Koontech Wireless telephone tower KNEM-21 GSM

Product Application

Specifications

1. Network Interface: GSM Frequency ：850/900/1800/1900MHZ

2. Ringing: Through internal Speaker/ringer

3. Power Supply: Re-chargeable Battery powered: 9V/14Ah, Solar back-up: 12V/30W

4. Time out: selectable 0-20 minutes

5. Temperature: -20℃~ +60℃emp

6. Relative Humidity: up to 90%

7. Built-in battery Standby: 21days

8. Built-in battery talking time: 21 hours

Main Features

1． Matell body, solid and temperature bearable

2． Handset free, loudspeaker,

3． Heavy duty Vandal resistant buttons.

4． With or without keypad optional

5． Lightning protection standard to ITU-T K21

6． Waterproof grade about IP55

7． Body with grounding connection protection

8． Support hotline call, self stop if the other side hang up.

9． Built-in loud speaker, noise canceling microphone

10． Lighting will flash when there is a incoming call

11． AC 110v/220v powered or built-in rechargeable battery with solar powered panel optional

12． The design is super thin and smart. Embed style and hanging style can be chosen.

13． Time out function optional

14． Colours: RED + Stainless steel , If the qty over 100pcs can be To customer 

Machine Parts

Aluminum alloy die - cast body
PCB Board
Handset & hook
Telephone line

Applications:

As Public telephone for indoor or outdoor, elevator phone, Taxi or bus stands or station, Highway call box. Railway, metro, ATM machines side, Tunnel, Port, Dock, Mines, Generation facilities….
A good ideal telephone for use in wet or corrosive atmospheres