120 Series Features: Large .8" LED Display, Primary/Secondary Units Configuration: lb, kg, oz, g, 5 Button Operation, Two Independent Communication Ports (1) Full Duplex (1) Unidirectional or Active 20mA Current Loop. Programmable Ticket Format Up to Two 180-Character Printout, Full Front Panel Digital Calibration and Configuration, Tilt Stand, Three Stage Filtering, Time and Date (Volatile), NTEP Certified.