The Rugged Performance Standard is a set of nine benchmarks designed to measure a phones complete preparedness for extreme environments. Phones are rated on their rugged mechanics, resistance to external elements and ability to perform in the worst of conditions. Redefining “rugged,” the RPS establishes the new industry standard by which all industrial cell phones should be judged. The nine dimensions of the RPS are:
1. Dust and micro particle proof
2. Operational under extreme thermal conditions
3. Water/liquid proof
4. Durable Keyboard Mechanics/extra wide buttons
5. Impact (drop) protection
6. Extra-loud speakers for use in noisy environments
7. Resistant to shocks and vibration
8. Extra-long Battery life
9. 3 year Unconditional Guarantee
The degrees of protection are most commonly expressed as "IP" followed by two
numbers, e.g. IP57, where the numbers define the degree of protection.
IP First number - Protection against solid objects
0 No special protection
1 Protected against solid objects up to 50mm, e.g. accidental touch by hands
2 Protected against solid objects up to 12mm, e.g. fingers
3 Protected against solid objects over 2.5mm (tools and wires)
4 Protected against solid objects over 1mm (tools, wire, and small wires)
5 Protected against dust limited ingress (no harmful deposit)
6 Totally protected against dust
IP Second number - Protection against liquids
0 No protection
1 Protection against dripping water or condensation
2 Protection against water spray 15 degree from vertical
3 Protection against water spray 60 degree from vertical
4 Protection against water spray from all directions
5 Protection against low pressure jets of water
6 Protected against low pressure water jets and heavy seas
7 Protection against the effects of immersion (6 inches to 3.3 feet)
8 Protected against immersion under pressure