The casing is made of SUS304 stainless steel. The keyboard made of kirsite has a service

time more than 2 million times and its waterproof grade is IP67. The handset made of PC

engineering plastic and the line made of teflon provide clear and stable  communication.

Magnetic induction switch is for the hook.

Features:

- When handset is off-hook for 3 seconds, the phone will automatically call the pre-set
number without dialing.
- One telephone number available for speed dial.
- One on-off output for coordinating with alarm and surveillance.
- When the calling party hangs up, the phone will hang up automatically.
- The communication time is limited and time length is adjustable.
- Auto hang up if the handset is not put correctly.