Product comparison - Diagnostic audiometers

 


240 260 270 270+                            
Compare user features  
Portable  ✔
PC connectivity functionality (USB)  ✔
NOAH compatible  ✔
Thermal printer output  ✔
Internal memory  ✔
Air conduction functionality  ✔
Bone conduction functionality  ✔
Masking (AC + BC)  ✔
Masking Assistant -  ✔
Speech audiometry (live) -  ✔
Speech audiometry (recorded) -  ✔
Sound field output -  ✔
Binaural speech -  ✔
Threshold retention function  ✔
Automatic test (AC) - -  ✔
Talk forward  ✔
Talk back -  ✔
Monitor function -  ✔
Optional insert earphones  ✔
Battery power function / total portability - -  -
Carry case supplied  ✔
Patient response switch supplied  ✔
Mains power adaptor supplied  ✔
Compare technical features  
Frequency range (AC) 125-8KHz 125-8KHz 125-8KHz  125-8KHz
Frequency range (BC) 250-8KHz 250-8KHz 250-8KHz
 250-8KHz
Attenuation range (AC) -10 to 120 max -10 to 120 max -10 to 120 max  -10 to 120 max
Attenuation range (BC) -10 to 70 max -10 to 70 max -10 to 70 max  -10 to 70 max
Output level range (soundfield) Up to 90dB Up to 90dB  Up to 90dB
Insert masking output 90dBHL max 250-4KHz 90dBHL max 250-4KHz 90dBHL max 250-4KHz  90dBHL max 250-4KHz
Attenuation step size (dBHL) 5 5 5/2.5/1  5/2/1
Pure tone signal  ✔
Warble tone signal  ✔
Continous signal -  ✔
Pulsed signal  ✔
Stenger test -  ✔
ABLB test -  ✔
SISI test - -  ✔
Tone Decay test - -  ✔
 HLS Test - -  ✔
 MHA Test - ✔ 
Dimensions (mm) 270 x 165 x 60 270 x 165 x 60 355 x 230 x 100  259 x 374 x90
Weight 735 g 830 g 1.54 kg  1400 g
External PSU  ✔
Optional battery power - -  -