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AstroAI Digital Multimeter Tester 2000 Counts with DC AC Voltmeter and Ohm Volt Amp Meter; Measures Voltage, Current, Re Additional Tips - The following incorrect operations may cause the multimeter not to show results: Firstly, the plugs ofBest Value AstroAI New
AstroAI Non-Contact Voltage Tester 12V with Torch, Voltage Tester Pen with LCD Percentage Display, Wire Breakpoint Finde Integrated Voltage tester & Screwdriver - The VTS1000H includes a high-strength steel screwdriver at the tail. This Two-Wintact New
Wintact Non-Contact AC Voltage Detector Pen, 12V-1000V/48V-1000V Dual Range, High/Low Adjustable Sensitive, Live/Null Wi Help You Avoid Dangerous Shock: The fully insulated probe tip eliminates the risk of contacting live electrical wires enKLEIN TOOLS New
Klein Tools A-NCVT-3P Dual Range Non Contact Voltage Tester Pen, 12/70-1000V AC, Flashlight, Audible and Flashing LED Al Versatile Voltage Detection: This Voltage Tester offers non-contact detection of low voltage in security, entertainment,KAIWEETS New
KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Singal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire T 【SAFETY FIRST】- It will send out multiple alarms through sound and light. When the voltage is detected, the tip will senozchillon New
Ozchillon 3–48V Digital Automotive Test Light with LCD Display – Electric Circuit Tester, Voltage Meter, Fuse Checker, C Accurate Digital LED Readout – Test from 3V to 48V DC. This battery tester pen light features a bright digital LED voltmMAEZOE NewMAEZOE USB C Tester Power Meter with Colorful LED Display, DC 4-30V 0-12A Type C Voltage and Current Tester Meter, Batte 【UPGRADED FUNCTIONALITY】 – Features 3 display pages for enhanced performance, allowing real-time monitoring of voltage,BSIDE NewBSIDE Voltage Tester, Non-Contact with 3-Phase Rotation Indicator & Signal Percentage, Rechargeable AC Electrical Voltag [3-Phase Rotation Tester]: Non-contact voltage tester integrated 3-phase rotation meter, it can shows “L” (left) rotatioKLEIN TOOLS NewKlein Tools A-NCVT-1XT Non-Contact Low Voltage Tester Pen, 70V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip Non Contact Detection: This Voltage tester can detect 70-1000V AC voltage in cables, cords, circuit breakers, lighting fBIGTEDDY NewDC 12V LED Digital Monitor Volt Meter Display Battery Gauge Voltage Caravan/Car Simple connection, easy to use.Double Sided Tape ProvidedGIANTZ NewGiantz Step Down Transformer 240v to 110v, 200W Voltage Converter Stepdown Transformers AU-US Home Indoor Power Accessor Efficiently converts 240V to 110V;Dnfnb New2 Pack Non-Contact Voltage Detector, Voltage Tester Electrical Tester, AC 12V/48V/70V-1000V, Wire Tester with Buzzer Ala 【Non-contact Voltage Tester】 Ranging 12-1000V AC, You can easily distinguish the live and null wire through different leDpofirs New12-84V Battery Capacity Indicator Voltage Meter, Battery Monitor Battery Power Indicator Panel for Electric Vehicle Batt [Safe And Power Saving] Ultra low power consumption design, more power saving, ultra wide input voltage, suitable for 12Totholztri NewDigital Multimeter and Voltage Tester Pen Kit, Electrical Testing Tools VERSATILE KIT: Complete electrical testing kit including both a digital multimeter and non-contact voltage tester pen foJectse NewStep-up Voltage Converter,DC-DC Step-up Converter Module,Adjustable Step-up Power Boost Voltage Converter Module with 4A XL6009E1 is a high performance boost module with 4A switching current.RCpow NewRC Cellmeter 7 Digital Battery Capacity Checker Controller Tester Voltage Tester for LiPo Life Li-ion NiMH Nicd Cell Met COMPATIBILITY: Supports