เกจมิเตอร์ดิจิทัล dc 0-100 v 3 - สายขนาดเล็ก ไฟ led สีฟ้า แดง เขียว เหลือง สําหรับวัดแรงดันไฟฟ้า 0.28 นิ้ว 0.28 inch DC 0-100V 3-Wire Mini Gauge voltage meter Voltmeter

0.28 inch DC 0-100V 3-Wire Mini Gauge voltage meter Voltmeter LED Display Digital Panel Voltmeter Meter Volt Detector Blue Red Green Yellow Range DC DC0-100V, 2 and 3-wire products Universal, to break the routine voltmeter, is the latest design, can work directly in 5V, 9V, 12V, 24V and other circuits, without regulation. With three wiring, easy access to car /battery car / motorcycle-car line, with reverse polarity protection, line reversal will not burn. For monitoring thebattery voltage, battery voltage state to grasp, it can also be used for other products voltage measurementpurposes. Note： 2 line with the highest input voltage can not exceed 30V, otherwise there is the risk of burnt. NOTE: Three-line voltage range 0-100V, but also can be used as second-line use in 40V voltage to within Please see the picture for wiring diagram Technical parameters： 2 line working voltage: 4.0~40V (with reverse protection function) 2 line detection voltage: 0.0~40V 3 line working voltage: 4.0~40V (with reverse protection function) 3 line detection voltage: 0.0~100V Working current: <20mA Display mode: 0.28 "LED, Mounting hole: 23 x 10 mm The measurement rate: more than 200mS/ times Measuring accuracy: 3 per thousand Limit working condition： Low working voltage: +4.0V Maximum working voltage: +40V Working temperature: -10 ~ +65 Working humidity: 10 ~ 80% (no condensation) Working pressure: 80 ~ 106kPa No direct exposure to sunlight Main features: 1. product stability, high accuracy 2. standard size, easy to install 3. power supply with polarity protection circuit Before purchase: 1. All the goods are in stock and we will dispatch immediately if we receive the order. 2.Please read the item description, if you have any question, do not hesitate to contact us. 3.Use the vouchers for more saving. Shipment： 1.1-2 days to ship(except for the pro-order item) After purchase: 1.If you are satisfied，please give us 5 stars praise. 2.Please contact us before you are going to give us bad review. We are helpful and will solve the problems. if you receive a defect item,please contact us at once with item picture or video #0.28 #inch #DC #0-100V #3-Wire #Mini #Gauge #voltage #meter #Voltmeter #LED #Display #Digital #Panel #Voltmeter #Meter #Volt #Detector# Blue #Red #Green #Yellow