Replacement Sensor
Replacement Sensor at HorticultureSource.com -
Oakton Replacement Sensor (OK3542550) Replacement sensor for Oakton Waterproof Multiparameter Testr TM 35-series Pocket Meters (OK3542500 and OK3542505). Manufacturer's Product Information MSRP each $ 104.95 Dimensions 6 x 1 x 10 Case Quantity 1