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UNI-T UT139C True RMS 2.6" LCD Digital Multimeter Electrical Handheld Tester Multimetro LCR Meter Ammeter Multitester UT139 Series digital multimeters are newly designed to offer users better performance and higher safety rating. Totally over-load protection and unique structural design make it new type of multimeter with high performance/ price ratio and a best choice for electricians used in electrical maintenance and repairing. UT139 series is high reliability, high security, automatic measurement range modern digital multimeters . With synchronous display function with super large screen digital and high resolution analog pointer, full range overload protection and unique appearance design; And with the frequency converter VFD measurement function, can be stable measurement of high frequency interference signal frequency or current situation; Combined with true RMS measurement, data storage , relative measurement, maximum / minimum, under pressure prompt, backlight and auto power off function, which becomes more superior performance of electrical instruments. It is suitable for measurement of smelting, communication, manufacturing, petroleum, national defense, university, electric power, chemical industry and other industries. It’s an ideal tool for the maintenance and repair of the circuit , power equipment. Non-contact voltage Test, Principle of magnetic or electric field sensors to determine if voltage is present, similar to induction test pen function without direct contact and test probes charged. Used to find buried live wires inside the wall or find a buried wire disconnected.VFCfunctions: filter out high frequency jamming signal, accurate measurement data. For variable-frequency motor application failures that may occur and effective detection and troubleshooting. SpecificationsRangeBest AccuracyModel　 UT139CDC Voltage(V)60mV/600mV/6V/60V/600V±(0.5%+2)AC Voltage(V)60mV/600mV/6V/60V/600V±(0.7%+3)DC Current(A)600μA/6000μA/60mA/600mA/6A/10A±(0.8%+2)AC Current(A)4600μA/6000μA/60mA/600mA/6A/10A±(1%+3)Resistance(Ω)600Ω/6KΩ/60KΩ/600KΩ/6MΩ/60MΩ±(0.8%+2)Capacitance (F)9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF/99.99mF±(4.0%+5)Frequency(Hz)9.999Hz～9.999MHz±(0.1%+4)Temperature(°C)-40 °C ～ 1000°C±(1.0%+3)Temperature(°F)-40°F～1832°F±(1.5%+5)FeaturesDisplay Count　 5999Auto Range　 √ Manual Range　 √ Duty Cycle 0.1% ～ 99.9%√True RMS　 √ Bandwidth（Hz）　 45Hz~1kHzVFD　 √ Diode 　 Around 3VNCV　 √ Auto Power OffAround 15minutes √ Continuity Buzzer　 √ Low Battery Indication≤2.4V√ Data Hold　 √ Relative Mode　 √ MAX/MIN　 √ Input Protection 600Vrms√ Input Impedance for DCV1GΩ Max√ General CharacteristicsPower AA1.5*2 (Battery was not included for air shipping)LCD Size 58 X 36 mmProduct ColorRed and GreyProduct Net Weight370gProduct Size175 X 80 X 48.5 mmStandard AccessoriesBattery、,Test Lead, Temperature Probe Standard Individual PackingGift Box ,Carrying Bag, English ManualTemperature TestShipping: We will ship all items within 1-3 working days upon receipt of payment,our goal is: send faster and been received earlier . Standard Shipping: To USA,UK and Australia by ePacket,need 7-12 working days. Expedited/Standard Int'l Shipping by Fedex,DHL,TNT and EMS courier: To USA,need 3-6 business days,To other countries,need 4-8 business days normally. But sometimes int'l delivery is highly depended on the courier company and local customs/duties. Import duties and taxes are not included in the item price or shipping charges.These charges are the buyer responsibility. Warranty&Return Policy: We encourage all customers to communicate with us through eBay messages. If you have any questions or comments whatsoever regarding our products or listing, we are waiting to hear from you A 1 year warranty is offered for this product.If the product malfunctioned under proper usage per instructions manual within the warranty period, please contact us to obtain shipping instructions and send it back at your shipping costs. 30 days evaluation and investigation takes placed after receiving your return item.A brand new replacement unit will be sent to you at our shipping costs if it meets our warranty On Nov-11-18 at 20:30:44 PST, seller added the following information: