Specifications

Features:
1. Waterproof
2. High sensitivity.
3. Less power consumption.
4. High reliability and resonable price.

Specification:

1. Frequency                                       (KHz)                                 40±1

2. Capacitance                                   (pf)                                     2000±10%

3. Ring time                                        (ms)                                   ≤1.2

4. Sound pressure                            (dB)                                   100±5

5. Sensitivity                                        (dB)                                     -73±5

6. Resistance                                     (Ω)                                       500

7. Angle                                               (deg)                                    90±5

8. Driving voltage                               (Vp-p)                                  140

9.Operating Temperature                (°c)                                      -40--+80