EI-300 Ultrasonic stethoscope test kit. Includes hand held 1-1/4" diameter x 9" long stethoscope with 4-1/2" probe attachment, headset and carrying case.

EI-500 Ultrasonic stethoscope test kit. Includes hand held 1-1/4" diameter x 9" long stethoscope with headset and carrying case.

W-7 Ultrasonic stethoscope test kit. Includes hand held pistol with visual meter along with deluxe headset. 4-1/2" probe attachment, airborne attachment, tone generator and carrying case.

EI-701L Ultrasonic stethoscope test kit. Includes hand held pistol with visual meter along with deluxe headset, and airborne leak detector attachment. Same unit as the EG1010 (W-7) less the tone generator, surface probe and carrying case.

Ultrasonic replacement deluxe headset.