ขาย เครื่องวัดแรงดันโวลต์มิเตอร์ดิจิตอล DC 3~30V LED สำหรับรถยนต์ สีน้ำเงิน ราคาที่ดีที่สุด

3~30V DC 0.4" Digital Voltmeter Panel Meter Car Motor Blue LED Brand New!!! Specifications: Material: Plastic Color: Black LED Light Color: Blue Display: Three 0.4 " LED Digital Tube Size: As the picture shown Measure range: DC3-30V (Do not need Power Supply, Measure 3-30V directly ) Maximum Input: DC30V Permissible Error: 1% (+ / - 1 Digit) Refresh rate: about 500mS Current consumption: about 5-20mA Operating temperature: -10 °c ~ 65 °c Quantity: Pack of 1 Features: -100% brand new and high quality -Voltmeter with epoxy potting, Oil Pollution Prevention, Moisture-proof, Shockproof, Dust-proof -With Reverse polarity protection Notes: -Please check the size measurement chart carefully before making a payment. -Please allow 0.1-0.5cm difference due to manual measurement. -The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. -Instruction is not included. Package Includes: 1 x Digital Voltmeter