Bird Thruline Wattmeter 43 PEP Peak Module For sale, Bird Electronic PEP SSB Module 4300-400 (Like new) Conversion Kit for Model 43 Wattmeters. This advert is for AN ORIGINAL BIRD peak board. 9 V Battteries are not incluided in order to reduce the weight of the parcel. YOU PUT THE PRICE (NO SILLY ONES PLEASE!!) Pay pal is acccepted. I ship worldwide.