Multitester tested for voltage. The ac power cord is included. This is a voltage EQUIVALENT adapter to Waveflex wall mount voltage regulator, power supply, powersupply, inverter, adaptor for plug into a normal household wall plug electrical outlet. Intended for some Waveflex models 6000 and 6000x cpm. Use this adapter and stop using batteries. Photo is generic. Shape, size or color may differ. May be brick-type or wall-type. Please determine compatibility before purchase. Questions are encouraged. S H in the contiguous USA is $5(insured shipping). Please see other interesting items by JGrit. USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 4 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 4 day drop-off time. Thankyou.