• processor-controlled; LED-indication
• with sound , headphones socket
• dust & waterproof head( diam. 25cm ); IP65

• Depth detection:
  • Stop Cock sized cover (approx. 100mm x 100mm) at 30 cm depth (or 1 foot depth approx).
  • Fire Hydrant sized cover (approx. 40cm x 20cm) at 60cm depth (or 2 foot depth approx).
  • Manhole sized Sewer Cover at 1m (or 3 foot depth approx).