The frequency is 200 kHz, the diameter of the piezoelectric element is 20 mm. For shadow control method. Replaceable polyurethane protector. Marking according to GOST P113-0.2-20.
The frequency is 800 kHz, the diameter of the piezoelectric element is 14 mm. For shadow control method. Replaceable silicone protector. Marking according to GOST P113-0.8-14.
The frequency is 1.25 MHz, the diameter of the piezoelectric element is 14 mm. For shadow control method. Replaceable silicone protector. Marking according to GOST P113-1.25-14.
The frequency is 1.8 MHz, the diameter of the piezoelectric element is 14 mm. For shadow control method. Replaceable silicone protector. Marking according to GOST P113-1.8-14.