Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

Shanghai Yi Hua V&A Instrument Co., Ltd., known as Mastech Shanghai, is one of the major test instrument manufacturers in China specialized in professional test and measurement instruments .

  • +86 21 69523164
  • +86 21 69523221
  • 881 Ye Cheng Road Jia Ding District
    Shanghai, 201821

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Showing recent results 1 - 15 of 58 products found.

  • Auto-Scan Pen R/C Meter for SMD

    VA505A/505B - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    Resistance300Ω/3KΩ/30KΩ/300KΩ/3MΩ/30MΩ600Ω/6KΩ/60KΩ/600KΩ/6MΩ/60MΩ±(1%+5)Capacitance3nF/30nF/300nF/3μF/30μF/300μF/3mF/30mF6nF/60nF/600nF/6μF/60μF/600μF/6mF/60mF±(3%+5)Auto Scan mode0~3MΩ/400pF~300μF±(1%+5)0~6MΩ/400pF~600μF±(3%+5

  • 2 in 1 MULTIMETER With Misp lug Alarm Function

    VA20 / VA20C / VA21 / VA22 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    DC Voltage200mV/2V/20V/200V/600V/400mV/4V/40V/400V/1000V±(0.7%+2)±(0.7%+2)±(0.7%+2)±(0.7%+3)AC Voltage200mV/2V/20V/200V/600V4V/40V/400V/750V±(1%+3)±(1%+3)±(1%+3)±(1.2%+3)DC Current200μA/2mA/20mA/200mA/2A/10A/4000μA/400mA/10A±(2%+10)±(2%+10)±(2%+10)±(2%+8)AC Current200μA/2mA/20mA/200mA/2A/10A/ 4000μA/400mA/10A±(3%+10)±(3%+10)±(3%+10)±(3%+8)Resistance200Ω/2KΩ/20KΩ/200KΩ/2MΩ/20MΩ/400Ω/4KΩ/40KΩ/400KΩ/4MΩ/40MΩ±(1%+5)±(1%+5)±(1%+5)±(2%+5)Capacitance20nF/200nF/2μF/20μF/200μF/1000μF/4nF/40nF/400nF /4μF/40μF/200μF ±(4%+10)±(5%+5)Temperature-20°C~1000°C-40°C~750°C ±(1%+3°C)±(1%+4°C)±(1%+4°C)0°F~1800°F ±(1%+5°F)±(1%+7°F) Frequency10HZ~200KHZ ±(0.1%+1)

  • Capacitance Meter C/L Meter

    VA501 / VA502 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    Digital Capacitance Meter DISPLAY: 1999 Counts CAP: 200p/2n/20n/200n/2μ/20μF/200μF±0.5% 2000μF±1.0%,20mF±2.0% POWER: BATTERY 6F22(9V)×1 SIZE:91×189×31.5mm WEIGHT:APPROX.210g

  • Digital Clamp Meter

    M266 series - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    M266 · DC Voltage: 1000V ± 0.8% · AC Voltage: 750V ??.2% · AC Current: 200 - 600A ±2.0%, 600 ~ 1000A ±3.0% · Resistance: 200Ω, 20KΩ±1.0% · Continuity check: Built in buzzer will sound · Data hold · Display: LCD size 15 x 47 mm · Dimension: 70 x 230 x 37mm · Weight: 310g M266A · DC Voltage: 2 / 20 / 200V ± 0.5%, 1000V ± 0.8%· AC Voltage: 200V ± 1.0% 750 ± 1.2%· AC Current: 200 ~ 600A ± 2.0%, 600 ~ 1000A ± 3.0%· Resistance: 200Ω, 20KΩ, 2MΩ ± 1.0%· Frequency: 2KHz±3%· Diode Test: Check forward or reverse· Continuity check: Built in buzzer will sound· Peak hold     (Special function) · Display: LCD size 15 x 47 mm· Dimension: 70 x 230 x 37mm· Weight: 310g

  • Counts High Accuracy Multimeter with USB interface

    VA38 50000 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    This multimeters are rugged and reliable, hand-held or system instruments for maintenance, initial start-up, training and R&D in industry, for government authorities, in the test lab, in manufacturing and quality assurance, as well as at universities.

  • Coating Thickness Guage

    VA8042 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    By electromagnectic method, the meter can measure the coating thickness non-destructively, including paint, spray-plastic, rubber, enamel, or chrome plate, copperizing, aluminum plating on steel, iron, non-austenitic stainless steel. Four digitals LCD display, differentiating upto μm. System calibrating by user-self. Pocket shell, convenient for engineering locale. Thickness unit “μm”or”mil”optional. Micro-controller controls, high accuracy. Coupling state display Shut down manually or automatically. Low battery voltage indication.

