Specification
Shell material: ABS.
Size: about 38 X12.4 mm.
Rated voltage: 10 Vp-p.
Frequency range: 10-50 kHz.
Minimum sound output: 90dB (10cm at 40kHz).
Working temperature: -20 -70 degrees Celsius.

Feature
Easy installation, long transmission distance and good performance.
Waterproof, anti-mosquito, sound pressure, good consistency.

Note:
When measuring manually, there is a small reasonable error range.