-40%
David Clark model H6740-51
$ 131.47
- Description
- Size Guide
Description
Model H6740-51Behind the Head (BTH) Style - No Adapter Needed
Connect directly to portable radio with no adapter required
Rated Intrinsically Safe with FM Approval (Approved to IS / CSA / ATEX / IECex standards)
Marine-grade, stainless steel hardware and rugged construction
BTH style for applications requiring hard hats or protective headgear
PTT button conveniently located on headset ear dome
Undercut, Comfort-Gel ear seals for maximum comfort
Durable 6-foot extended coil cord terminated with radio-specific connector
Part Number:
40416G-51
Parts List
6700 Series Radio Direct Intrinsically Safe
Noise Attenuation Data
NRR
23 dB
Frequency (Hz)
125
250
500
1000
2000
3150
4000
6300
8000
Attenuation (dB)
14.1
21.9
29.4
32.0
29.7
35.2
36.2
38.1
37.4
Standard Deviation
2.5
2.5
3.0
2.7
2.2
1.7
2.5
2.9
2.8