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721002910110
RGTB-525i is a practical solution for most installations
Burn time: +/- 40 hours with clean burning Weems & Plath lamp fuel (780)
Temperature Range: 14°F to 122°F (-10°C to 50°C)
the clock is a stunning mantle timepiece
Boltek EFM-100C RS485 Electric Field Monitor 4 Instrument Stations 721002910110Boltek EFM 100C RS485 Electric Field Monitor 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.