Typical Range is 50-70m in built-up areas.

The Zartek Wireless Intercom System is newly developed and four years of R&D in the making. It is fully approved by ICASA.
Communication is initiated from the gate station by pressing the bell button. All the handsets linked will ring and communication is established. Communication is simplex so only one person can speak at a time but the gate station’s microphone is always active so the visitor does not have to press any key to speak. The inside handset can enter into the conversation at any time by pressing a PTT button.
There is a  lock trigger button on the handset for opening a motorized gate or striker lock. This can trigger the front gate station at any time or during a call.
Multiple handsets can be added for the same house to have internal communication. There is a handset calling button which works on push-to-talk.
Additional (back) gate stations can be added on the system to ring the same handset/s.
Programming is done manually to link handset or handsets to a button.
There is a light sensor which illuminates the bell button at night.
 
DETAILED FEATURES:

Digital Radio Communication
Hands-free Use for Visitor & PTT for Resident
Gate Triggering (relay included)
Gate powered from supply (included) or gate motor 12v
Gatestation battery Back-up with 3 AAA batteries (not included)
Manual Programming (see manual for details)
Mount on standard gooseneck or against wall
Selectable audio, visual or vibration alert
Outdoor temperature reading on handset
Handset with rechargeable Li-ion battery
Low risk of lightning damage
Out-of-range and low battery level alert
Multiple Handsets (ZA-651 optional extra handset)
Additional Gatestations (ZA-652 optional extra gatestation)
Intercom function between handsets
1 Year limited warranty (see manual for details)
Fully approved by ICASA

Package includes:

Gate Station
Handset with desktop charger
Regulated 12VDC Power Supply
Special Tool
Manual
Relay board