DC 100V 1A Voltmeter Ammeter LED Amp Dual Digital Volt Meter Tester Gauge

Description: Visit storeItems for saleAbout usProduct DetailsProduct Feature:1. LED DC high-definition dual display2. Can detect a variety of power supply output voltage and current3. With precision current calibration function, the current accuracy is higher4. High precision, high reliability, suitable for high-end applications5. With reverse connection protection, reverse connection does not burn (positive and negative connections are reversed) Product Specifications:Voltage measurement range: 0.0V-100VCurrent test range: 0-999mAPower supply range: DC4-30.0VVoltage error: ±1%Current error: ±2%Working current: <20mARefresh rate: about 620ms onceDisplay mode: double three-digit 0.28"" LED digital tubeDisplay colors: red+red, red+blue. optionalLead length: 15cmMounting hole: 46*27mmWorking temperature: -10℃~65℃ Pin Description:+ (indicated by the small red line): positive pole of the power supply terminal (connected to the positive pole of the DC power supply)- (represented by the small black line): negative value of the power supply terminal (connected to the negative value of the DC power supply)V (represented by the small yellow line): the positive pole of the power supply to be tested (connect to the positive pole of the power supply to be tested)The big thick red wire drawn out: connect to the negative pole of the loadLarge thick black wire drawn out: connect to the negative pole of the power supply under test Description of the problem during the instructions for use:1. The voltage display is normal, and the current display is 0.00 or 0.0 Make sure the thick black wire is connected to the negative terminal of the battery and the thick red wire is connected to the negative terminal of the load. (Note that the wiring for discharging and charging is not the same, see the concept of load and power at the end). (The meter head uses the original imported chip. It has been tested and calibrated very strictly before leaving the factory to ensure that there is no quality problem 100% before leaving the factory. When the current shows 0, 99.99% of the wiring is wrong, please be patient and carefully check the wiring)2. The current display is inaccurate If it is a direct power supply or an independent power supply and the power supply of the device share the same ground, just disconnect the thin black wire to be accurate.3. Connected to the power supply does not displayAny rectified AC power must be filtered by an electrolytic capacitor of more than 1000uF before it can supply power to the meter.4. Judge whether the header is good or bad (the following are two cases of normal header) Do not connect the shunt, connect the thin red wire and thin black wire to the power supply, the meter with a range of 50A displays 50.0~59.9, and the meter with a range of 100A displays 100~109;Connect the shunt, connect the thin red wire and the thin black wire to the power supply, the meter with a range of 50A displays 0.00, and the meter with a range of 100A displays 0.0;5. Other matters needing attention:The measured current can only be connected to the negative pole of the power supply and the negative pole of the load.Voltage range: The power supply voltage range of the meter head of the 5 wires is 4~28V, that is, the voltage connected to the thin red wire cannot exceed 28V.6. About the concept of load and power supply:When discharging: batteries, switching power supplies, and transformers are power sources, and resistors, lamps, motors, and electrical equipment are loads.When charging: chargers, generators, and solar energy are the power sources, and rechargeable batteries and accumulators are the loads. Precautions:1. Zero adjustment must be done under the premise of no current (it can also be said to disconnect the load first), and then short-circuit the zero adjustment terminal with tweezers or the like.2. When the power supply mode is changed, it must be re-zeroed and calibrated. Package List:digital voltage meter * 1 Payment MethodShipping PolicyFeedbackPayment Method Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

Price: 7.69 USD

Location: Jamaica, New York

End Time: 2025-01-04T06:42:30.000Z

Shipping Cost: 0 USD