Inquiry (采购产品): HotMux Data Logger Q1: What is that 50 cycle or 60 cycle means? Q2: Does 10 channels instead of 8 channels? Additional, I would like to talk about the RS232 port expansion board by phone. Appreciate. **** Hidden Message ***** Wallace Chang 4600 Norris Canyon Rd san ramon, CA 94583 USA Company: Biogenex Lab Title: E.E Phone: 9258662527 E-mail: changw@biogenex.com **** Hidden Message ***** changw@biogenex.com