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CON-SPACE Intrinsically Safe Power Talk Box Communication System
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CON-SPACE Intrinsically Safe Power Talk Box Communication System

The Power Talk Box System is a portable intercom System designed to provide untethered, continuous two-way communication between, a Safety Attendant and the Confined Space Entrant.

Both the Attendant and all Entrants remain untethered, communicating at each end through a Power Talk Box (PTB). The Entrant PTB is a full-duplex device with a microphone that picks up voice from 20 ft. or more, depending on background noise. The powered speaker is very loud and designed to be heard by entrants in medium noise to distances up to 30 ft.

While the Attendant PTB has all the same qualities, its microphone does not remain open so that road noise etc. does not disturb Entrants, however, the Attendant can hear Entrants continuously. To speak with Entrants, the Attendant uses a Push To Talk (PTT) switch mounted on his/her PTB, which is also a Controller and contains the built-in, loud sounding alert, that can be used by Entrants if voice contact cannot be made with the Attendant.

The PTB System was configured for quick deployment, to allow workers total freedom plus the major benefits offered by having good hands free communication during every entry. While using this equipment, employees will be safer and will become more efficient every time they use it. Getting a tool, or having the attendant read the checklist would make the job faster and smoother. During inspections, the attendant can take notes outside the work area and the two can work better as a team. The PTB System can help workers who move from manhole to manhole every day, doing tasks that include installation, maintenance or inspection. It can also help Tower Crane operators, with crane to crane and crane to ground communication, or crews working on mobile Cherry Picker type operations. Having communication equipment could help make entries quicker and easier.

All equipment is waterproof, dustproof and extremely rugged for harsh use in rough environments. It also carries Intrinsic Safe Approvals in Canada, the USA and Europe, allowing it to be used in any explosive work area.


  • 1 x CSI-2105 Power Talk Box Controller
  • 1 x Power Talk Box
  • 1 x 75' Cable
  • 1 x CSI-1000 Carrying Case

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About is operated by Accurate Instruments (NZ) Ltd.
Accurate is one of the few 100% New Zealand owned and operated safety instrumentation companies in New Zealand today. This is in a market dominated by larger foreign owned companies, yet we continue to operate as a strong independent supplier to the NZ market.

We specialize in the supply, service and support of safety equipment and safety systems to protect workers and their workplaces with some of the world’s top quality technical safety instruments available, yet our pricing is highly competitive and represents value for money.

We are instrument consultants, and endeavour to find the right solution for our client by careful analysis of the application and intended result. We pride ourselves on our professionalism, ethical industry responsibility, specialist advice and service, quality of product, and of course our people.



 0800 500 380

192 Marua Road
Mt Wellington
Auckland 1051

4 Avenger Crescent
Christchurch 8042