Medical YSENT688 Portable tympanometry middle ear analyzer audiometry and tympanometry machine with good price

Measurement Modes

Ipsilateral

Reflex Tone Levels and Accuracy

500 Hz, 1 kHz, 2 kHz, 4 kHz (+/-29%); Configurable over range 70 dB to 100 dBHL (4 kHz restricted to 95 dBHL) +/-3 dB, referenced
to 2 ml calibration volume; Compensates for measured ear volume

Reflex Detection Threshold and Accuracy

0.01 ml to 0.5 ml +/-0.01 ml configurable in 0.01 ml steps

Reflex Analysis

Reflex present/absent at each level tested; maximum amplitude of each reflex (seen on printed report & computer report); pressure
at which reflex was performed

Pressure Used for Reflex Measurement

Pressure at Tympanogram peak,or 0 daPa

Reflex Tone Duration

0.6 seconds

Dimension WxDxH

4.5inx9inx 2.8in(11.5cmx 23 cmx7 cm)

Display

128 x 64 px 18 lines of21 characters

Weight

1.433 Ib (650 g)

Battery

NiMH rechargeable battery pack.

Interface

Wired connection to cradle

Main Power (To Cradle)

100 - 240 Vac 50/60 Hz;0.2 A

Number of Recordings with Full Charge

Up to 100

Auto Power-off Delay

90 or 180 seconds

ldle Current

70 mA

Current While Testing

230 mA