Mastech MS8229 Professional Digital Multimeter presented by BDTronics , a powerful 5-in-1 multifunction measuring instrument designed for electronics engineers, technicians, students, and industrial users in Bangladesh. This advanced digital multimeter combines electrical measurement with environmental sensing, integrating a lux meter, sound level meter, temperature meter, and humidity meter into a single compact device. Along with standard AC/DC voltage and current measurement, it supports resistance, capacitance, frequency, duty cycle, diode testing, and continuity checking, making it an all-in-one diagnostic tool for electrical and environmental analysis.

Features:

• 5-in-1 multifunction design: electrical + environmental measurements

• Measures AC/DC voltage and current with high accuracy

• Integrated Light (Lux) meter for illumination measurement

• Integrated Sound level (dB) meter for noise monitoring

• Temperature measurement using NTC and K-type thermocouple

• Humidity (RH) sensor for ambient environment monitoring

• 4000-count clear digital display with backlight

• Auto and manual ranging for flexible operation

• Data hold and maximum value measurement

• Continuity buzzer and diode testing function

• Auto power-off and low-battery indication

• Compact handheld design suitable for field and lab use

Specifications:

• Display: 3999 counts

• DC Voltage: 400mV / 4V / 40V / 400V / 1000V ±0.7%

• AC Voltage: 400mV / 4V / 40V / 400V ±0.8%, 750V ±1.0%

• DC Current: 400µA / 4000µA / 40mA / 400mA ±1.2%, 10A ±2.0%

• AC Current: 400µA / 4000µA / 40mA / 400mA ±1.5%, 10A ±3.0%

• Resistance: 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ ±1.0%

• Capacitance: 50nF / 500nF / 5µF / 50µF / 200µF ±3.0%

• Frequency: 10Hz / 100Hz / 1kHz / 10kHz / 100kHz ±2.0%

• Duty Cycle: 0.1% – 99.9% ±3.0%

• Temperature (Thermocouple): -20°C to 1000°C, 0°F to 1800°F

• Temperature (NTC): 0°C to 40°C

• Light Measurement: 4000 / 40000 Lux ±5.0%

• Humidity Measurement: 20% – 95% RH ±5.0%

• Sound Level: 40 – 100 dB ±5 dB

• Diode Test: Yes

• Continuity Test: Yes, buzzer <50±20Ω

• Backlight: Yes

• Power Supply: 1.5V AAA battery × 3

• Size: 195 × 92 × 55 mm

How to Use:

• Select the desired measurement function using the rotary dial.

• Use test leads for voltage, current, resistance, and continuity testing.

• Switch to Lux mode for measuring light intensity in workspaces.

• Use Sound mode to measure ambient noise levels.

• Connect the K-type thermocouple for high-temperature measurements.

• Monitor humidity and ambient temperature for environmental analysis.

• Enable data hold to freeze readings for accurate documentation.

Accessories Included:

• Test leads

• K-type thermocouple

• Batteries

• User manual

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