multiple battery types including LiPo, Life, Li-ion, NiMH and NiCd batteries for versatile testiLuojinLuoda NewLuojinLuoda 4Pack LM2596 DC-DC Buck Converter - Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency 【Wide Voltage Conversion Range】 This efficient voltage converter handles input voltages from 3-40V while providing adjus22% Off KLEIN TOOLS NewKlein Tools A-NCVT-2P Dual Range Non-Contact Voltage Tester Pen, 12/70-1000V AC, Audible and Flashing LED Alarms, Pocket Versatile Voltage Detection: This Voltage Tester offers non-contact detection of low voltage in security, entertainment,Tbest NewTbest Digital Voltage Tester Pen 90V- Non- Electric Power Detector AC Test Tool Versatile Usage: Suitable for home and electrical industry applications, ideal for testing power cables, circuit breakerVGOL NewVGOL 2pcs XH-M609 Battery Low Voltage Disconnect Module Low Voltage Cut off with Digital Display Disconnect Protection f upply Voltage: DC 12-36V ,Output Voltage: Equal to supply voltage ,Control Precision: 0.1V Power: ?1.5W./Sxhlseller NewStep Up Down Transformer, 300W Adjustable Heavy Duty Voltage Converter 110V‑120V/220V‑240V, to Power Voltage Converter ( HIGH EFFICIENCY AND The use of copper with electrical conductivity higher than the other 50% utilization of transformer,GOWENIC New12V Battery Low Voltage Cut Off Automatic Switch On Under Voltage Controller with LED Indicator This is a under-voltage switch controller used to turn off the power of load in the event of the voltage dropping below19% Off TimeVrinql NewNon Contact Voltage Tester Pen - Adjustable Sensitivity AC Voltage Detector, Electric Volt Pen Tester Pen 12-1000V/48-10 Non Contact Voltage Detector: The default AC voltage tester measurement range is 48-1000V, it can also measure 12-1000VYeanifeana NewYeanifeana Digital LED Circuit Tester, 3-90V Automotive Test Light with Voltage Display, Bidirectional Electrical Tester 【Professional-Grade Voltage Testing】 This Digital LED Circuit Tester accurately measures 3-90V systems, perfect for autoAmtake NewAmtake 3A 72W Universal Power Supply 3V-24V Adjustable Variable AC/DC Adapter Charger,100V-240V AC to DC Converter with Adjustable DC Power Supply: Input: AC 100~240V, 50/60Hz; Output: DC 3~24V adjustable, max. 3A 72W; Easily convert AC 100gernie New200W Voltage Converter Transformer, to/to Power Converter with Circuit Step Up Buck Converter for Hair Dryer, Juicer, Ri Wide Application: Widely used in various industrial or home electrical equipment, such as hair dryer, juicer, rice cookeMENDUNER NewMENDUNER 240W USB C Adapter Power Meter Tester, Wattage, Voltage, Amperage LED Digital Display, Type C Male to Female Ex Multifunctional: Supports PD240w fast charging and 40Gbps transmission, can be widely used for charging, listening, talkBUBUCAM NewRC Lipo Battery Low Voltage Alarm 1S-8S Buzzer Indicator Checker Tester LED for Lipo Life LiMn Li-ion Battery This voltage display is used for lithium battery detection in the range of 1S to 8S, automatically detecting the voltageBUBUCAM NewRC Lipo Battery Low Voltage Alarm 1S-8S Buzzer Indicator Checker Tester LED for Lipo Life LiMn Li-ion Battery This voltage display is used for lithium battery detection in the range of 1S to 8S, automatically detecting the voltageRelogic NewRelogic Electronic Voltage Governor AC Motor Speed Controller Electric Router Exhaust Fan Grinder Drill Variable Voltage Wide Application: The speed controller can regulate speed, temperature, voltage and light, widely used in exhaust fans,Jectse NewDigital Voltmeter Ammeter LED, Voltage Current Meter for Batteries, Motors, Solar Panels, 0.0-100V Measurement Range (10 MAIN APPLICATIONS: Voltage current meter can be