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Wind sensor (anemometer): used for automatic sign’s stop in case of wind more than 30 km/h speed
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GSM: In case of sign’s stop, GSM sends an error message by e-mail or sms showing sign’s position
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Self-regulating heating cable: used in extremely cold weather condition or in case of long period unused signs, in order to avoid ice on mechanisms and to guarantee a prompt sign’s use
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Lighting through LED 12/24V: In case of signs with 12/24V feeding
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