  • Dual ways thermocouple meter

    VA8060 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    This economical type K & J thermocouple thermometer provides accurate and reliable temperature measurement in an economic and compact design. , high & low temp indicator (audible alarm), interchangeable J & K type thermocouples, stores up to five groups of data, provides & holds T1-T2, average, maximum and minimum, selectable °F & °C temperature units, auto-power off setting, backlight. For even greater accuracy, 8060 features a resolution of 0.1°C/0.1°F (below 1000°C) and 1°C/1°F (above 1000°C). Plus with 2pcs K-type thermocouple sensors It is often necessary to take temperature measurements with different types of thermocouples. 8060 makes it possible without switching meters. These meters are equipped with a button that switches between K-type or J-type thermocouples, giving them the power of 2 meters, all in one unit. The meters are also equipped with a dual-level LCD that shows measured high and low temperatures along with the current reading. To freeze the display for easy recording, simply press the HOLD button. A °C/°F button will toggle between Celsius and Fahrenheit.


    MS5209 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    EARTH RESISTANCE TESTER ﹒Measurement range: Earth resistance:10/100/1000Ω Earth voltage:30V AC(5KΩ/V approx.) ﹒Accuracy Earth resistance:Within±5% of full scale Earth voltage: Within±5% of full scale ﹒Measurement system Earth resistance by constant current inverter 800Hz approx.2mA Earth voltage by rectifier type 5KΩ/V approx.40~500Hz ﹒Withstand voltage 1500V AC for one minute between electrical circuit and housing case ﹒Self-check facility Lead wire connection to C and P terminals and proper auxiliary earth resistance can be checked by pressing″BATT.CHECK″button, ″OK″lamp is illuminated.

  • Extra-safety USB multimeter with TRMS

    VA50 Series - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    ● Display: 6000 counts●USB port connect to PC ●Ture RMS Measurement(VA50R) ● Relative measument ● Auto power off ● Data hold ● Back light ● Auto/manual range ● Low power indication ●Diode/Continuity test


    MS6820 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    Introduction: The Fiber Tester is a small hand-held tool for verifying and troubleshooting and quickly diagnose problems during Fiber cable installation. Features: ﹒Power saving automatically ﹒Power on ang Battery low indicator ﹒Operation is the easiest ﹒Cost-effective is the most Specifications ﹒Light wave Wavelength:1300nm ﹒Fiber core:62.5/125μm ﹒Power range:-20dBm~-40dBm ﹒Power:6F22(9V)×1 ﹒Size:112×62×23mm ﹒Weigh:receiver 95g(include battery) ﹒Emitter 92g(include battery)

  • Digital luxmeter

    VA8050/VA8051 > - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    VA8050/VA8051 Digital luxmeter The VA8050 is one of our Environmental Instruments Series, one measuring instrument designed for measuring the intensity of your lighting systems and measure illuminances in areas like workplace, field of cinematography and scenic design, general field of lighting, etc.

  • Digital Multimeter

    MS8221A/MS8221B/MS8221D/MS8230B - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    DC Voltage200mV/2V/20V/200V/1000V±0.5%±0.5%±0.5%±0.5%AC Voltage2V/20V200V/750V200V/750V±0.8%±1.2%±0.8%±1.2%DC Current200μA/2mA/20mA/200mA/10A2mA/20mA/200mA/10A±0.8%±1.0%±0.8%±1.0%AC Current2mA/20mA/200mA/10A±1.2%±1.2%Resistance200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ200Ω/2kΩ/20kΩ/200kΩ/2MΩ±0.8%±0.8%±0.8%±0.8%

  • Digital Multimeter

    MS8201 Series - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    SPECIFICATIONS: Display:3999 DC Voltage: 400mV/4V/40V/400V/1000V±0.7% AC Voltage: 4V/40V/400V/750V±0.8% DC Current: 4000μA/400mA/10A±1.2% AC Current: 4000μA/400mA/10A±1.5% Resistance: 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ±1.2% Capacitance: 4nF/40nF/400nF/4μF/40μF/200μF±5% Frequency: 10Hz/100Hz/1000Hz/10kHz/100kHz/1000kHz/1Hz±2% Duty Cycle: 0.1%~99.9%


    M300 / M320 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    · Pocket size · Display: 14 x 35mm · DC Voltage: 2V ±0.5%, 20 / 200 / 500V ±0.8% · AC Voltage: 200 / 500V ±1.2% · DC Current: 200mA ±1.5% · Resistance: 2K / 20K / 200K / 2MΩ ±1.0% · Continuity checking with buzzer · Diode test · Power: 12V GP23A x 1 · Size: 70 x 120 x 18mm · Weight: Approx.110g (including battery)


    M3900 - Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD

    · Display: 26x60mm LCD · DC Voltage: 200m/2/20/200V/1000V±0.5% · AC Voltage: 200mV±1.2%, 2/20/200V±0.8%, 700V±1.2% · DC Current: 20μA±2.0%, 200μ/2mA/20mA±0.8%, 200mA/2A±1.2%, 10A±2.0% · AC Current: 20μA±3.0%, 200μ/2mA/20mA±1.0%, 200mA/2A±1.8%, 10A±3.0% · Resistance: 200/2K/20K/200K/2MΩ±0.5%, 20MΩ±1.0% · Continuity checking with buzzer · Diode test: Test current 1mA, Test Voltage 2.8V · Transistor hFE Test: 1 ~ 1000 · Power: 6F22(9V) x1 · Size: 88x172x36mm · Weight: 340g(Including battery)