Metrix 260B-S1 Pmc/Beta Vibration Transducer $945.00 https://www.ebay.com/itm/381311429827?hash=item58c7eeacc3:g:…
Pmc/Beta Vibration Transducer Sensor Model162Vtra-2 20Ma=0.8Ips $959.65 https://www.ebay.com/itm/114645831390?hash=item1ab16c8ede:g:…