used to monitor batteries, solar panels, railway models, motorhomes, mot24% Off Fluke NewFluke 1AC II VoltAlert Non-Contact Voltage Tester Be aware of voltage easily – the tip glows red and a beeper sounds when voltage is detectedDIGISHUO NewDIGISHUO 2pcs LM2596 Adjustable Voltage Regulator 4.0-40V to 1.25-37V DC 36V to 24V to 12V to 5V Variable Volt Power Sup Input Voltage:DC 4V to 40V (input voltage must be 1.5V higher than the output voltage, no boost).25% Off KAIWEETS NewKAIWEETS Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter, Ohm Volt Amp Test Meter and Continuity Test Dio Multi-Function: This multimeter can test AC/DC Voltage, DC (not for AC), Resistance, Continuity, Diode Measurement.13% Off Hoiion NewTravel Dual Voltage Hair Dryer Brush 4-in-1 Mini Hot Air Blow Dry Brush Straightener & Curler Brush, European Plug Adapt 🎄【Dual Voltage &EU Plug】Automatically convert to the local voltage. No need to use convertor or manual fix it to certaiRCpow NewRC Cellmeter 8 Digital Battery Capacity Checker Controller Tester Voltage Tester for LiPo Life Li-ion NiMH Nicd Cell Met Top Brand Tester: This 8 in 1 cellmeter offers precise voltage testing for LiPo, Li-ion, NiMH, and Nicd batteriesJectse New3.0-4.8V to 400KV High Voltage Generator, High Voltage Impulse Generator, High Voltage Impulse Transformer (Small Round) It can be used as high voltage source for high school science experiment, electronic instrument, negative ion generatorAULESSE NewAULESSE 12V 140 Amp Split Charge Relay with Led Voltmeter, Manual/Auto Mode Waterproof Voltage Sensitive Relay, VSR Smar 【Manual State Use Function】In manual model, you can complete the circuit connection and disconnection by pressing the blAlvinlite NewAlvinlite 70W Voltage Converter Adapter|110V/120V to 220V/240V Step Up Down Travel Adapter Power Converter Transformer C Usage: Travel Adapter is mainly used to convert input and output voltage between voltage in different foreign countries,QUMOX NewQUMOX Non-Contact Voltage Tester 12-1000V Adjustable Sensitivity AC Voltage Detector Pen Live/Null Wire Tester Buzzer Al 【Fast and Efficient】The voltage tester can accurately detect the voltage in the circuit, thus distinguishing the neutralGeneric New240V-120V 110V Sinewave Step Down Transformer Electric Voltage Converter 350W AC Voltage: INPUT-240V OUTPUT-120V 110HZQZaoan NewHZQZaoan 2Pack Full Speed 12V Voltage Step-Up USB to 4-Pin PC Fan Sleeved Power Adapter Cable 【Powers 4-Pin PC Fans from USB】: This versatile USB Adapter Cable allows you to power most standard 4-pin computer fansA-DIGISHUO NewA-DIGISHUO 2PCS 100W 5A USB-C PD QC DC 5V 9V 12V 15V 20V Adjustable Voltage Power Trigger Module 5A Type-C Female Input Supports QC3.0 and QC2.0 voltage decoy output, with freely switchable modes.Zopsc NewUSB Tester Type C Multimeter Voltage Current Meter Power Volt Ammeter DC430V 012A, 0.77in HD Display, Drop Resistant Cas [Wide Compatibility] Supports multiple tests, real-time charging power detection, and fast charge testAstroAI NewAstroAI Digital Clamp Meter Multimeter 2000 Counts Amp Voltage Tester Auto-ranging with AC/DC Voltage, AC Current, Resis Versatile digital clamp meter: accurately measure AC current(DO NOT MEASURE DC POCKET)! AC/DC voltage, capacity, resistaintendvision NewVoltage Tester AC 12-300V Non-Contact & Contact Voltage Detector Electrical Test Pen Wire Breakpoint Finder with NCV, Co 【Visual & Audible Alarm】This voltage tester will send out a visual and audible alarm when voltage is detected. When theBSIDE NewBSIDE Voltage Tester Non Contact Voltage Detector Electrical Circuit Tester Pen, with Test Leads for Capacitance Diode C [Red/Green Backlight]: The pocket ac voltage tester has a