Hi, I have a witcolor ultra 9000 and use that sensor , gp1a05 hr thats the one i took for replace, im trying to get the right sensor because i buy fron a company in china the sensor by the number and doesn work on my printer. I youst want to be very secure that thats the one i need. if so please quote me a 10 pieces and the express shipping to Puerto Rico. I dont know wy said the same number but doesnt work. probably not the same voltage. thanks for your help. Carlos Rios

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