| 摘要 |
Novelty: an electronic bottom pump having a cellular phone installed thereon for calling in case of damaged pump or power failure. Constitution: electronic board, resistances, transistor, relays (2,1), buzzer, switch 2, cellular phone 3, pump 4 and two water sensors meant to actuate one from the two circuits in respect to the condition where the invention is found. Purpose: to remove water in case of flooding. |
