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wind direction and time as well as the highest gust of wind are stored in non-volatile memory
revised 2001
UPC Code: 721002003690
avoiding the risk of gas build up
Boltek EFM-100C RS485 Electric Field Mill Kit promo wind direction and time asBoltek EFM 100C RS485 Electric Field Mill Kit Measuring the static electric field generated by thunderclouds the Boltek EFM 100 not only detects nearby lightning but can detect the atmospheric conditions which precede lightning. Electric field data is displayed and graphed on your desktop computer using the included software. For complete electrical isolation from the field mill outside, the EFM 100 connects to your computer using a fiber optic cable.