Base Model 203 InnovaSonic Economical Ultrasonic Transit-Time Flow Meter Model 203 InnovaSonic Economical Ultrasonic Transit-Time Flow Meter Don't see what you need? Interface Push-button tactile keys and integral display Push-button tactile keys and integral display Don't see what you need? Enclosure Polycarbonate, IP 65, ABS/PC enclosure Polycarbonate, IP 65, ABS/PC enclosure Don't see what you need? Outputs OCT, Relay, RS-485, 4 to 20 mA current loop, Modbus RTU (In stock. 3 day lead time) OCT, Relay, RS-232, 4 to 20 mA current loop Don't see what you need? Transducers & Cable Clamp-on transducers, 30 foot (9 m) standard cable length, 32°F to 140°F (0°C to 60°C). In stock. Clamp-on transducers, 50 foot (15 m) cable length, 32°F to 140°F (0°C to 60°C). 30 day lead time. +$160.00Clamp-on transducers, 100 foot (45 m) cable length, 32°F to 140°F (0°C to 60°C). 30 day lead time. +$400.00Don't see what you need? Certificates No thanks, I don't need additional certificates. 5-point calibration certifiction traceable to NIST. Add 2 weeks to standard delivery. +$496.00Don't see what you need? Accessories No thanks, I don't need accessories at this time. Additional Hard Copy instruction manual +$22.00Coupling compound (2 x 113.5g tubes) Sil-glydeÂ®. 30 day lead time +$22.00Don't see what you need?