Brand New Pro-Wave 400ST Proximity Sensors made by Pro-Wave Electronics in Taiwan. ROHS Approved. Same as Kobitone 255-400ST16-ROX. 10 pcs cost $81.00 on Mouser Electronics.
Electrical Specifications:• Center Frequency (f0): 40.0KHz±1.0KHz• SPL @ f0: 119dB (0dB re 0.0002μ bar) • Bandwidth (-6dB): 2KHz; • Allowable Input Power: 0.2W• Capacitance: 2,400pF±20% @ 1KHz
Mechanical Specifications:• Type: Transmitter - 255-400ST16-ROX;• Operating Temperature: -30°C ~ +85°C• Storage Temperature: -40°C ~ +100°C
Dimensions: 16.20 mm diam; 11.94 mm high; leads 10 mm long; lead spacing 10 mm