I. Ultrasonic Sensor EFR-40/48/58RS15.5B1
Applications:
1. Ultrasonic distance measuring.
2. Ultrasonic transmitting and receiving for the against and natural calamities against equipments.

II. Characteristics:
1. High sensitivity, high reliability, high stability.
2. High and low temperature resistance, humidity resistance, shock resistance, vibration resistance, etc.

III. Specification:
Nominal Frequency ( KHz ) 40/48/58± 1
Capacity ( pf ) 2000± 15%
Ring Time ( ms ) ≤ 1.2
Sound Pressure Level ( dB ) 100± 5
Sensitivity ( dB ) -73± 5
Resistance ( Ω ) 500
Directivity ( ° ) 100× 60
Max. Input Voltage (Vp-p ) 150
Operating Temp. Range ( oC ) -30± 80
Storage Temp. ( oC ) -40± 85
Weight ( g ) 3.8