Takex US-N2 Tightening Nut, Set of 2 pcs., A set (2 nuts) is Required for each Transmitter & Receiver $27.63 Select
Autonics SCM-US USB to Serial Communication Converter (SCM-38I/SCM-US48I) Built-in Protection Circuit $154.00 Select
Takex US-S25AN Sensor, Ultrasonic, Reflective, Proportional Output, Analog Mode, 60/250mm Range $302.60 Select
Takex US-T04AN Ultrasonic Sensor, Thru Beam, 24VDC, 20-60mm Detecting Distance, Analog, w/Cable, 3ms Response Time, Double Sheet and Seal Detection,(Optional: SUS nut: US-N2) $990.68 Select