Speleonics Michiephones

Michiephone Handsets

Note: The Speleonics Michiephones are sold out. I am looking into the costs of producing another batch and will post something here about that in a few months time.
- March 2003 -

For simple, reliable communications in Cave Rescue, Surveying, Exploration and General Underground Use

Michiephones are single wire telephones. A single wire is used to transmit voice and and the return path to complete the circuit is via the earth. They provide simple, reliable communications in cave rescue, surveying, exploration and general underground use. They are widely used by cave rescue squads in Australia, New Zealand, the UK and Europe. They are a particularly good complement to a through-the-rock radio communication system.
Click here for a brief description of how they are used to assist you in deciding if Michiephones will serve your requirement.

Some of their many advantages are:

Small size - measuring 110 x 58 x 30mm a unit will fit into your top pocket and weighs 250g including battery.
Low power requirement - lasts hundreds of hours on a single 9V battery.
Designed and built to be used in a cave. Reliable circuit housed in a rugged metal diecast box.
Single wire operation - significantly reduces the quantity of wire reels that must be carried into a cave.

The link below is to a picture of Jill chatting on a Michiephone. Click your browsers back button to return to here.
Jill chatting on a Michiephone (Image size: ~500x800, 288k)

The drawing here should show the Michiephones actual size in most browsers.
Scale drawing (Image size: ~200x400, 3.5k)

For further information see the contact information in the Introduction.

Enquiries about acting as an agent for sales in your country are welcome.