Temporary structures are often limited in the allowable wind forces. Measures must be taken when the windspeed crosses the allowed limit. Monitoring the windspeed is essential to take the measures in time in order to guarantee the safety of the structure, the artists, the technicians and the audience. The PROTOS Wireless Windspeed Meter is small and easy to mount on any scaffolding pole. Battery, solar or permanently powered. To measure the windspeed on the structures and warn you when measures should be taken. Warnings can be provided via the local wireless network or via a GPRS module, as text message, to any mobile phone in the world. The PROTOS PL PLCS-WST-800M is built on the same technology as other PROTOS wireless transmitter modules. It can be monitored with the same handhelds or base stations or send their data via a GPRS module to any cellphone or email address. It features a high quality 3-cup rotor, pressed on a stainless steel shaft. Measuring over the range of 2.25 to 55m/sec.The Protos Wireless Windspeed meter can be powered from internal batteries, solar power or an external Power supply and comes standard with a scaffolding clamp.