large LCD display, with red/green backlight, very easy to readNatruss NewNatruss 70W Step-Up&Down Voltage Converter Transformer Power Converter (Type C Plug, White) Dual channel voltage Converter from 110/120V to 220/240V, also can change from 220/240V to 110/120VKAIWEETS NewKAIWEETS Digital Clamp Meter T-RMS 6000 Counts, Multimeter Voltage Tester Auto-ranging, Measures Current Voltage Tempera True-RMS clamp meter: This multimeter can accurately measure AC/DC Current, AC/DC Voltage, Frequency or Duty Cycle, ResiLyhaogao New8-in-1 Professional Wire Stripper and Cutter Tool with Voltage Tester,Heavy Duty Electrician Pliers for Stripping, Cutti 【8-in-1 Multi-Functional Wire Stripper & Cutter】: This 8-in-1 wire stripper and cutter with voltage tester combines striTAVICE New12V Volt Meter Dual Battery Monitor LED Digital Car Boat Voltage Marine Gauge AU [𝗗𝗨𝗔𝗟 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 𝗠𝗢𝗡𝗜𝗧𝗢𝗥𝗜𝗡𝗚] – Designed to simultaneously display voltage readings for two 12V batteriEMSea NewEMSea 125mm Profession Insulated Electrician Slotted Tester Pen 100V-500V AC Testing Voltage : 100V-500V | Tip Type : Slotted | Overall Length : 138mm.OVAQUIXI NewOVAQUIXI KWS 1802C Type C Voltage Current Power Meter, Plastic Digital Multimeter 0-5.1A 4-30V for Phones and USB Device [Precise Measurement]Test voltage and current from 4 to 30 volts and 0 to 5.1 amps, providing accurate readings for your18% Off SOKOO NewSOKOO 230-Watt Step Down 100-220V to 110V Voltage Converter, International Power Converter/Travel Adapter- Use for EU/UK Patented product with Patent number: US10270355B1,it has New Feature: Compatible with hair straightener, curling wand, eEngineR NewHigh-Precision Digital Multimeter - AC/DC Voltage Tester, Current, Resistance, Continuity, Car Battery Tester, Portable High-Precision & Safety First: Experience reliable and accurate measurements of AC/DC voltage, current, resistance, contBESTEK NewBESTEK Voltage Converter 110V to 230V Step Up Transformer with 4-Port USB Charging US/EU/AU Adapter UK to US Travel Char BESTEK Step Up Transformer: Convert all countries voltage to UK voltage (230V), provides 200 watts continuous power withQCCAN NewQCCAN Type-C Tester Power Meter, 4-30V 0-12A Digital Multimeter, OLED Large Screen Type-C Interface Voltage and Current 0.77 INCH SCREEN DISPLAY: Sporting a sleek 0.77 inch ISP high-definition display, it offers remarkable resolution and crFainWan NewFainWan 2pcs DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-Voltage Generator High pressure type: the type of pulse current Output voltage: 400000 v(Please pay attention to safety)Key Power NewKey Power 230-Watt Step Down 220V to 110V Voltage Converter & International Travel Adapter/Power Converter with USB-C Po MakerHawk NewMakerHawk USB Multimeter USB Voltmeter Ammeter Load Tester USB Voltage Current PD Battery Power Capacity Charger Digital 【Guide description】: https://www.youtube.com/watch?v=T8AchDV0UzY. The Video of Changing Language Link: https://drive.gooReland Sun New5pcs LM2596 DC Step Down Converter Voltage Regulator LED Display Voltmeter Buck Adapter Adjustable Power Supply 5pcs LM2596 DC Step Down Converter Voltage Regulator LED Display Voltmeter Buck Adapter Adjustable Power SupplyAutel NewAutel PowerScan PS100 Automotive Circuit Tester, Power Circuit Probe Tool, 12-24V Electrical Short Open Breaker Circuit 🥇【2026 ALL-IN-ONE POWER CIRCUIT TESTER KIT---ACCURATELY】Autel PowerScan Circuit Tester is most accurate power circuit pATNSINC New4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply ❃❃The input voltage: DC 3 -40 V (Input voltage must be 1.5 V higher than the output voltage, no boost.)Electop NewUSB Power Meter