[AC to DC 6V 1A Adapter] ---AC Input: 100V-240V 50Hz/60Hz; DC Output: 6V 1A/1000mA 6W Cable Length: 1.8m. Standard connector size: 5.5mm x 2.1mm DC Polarity: Center Positive (+), External Negative (-) The adapter comes with 3 interchangeable tips (3.5 x 1.35 mm, 5.5 x 2.5 mm, 4 x 1.7 mm) for extended applications. [Professional and reliable]--- C E certification, RoHS approval, built-in multiple protection: over-current, over-temperature, over-voltage, short circuit protection. Provides safe and stable power supply with better conductivity. [Wide Compatibility]--Compatible with most devices requiring 6V output less than 1A/1000mA (0.1A/100mA-1A/1000mA), such as: Omron 5/7/10 Series Blood Pressure Monitor, Omron M2, M3, M4, M6, M10, X2, X3, X4, X, X7, RS1, RS2 HHP-BFH01, HEM-ADPTW5 and other brand blood pressure monitors and other 6V home electronic devices. The adapter adapts to the output current (max. 1A) according to different devices. It is the perfect replacement for all 6 Volt 0-1A/1000mA power supplies. [Money Saving & Long Life ] --- Level VI energy efficiency (15-20% saving on electricity costs compared to level V). Thanks to the compact design of the structure, high-quality materials and intelligent microchip, it offers high energy efficiency and is durable. All adapters are manufactured under strict quality control processes to ensure safe and reliable operation for years. Box contents: 1 x 6V 1A 6W power supply, 3 tips: 4 x 1.7 mm, 5.5 x 2.5 mm, 3.5 x 1.35 mm. 2 years warranty, lifetime technical support. Please check the connector size before purchasing.