Brand Name: VOLKSTEC Origin: CN(Origin) Model Number: OFI-6 Identified Wavelength Range: 800 to 1700nm Detector: 1mm InGaAs 2pcs Signal Direction: Left & Right LED Optical Power Reading: -40dBm to 10dBm Power Supply: AA * 2 Operating Temperature: -15°C to 60°C Storage Temperature: -25°C to 70°C Weight: 235g Dimension: 195mm*10mm*8mm