Reviews High Accuracy Voltage Measurement

Actron CP7400 Digital Multimeter

  • [Professional Tachometer] This is a contact type tachometer with stable performance, high reliability and high safety. It supports 3CYL / 4/5/6 / 8CYL range measurement(Speed measurement range: 5000-10000 / min) and maintains a high accuracy of (1.2% + 2)..
  • [Multi-function multimeter] Support to measure DC voltage, current, AC voltage, current, and resistance, capacitance, temperature, crystal diode, triode parameters and circuit on-off. This product is suitable for automobile maintenance and debugging, etc. It is your ideal measuring tool..
  • [Protection function] Low power CMOS double integral A / D conversion integrated circuit, automatic zero calibration, automatic polarity display, data retention, low battery and over-range indication, and with overload protection, 15 minutes of automatic shutdown without operation..
  • [Non-contact tachometer] This is a non-contact tachometer. The non-contact design avoids contact between the instrument and the component under test, and solves the measurement problems of some small or volatile test components..
  • [Display Function] Equipped with a LCD backlit LCD display, it can also be used in the dark, with a maximum display of 1999 counts. And support low battery display, low battery voltage indication ("" symbol ....
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BTMETER BT-6688B Megohmmeter 200 Gig Ohm Digital Insulation Resistance Tester, 500V/1kV/2.5kV/5kV Test Voltage, Auto Ranging, Backlight Display

  • ✅【High Insulation Resistance Tester】Digital Autoranging Megohmeter measures high insulation resistance 0.1M～200G ohms with accuracy 3%~10% + 5 digits..
  • ✅【Wider Testing Voltage】The output testing voltage can be selected from 100V/250V/500V/1000V/2500V/5000V. This Insulation Resistance Tester comes with a non-slip and anti-fall protective case which is insulative..
  • ✅【Safe and Reliable Mega Ohmmeter】 IEC-1010 double insulation, overvoltage category Ⅱ safety standard rated. During any rated voltage measurement, if the measured resistance is less than 5M ohms, the measurement time should not exceed 10 seconds..
  • ✅【Electric Insulativity Test Checker】 This Megohm meter can also measures AC high volt 1V~750V, Frequency Range:40Hz~400Hz,with high voltage measurement LED warning.Ideal for measuring insulation resistance in high-voltage electrical equipment, electricity wiring cable.
  • ✅【2 YEARS QUALITY WARRANTY】BT-6688B 1999 Counts Megameter suitable for measuring the insulation resistance of various electrical equipment and insulating materials such as transformers, motors, cables, switches, electrical appliances, etc. Backed for 1 year warranty for worry-free purchase!.
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OWON HDS242 Handheld Digital Oscilloscope Multimeter 2CH USB TypeC 40MHz 3.5 LCD Test Meter

  • Storing 100 sets of data and 10 waveforms independently. Capable of holding waveform and data during measurement, easy to view and analyze. Displaying historical data and real-time measurement on the same screen with particular record reading mode for easy comparison..
  • Digital multimeter with 200K high-speed A/D sampling, 4000 counts auto-range, one-button switch of graphical waveform display during measurement. High reliability with panel calibration technology and memory calibration, sparing the need for adjustment with potentiometer..
  • Analog broadband range up to: D AC ~ 10kHz, Display hold, storage / readout up to 5 waveforms and 100 sets of measurement values. 128X64 high contrast LCD with LED backlighting. Suitable for working at night. DETECTION ALSO Protect safety.convenient for small capacitors to measure quickly..
  • DC voltage 0 ~ 1000V, AC voltage 0 ~ 750V, DC/AC Current 0 ~ 20A, Resistance 0 ~ 20MΩ, Capacitance 0 ~ 20μf, Frequency 0 ~ 200KHZ, Diode / Continuity Test, Remote control test。 AC voltage bandwidth up to 20KHz. Innovative design for the one-key silent mode, quiet in mastery. Extending battery life with automatic shutdown function..
  • Built-in 500V/20A explosion proof fuse, 20A AC and DC test. 0mf gear position: high capacitance and ....
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Digital Resistance Ground Earth Tester UT501A 1000V Insulation Resistance Tester Earth Ground Resistance Earth Ground Resistance Meter Multimeter Voltmeter Earth Resistance Tester

  • MULTI-FUNCTIONAL MULTI-METER INSULATION TESTER--This insulation resistance tester can measure insulation resistance, AC voltage, etc.
  • HIGH ACCURACY AND STABLE PERFORMANCE DIGITAL EARTH RESISTANCE TESTER--High degree of accuracy, stable performance, easy operation and reliability.
  • MULTI-FUNCTIONAL AND ECONOMICAL SUPPORTS EASIER OPERATION--Support automatic measurement, low battery indication, LCD backlight, alarm light display, alarm buzzer.
  • WIDELY APPLICATIONS FOR DAILY USE--Widely used for insulation resistance measurement for insulation materials and various kinds of electric equipments such as transformer, electric machines, cables, switches, electrical appliances.
  • IDEAL TOOL FOR ELECTRICAL EQUIPMENT TESTING AND INSPECTING--It is a ideal tool for electric equipment maintenance, testing and inspection.
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Diymore STC-3028 AC 110-220V 10A Digital Temperature Humidity Controller Dual Display Thermostat Humidifier Thermoregulator Heating Cooling Switch Digital Hygrometer with Probe

