Ultra-low power consumption design, no need to replace batteries during normal use Touch-type sensing, no mechanical moving parts Overall epoxy resin sealing, anti-corrosion, waterproof, moisture-proof Special grounding cable is oil-resistant, wear-resistant, acid-proof, anti-freeze, sun-proof, and anti-aging Explosion-proof touch ball, safe release of static electricity, no electric shock when human body touches it, Manufacturer: ZKLGS