highly versatile “5-in-1” auto-ranging digital multimeter designed not only for electrical measurements but also for environmental monitoring. It integrates standard DMM functions (AC/DC voltage & current, resistance, capacitance, frequency, duty cycle) with built-in sensors to measure temperature (via K-type probe), relative humidity, sound level (dB), and light intensity (lux) — making it a single instrument for both electrical and environmental diagnostics.

Key highlights include:

• Auto-ranging plus manual range option.

• 4,000-count display with backlight for improved visibility.

• Safety rating CAT III 600V (in many specs) for safer use in electrical environments.

• A range of specialised measurement modes: for example, temperature from -20 °C up to 1000 °C, relative humidity from 20 %-95 %, sound level from ~40 dB-100 dB, and lux from 4,000 lux to 40,000 lux.

• Useful functions like data-hold, continuity buzzer (on resistance threshold), diode test, relative measurement mode, and automatic power off.

This multimeter is particularly suited for professionals or hobbyists who need to monitor not just electrical parameters but environmental ones too — for example, HVAC technicians, building inspectors, environmental monitoring, facility maintenance, electronics labs, and more. Its combination of features offers a strong value for those needing a “one-tool‐fits-both” approach.

– DCV: 400m/4/40/400/1000V ± 0.7%+2
– ACV: 400m/4/40/400V ±0.8%+3; 750V ±1%+3
– DCA: 400μ/4000u/40m/400m ±1.2%+3 4/10A ±2.0%+10
– ACA: 400μ/4000u/40m/400m ±1.5 %+5 4/10A ± 3.0%+10
– Resistance: 400/4K/40K/400K/4M ±1.2%+5 ; 40M ±2%+5
– Capacitance: 40n/400n/4u/40u/100uF ±3.0%+3
– Frequency: 10/100/1K/10K/100KHz ± 2.0%+5
– Temperature: -20 ~1000 ℃ ±2.0% ; ﹣4℉~1832℉ ±2.0%
– RH: 20 to 95% ± 5.0%,
– Lux: 4,000/40,000 Lux ±5.0%
– Sound dB: 40~100dB ±3.5%
– Diode test, Continuity tester: Buzzer if resistance is less than 40 ohms.
– Duty cycle: 0.1%-99.9% ± 3.0%.
– Display: LCD, 3 readings at the same time
– Maximum value display: 3999 digits
– Polarity indication: automatic;”-” for negative polarity.
– Auto power off time: 30 min
– Operating power: 1.5V x 3 AAA batteries

Warranty: As per Mastech’s policy.