| Transmitter model | 
                            SS20-TL24 | 
                        
                                            
                            | Receiver model | 
                            SS20-TR24-CH | 
                        
                                            
                            | Detection method | 
                            Through beam | 
                        
                                            
                            | Detecting distance | 
                            7m or less | 
                        
                                            
                            | Detecting object | 
                            Opaque object of dia. 32 mm or more | 
                        
                                            
                            | No. of optical axes | 
                            24 | 
                        
                                            
                            | Detecting width | 
                            460mm | 
                        
                                            
                            | Beam interval | 
                            20mm | 
                        
                                            
                            | Power supply | 
                            24V DC ±10% / Ripple 10% or less | 
                        
                                            
                            | Current consumption | 
                            110mA | 
                        
                                            
                            | Output mode | 
                            Serial output | 
                        
                                            
                            | Response time | 
                            8ms or less (only sensor) | 
                        
                                            
                            | Light source | 
                            Infrared LED (wave length:950mm) | 
                        
                                            
                            | Light-sensitive element | 
                            Photo transistor | 
                        
                                            
                            | Indicator | 
                            Transmitter: M/S indicator (red LED), Power indicator (green LED) 
Receiver: Light reception stability indicator (yellow LED), Power indicator (green LED) | 
                        
                                            
                            | Auxiliary functions | 
                            Anti Interference feature provided for adjacent installation | 
                        
                                            
                            | Switch | 
                            Transmitter: M/S mode switch | 
                        
                                            
                            | Material | 
                            Case: aluminum / Front cover, lens: Acrylic | 
                        
                                            
                            | Connection | 
                            Attacbed cable with connector 0.2m, 0.5mm2 x 4 cores dia.6.8 mm | 
                        
                                            
                            | Weight | 
                            450g or less |