Check the listing for details. Programmable 4 digit Red LED AC/DC Amp/Current meter. Condition: New. Listed at 32.00 USD. Digital Programmable AC/DC Volt meter (Red LED) Built-in Dual Alarm Control Ideal for Golf Cart, Car, Boat, Wind mills, Solar Panel Support from -1999 to 9999V This is a programmable voltmeter with dual output control: upper and lower limit. With this function, it helps to protect your costly equipment like a thousands dollar stereo system or dc motor from the damage of over or under voltage. More, it's a dual mode Volt meter that support both AC and DC voltage range from 0~500V in four ranges. Built in 3 level of filtration system to eliminate noise interference from the motor or from the cable in some application. Specification: Input: AC/ DC 500V,100V,10V,1V * Display: 4 digit red LED display Isolated power supply Frequency response: 0-400Hz Overload: "EEEE" Filtration: 0,1,2,3 Dual relays output for controls (250V,3A) Power: DC9V~30V ( 2Watt) Size: 79mm * 43mm * 58mm Cutting: 76mm * 39.5mm 0-20mV data output (optional) *Note: Default is 500V. You can extent the range using a proper transformer or stepping down dc-dc converter for ratio exchange.. Shipping and Return: Most order shipped within 1 business day. Estimated shipping time: For USPS first class mail, 3-5 days. For USPS priority mail, 2-4 days. For USPS priority express mail, 1-2 days. Sometimes a couple days delay may happen due to holidays, or adverse weather. All our products are carefully packed to avoid potential shipping damage. All DOA must be reported in 5 business days or will not be considered afterward. REFUND: We accept return for refund within 7 days starting from the day the package is delivered. No more refund is granted after 7 days of delivery. The return items must be in brand new or no sign of use condition. Buyer's responsible for all shipping cost to ship the items back to us. S&H is non-refundable for all refund. EXCHANGE: We carry a 30 to 180 days warranty to most of our products. Please contact us if the item is eligible for an exchange. We reserve the rights to decline all exchange items.