eBay

COMPATIBLE WITH MULTIPLE MODELS: Precision blood monitor as an alternative power source. Power adapter is also compatible with multiple models, including all Omron Series blood pressure monitors.
CONVENIENT EXTENDED REACH CORD: The extra long power cord is 3.3ft (100 cm) in length allows the blood pressure monitor to be used in most locations for added convenience.
DC Jack: Barrel Plug 5.5x 2.1mm (Center positive); with Free Connector Adapter (5.5x2.1mm Female to 4.0mm male)
Full Production, Over-Voltage, Over-Current, Over load, Short Circuit Protection
INPUT: 100-240V AC, USA wall plug; Output: DC 6V1A (1000mA)

Kindly reminder: Please make sure the DC output and tip size (5.5mm and 4.0mm ) of AC adapter is accordant before you bid. !
Specifications:
Input: 100-240vac 50/60Hz
Output: 6 volt 1 amp
Working efficiency: 85%
Voltage regulation: 2%
Output ripple: 100mVp-p
Modulation method: Pulse width modulation
Product solutions: IC chip built-in.
More detail:
100% good quality, high efficiency, stable
Suitable for all kinds of brand’s set-top boxes, attendance machines, routers, game consoles, repeater, players, mini speakers, headphones, etc
Lead Free & RoHS compliant
Package Content:
1x 6V1A Power Supply Adapter
1x Free 1 pc cable (5.5 mm female to 4.0mm male)