Vandal Resistant Intercom,Elevator Telephone for Emergency ServiceProduct Description:1.Standard Analogue phone2.Robust housing, constructed of stainless steel3.Vandal resistant metal button4.Hands free operation5.P......
| Operating Temperature | -30°C to +65°C |
| Storing Temperature | -40°C to +75°C |
| Ringing Tone | Shrill warble tone 80 dBA @ 1 metre typical |
| M.T.B.F. | excess of 50,000 hours using |
| Dialing | MF (tone) |
| Lightning/Transients | Protection to ITU-T k.21 enhanced levels |
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