  • Power supply frequency: 50/60Hz, Note: There is no voltage output from the output terminal of the thermostat, the device needs to be connected to a power supply.
  • Temperature measurement accuracy: 0.3 °C.
  • Can be Used for Domestic Water Heater, Freezer, Refrigerator, Aquarium, Homebrewing Beer, Chicken Incubator, breeding, planting ect.etc, also suitable for Laboratories use and other temperature-controlled systems.
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ALL-TEST PRO Motor Genie Deenergized Motor Circuit Analysis Testing Instrument

  • Accurate measurement: In order to improve the accuracy of voltage measurement,Battery capacity testers circuit is specially designed for DC bias. When the terminal is not connected at all, it will display a small voltage, which does not affect the actual measurement.
  • Size:Discharge testers board size is 5x3.4 cm/1.97x1.34 inch, small, easy to carry and store.
  • Power supply voltage:Battery capacity meters power supply voltage: DC4.5-6V (micro USB interface), working current: less than 70mA. Supported current: no more than 3.000A resolution 0.001A.
  • Discharge voltage:Battery meter testers discharge voltage: 1.00V-15.00V, resolution 0.01V. Termination voltage range: 0.5-11.0V.
  • Battery capacity:Battery meters battery capacity range: 9999Ah (1Ah=1000mAh). When the value is large, it is switched by the decimal point shift. When it is lower than 10Ah, it is displayed as X.XXX, and when it reaches 10Ah, it is displayed as XX.XX..
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YXMY2020 Benchtop Digital Resistance Tester AT527 AC Low ohm Meter Battery Internal Resistance Meter for Testing Various Electronic Components

  • This instrument can test 0.0001mΩ~3.3kΩ resistance, 0.00001V~400.000V DC voltage, maximum resistance 33000 display digits, and maximum voltage 800000 display digits. The AT527/527B combines high-precision, high-resolution and ultra-high-speed measurement with 0.5% resistance accuracy and 0.01% voltage accuracy up to 70 times per second..
  • The instrument is used for professional sorting function, standard Handler (PLC) interface, separate output resistance HIGH / IN / LOW signal and voltage HIGH / IN / LOW signal, can fully cope with high-speed automatic sorting system to complete the automatic pipeline test, At the same time, the enhanced IO signal can directly drive the power relay and signal relay..
  • The instrument has built-in RS-232C interface and USB-232 interface. The instrument is equipped with universal data acquisition software, comes with database function and Excel..
  • The export function can be effectively applied to remote control and data acquisition and analysis..
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allsun Digital Insulation Resistance Meters Earth Audio Impedance Tester Handheld Megohmmeter Speaker Voice Resistor Ohmmeter LCD Backlight, Yellow(EM480B)

  • 【MEASURING THE ESSENTIAL INFORMATIONS】 Digital Insulation resistance tester has data hold, auto power off feature. Protection circuit provided, avoid damage caused by discharge voltage. True measurement of speaker systems actual impedance at 1kHz..
  • 【LARGE LCD DISPLAY& TIMER FUNCTION】 Digital Ohmmeter with backlight, max display "1999". It has full function protection, anti high voltage circuit design. Convenient protable battery operation. Low battery indication. Timer function for easier operation. The timer can last about 30 seconds minutes after users press TEST button..
  • 【WIDE MEASUREMENT RANGE】The Digital Megohmmeter has high stability and reliability,test voltage among 250V, 500V and 1000V. Measure Range up to 2000MΩ 1000V with Accuracy of ±(2% of reading +2 digits)..
  • 【EASY TO USE】The Megohmmeter tests voltage can be changed by the rotary switch. LED used as normally working indicator under high voltage condition. High ability to withstand high load. Unit symbol display, easy to use..
  • 【WIDELY APPLICATION】Handheld megohmmeter includes carrying case and belt. Most suitable for the needs of insulation resistance check, such as measuring the impedance of loud speaker,a set of soundssystem,home theater and commercial audio system.Po....
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Digital Battery Tester Battery Load Tester Li-ion Battery Charge Capacity Tester LCD Battery Charger Checker Analyzer Tester Battery Capacity Performance Tester Device Mobile Power Head Test

  • ...(high voltage), accuracy to 0.01V, error ± 0.5%. Current test: 0.05-10.000A, accuracy 0.005A, error ±0.5%. Capacity test: 10Ah, resolution is 0.001Ah.
  • Above 100Ah, resolution 0.1Ah. (Connection method: four-wire detection, separate wiring of voltage and current channels to ensure measurement accuracy.).
  • 【COMPUTER ONLINE】dedicated USB to TTL serial port (Mini USB interface, non-ordinary USB cable) computer control, curve drawing, calibration benchmark test, firmware upgrade, cycle charge and discharge. (Tip: A + V + is connected to the positive battery, A_V_ is connected to the negative battery).
  • 【PACKAGE CONTENTS】1 x Tester, 1 x On-Line Line, 2 x 1 Pairs Test Clip, 1 x Power Cord. (Note: Built-in 24V power module.).
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