Testers, Multi Functional 2 in 1 Type C USB Tester, LCD Digital Multimeter, Voltage,Current, Power Capac Multi Functional Tester: Multiple interfaces (USB input/output, Type-C input/output and Micro USB input),Used to detectsGeneric NewCurrent to Voltage Converter, Wide Supply Voltage Range High Accuracy Stable Industrial Grade Module for Signal Detectio [Adjustable Full Scale] Using advanced production technology, adjust the 0 point and full scale to meet your specific neCEM NewCEM AC-6 50V-1000V Non-Contact Voltage Detector, Portable AC Voltage Tester Pen, Electrical Tester for Circuit Breakers, ⚡【NON-CONTACT AC VOLTAGE TESTER】- The AC-6 non-contact AC voltage detectors is used to detect whether there is AC voltagLyhaogao New20pcs Low Voltage Fastlock Wire Connectors,12-14 Gauge Waterproof Electrical Connectors for Outdoor Landscape Lighting, 【Premium Quality & Durability】: Our Low Voltage Fastlock Wire Connectors are crafted from corrosion-resistant ultra-stroYotsuba NewYotsuba Electrical LCD Digital Multimeter Ohmmeter Multi OHM Tester AC DC Voltmeter Volt Amp and Diode Voltage Tester Me Easy to operate and the readings indicated directly on the screenAreyourshop NewAreyourshop Power converters 8-40V to 12V 10A DC Voltage Stabilizer Car Power Supply Regulator Waterproof Power Adapter * Waterproof, dustproof, shockproof, small volume, simple installation.Asixxsix NewElectronic Voltage Regulator, AC110/ AC Voltage Regulator, High Power High Current Temperature Regulation(Australian reg With a peak voltage absorption circuit, it effectively protects the high-power SCR anti-surge, anti-spike, RC absorptionGeneric NewPAC 500W Step Down & Step-Up Voltage Converter Power Transformer 240V -110V/120V/100V & More Efficiently converts 240V to 110V/120V and 100V; Thermal Cut Protection; Works with both 50 and 60Hz frequency; Step-dowA-DIGISHUO New10Pcs Type-C MT3608 2A DC-DC Boost Converter Adjustable Module Voltage Regulator Board Input Voltage 2V-24V to 5V-28V Ou *MT3608 DC-DC Boost Converter: with Type-C USB voltage input, easy to use and regulate voltage.Yeanifeana NewYeanifeana 30pcs Waterproof Low Voltage Fast Lock Wire Connectors for 12-14 Gauge Cable, Ideal for Outdoor Landscape Lig 【Premium Low Voltage Wire Connectors】 Crafted with corrosion-resistant nylon and nickel-plated brass pins, these waterpr15% Off VCE NewVCE Low Voltage Mounting Bracket (1 Gang, 5 Pack) for Single Gang Wall Plate, Telephone Wires, Network Cables, HDMI, Coa VCE single gang (1-gang) low voltage mounting brackets - black (pack of 5).Marhynchus NewVoltage Converter DC 12V 24V to 5V 5A LED Power Supply Reducer Regulator Transformer Module Materials: The voltage converter selects materials, with good quality, excellent working performance, not easy to damageAribrnten NewAribrnten 12V VSR Voltage Sensitive Relay Car Intelligent Dual Battery Controller Isolator Car Battery Relay for RV Mari The VSR connects and disconnects the auxiliary battery and starts the battery while the engine is running according to tLONELY BINARY NewLonely Binary 6-Pack XL6009 Step-Up Boost Converter Adjustable DC-DC Voltage Regulator Module (Input 3.8V-32V, Output 1. ✅ 【6-Pack Value Bundle】Ideal for prototyping, multiple projects, educational use, or professional applications15% Off VCE NewVCE Low Voltage Mounting Bracket (1 Gang, 5 Pack) for Single Gang Wall Plate, Telephone Wires, Network Cables, HDMI, Coa VCE single gang (1-gang) low voltage mounting brackets - black (pack of 5).SHAVINGFUN NewDigital Multimeter,Voltage Tester Electrical Tester 2000 Counts, Ranging Multi Meter Voltmeter Measures Current, Voltage 【2000 Counts Digital Multimeter 】 - The digital multimeter features 1999 counts