| Detection method | Through beam | 
|---|---|
| Detecting distance | 7m | 
| Detection object | Φ1mm or more Opaque | 
| Power supply | 12 to 24VDC ±10% / Ripple 10% or less. | 
| Current consumption | Transmitter: 20 mA or less. Receiver: 25 mA or less. | 
| Output mode | Control output : PNP open collector output Rating: source current 100 mA (30 VDC) or less. Stability output : PNP open collector output Rating: source current 50 mA (30 VDC) or less.  | 
                        
| Operation mode | Light ON/Dark ON selectable | 
| Response time | 0.5ms or less. | 
| Operating angle | 30° (at receiver) | 
| Light source (Light wavelength) | Red semiconductor laser (650 nm) Class 2  | 
                        
| Indicator | Transmitter: Power indicator (green LED) Receiver: Operation indicator (red LED) Stability indicator (green LED)  | 
                        
| Volume (VR) | SENS: sensitivity adjustment (at receiver) | 
| Switch (SW) | Light ON/Dark ON selector switch provided | 
| Short circuit protection | Provided (for control output only) | 
| Material | Case : Polyarylate Lens : Acrylic  | 
                        
| Connection | Cable type (outer dimension: dia. 4.2) Transmitter: 0.3 mm2 2 cores 2 m (gray) Receiver: 0.2 mm2 4 cores 2 m (black) -J type: M8 connector connection  | 
                        
| Weight | Attached cable type: approx. 80 g (transmitter/receiver) / -J type: approx. 25 g (transmitter/receiver) | 
| Notes | Mounting bracket, operation manual, warning label *1, instruction label *1 Excepting LD-T20R-C1 and LD-T20RPN-C1.  | 
                        
Mounting bracket, operation manual, warning label *1, instruction label *1 Excepting LD-T20R-C1 and LD-T20RPN-C1.
| Ambient light | 5,000 lx or less | 
|---|---|
| Ambient temperature | -10 - +55 ℃ (non-freazing) | 
| Ambient humidity | 35 - 85%RH (non-condensing) | 
| Protective structure | IP67 | 
| Vibration | 10 - 55 Hz / 1.5 mm double amplitude / 2 hours each in 3 direction | 
| Shock | 500 m/s2 / 3 times each in 3 directions | 
| Dielectric withstanding | 1,000 VAC for 1 minute | 
| Insulation resistance | 500 VDC, 20 MΩ or higher |