Operating environments vary greatly in one consumer to a new and there's no such factor just like a `one size fits all` approach when selecting 'the best' radio. Since they may be pricey, two-way radios certainly are a very helpful and price-effective bit of package to get inside your communication armoury.
Before smashing the cheque book, you have to consider:
Licensed or unlicensed?
The choice between purchasing licensed or unlicensed radios depends largely on three factors: budget, work atmosphere, and safety. The license-free radios work on 8 common channels and share frequencies with every and every other radios. Really the only drawback is always that in some instances, anybody within range of you while using the PMR446 radio might overhear your conversation or obstruct your signal. Licensed radios not one of them licenses, systems, call charges without any contract. Those are the ideal entry-level cost-effective radios for everyone attempting to operate within line of sight as much as approx. 3 km range.
Needed channels
How much two-way radio channels depends upon the model. If all of your employees must speak to each other, another channell is effective. However, in case you operate a business just like a hotel, you will need multiple channels. Your home, housekeeping, and valet services are able to keep in contact in a single channel with security and hotel management in another channel.
You need to determine the quantity of different departments that can exchange data among themselves and between departments when deciding the number of channels your radios need.
Atmosphere
You have to think about the atmosphere r / c is needed to function in. If radio communication is required in potentially hazardous environments (i.e. oil refineries, chemical plants and flour mills) the location where the existence of inflammable gases or explosive dust generates a danger for just about any normal radio or electrical equipment you will want to think about ATEX radios. ATEX approved radio are created to prevent the potential of sparks being generated by high electric fields and intermittent electrical connectiions etc.
Once the radio will likely be submersed in water or operated in moist and dusty environments for almost any considerable time period you'll want to think about pickiing out an invisible by having an IP rating of 66 or higher. This helps to ensure the equipment remains secure and safe (to different levels) against dust and water invasion.
Conclusion
It is relatively simple enough to identify the kind of radio needed but harder to solve the precise manufacturer that's best suited in your demands without testing inside the operating atmosphere. Many radio companies offer free on-site demonstrations and testing and have radios that exist services.
This is a ideal chance to test before you purchase and it is certainly advised prior to making a considerable investment.