auto-ranging for accurate measurement ofSongholee New2Pcs Electrical Circuit Tester Pens - 2-in-1 High Torque Strong Magnetic Screwdriver Electricity Detector, Magnetic Scre 【Dual-Use Functionality】Featuring both an electric pen and a screwdriver, this tool allows for seamless switching betwee20% Off Sorandy NewSingle Phase Energy Meter Tester Rail Electricity Usage Monitor AC 40-300V 100A LCD Voltmeter Ammeter Voltage Amps Watt 【LCD Display】Single phase meter tester with full-view color LCD, 178° wide viewing angle. Built-in transformer for accurインディーズ NewProject VOLTAGE 18 Types / Songs Collection (Original Soundtrack) Project VOLTAGE 18 Types / Songs Collection (Original Soundtrack)Fluke NewFluke Non-Contact Voltage Tester LED light with 100, 000 hour life1PZ New1PZ USB-B36 5V 3A USB Buck Converter, 12V/24V to 5V DC-DC Step Down Power Supply Module, Voltage Regulator with USB Port 【Compatibility】Compatible for Samsung Galaxy iPad iPhone 4S 5 6/6 Plus and so onSenzooe New10Pcs DC 5V Power Converter Mini Voltage Buck Regulator DC 4.5-20V 12V 9V Step Down to 5V Reducer Transformer Board 3A 1 10Pcs DC 5V Power Converter Mini Voltage Buck Regulator DC 4.5-20V 12V 9V Step Down to 5V Reducer Transformer Board 3A 1EVTSCAN NewEVTSCAN Digital Adjustable DC Voltage Protection Module, for 12V to 36V Lead-acid, Lithium-ion Batteries, Over Discharge Ultimate Battery Protection: Safeguard your 12V to 36V lead-acid and lithium-ion batteries with precision. Our module ofBIGTEDDY NewDC12-36V Battery Over Discharge Protection Module Low Voltage Cut-Off XH-M609 Automatic shut off. Protection against discharges.Wiha NewWiha Non-Contact Voltage Tester Category IV 12-1000V AC with Flash Light - 25506 LED In plastic tip illuminates red and emits audible warning for safe voltage detectionTHLY NewDC Buck Converter 24V to 12V 10A 120W Step Down Transformer with Fuse Waterproof, Voltage Reducer for Golf Cart LED Ligh [DC Buck Converter] This Step Down Transformer 24V to 12V converts the DC 24V into DC 12V. Low power consumption. VoltagHilitchi NewHilitchi 150-Pcs 15 Value High Voltage DIP Ceramic Capacitor Assortment Kit - 2KV 2000V 100pF to 10000pF ☛ High Quality High Voltage Ceramic Capacitor Assortment KitJectse NewJectse 6V-12V DC 60KV High Voltage Generator, Impulse Transformer, Science Experiment, Electronic Instrument, Battery Po The module can output high voltage pulse current, small size and high efficiencyDOACE NewDOACE 2018 Upgraded C11 2000W Voltage Converter for Hair Dryer, Hair Straightener, Flat Iron, Set Down 220V to 110V Inte Pomya NewUSB C Power Meter, USB C Multimeter Voltage and Current Tester 0-12A 4-30V for Phone Charging, LED Display [High Current Support] This Type C power meter can handle up to 12A of high current, making it suitable for various mobitunghey Newtunghey DC-DC Stabilizer, 15V-90V to 12V Boost Buck Converter 3A 36W Waterproof Auto Step Up Down Voltage Regulator 12V 💗【PARAMETER】: DC-DC converter input voltage range is DC 15~90V ; output voltage is DC 12V; output current is 3A; outputKHADBXCP New3pcs DC 3v-6v to 400kV 400000V Boost Step-up Power High-Voltage Generator 3pcs DC 3v-6v to 400kV 400000V Boost Step-up Power High-Voltage GeneratorAreyourshop NewAreyourshop Waterproof DC to DC Converter Regulator 12V to 48V DC Step Up Converter 4A 192W Voltage Converter *1: Four Smart Production: embeded Smart Chips provide 4 protection-Overcurrent Protection/Overheated Protection/Short CMORNING GROUP NewAC Current Voltage Amperage Power Energy Panel Meter LCD Digital Display Ammeter Voltmeter Multimeter with Split Core Cu 1.Digital Multimeter:This power energy meter can measure and display voltage current active power energy frequency and p