TEMPERATURE ALARM FOR WATER VESSEL FOR TROPICAL FISHES

摘要

PROBLEM TO BE SOLVED: To eliminate failure caused by that in the temperature control of water vessel when breeding tropical fishes. ;SOLUTION: A buzzer 2, switch 3 and battery 4 are housed in a case and this case is communicated with a glass pipe housing a bimetal 1. When the temperature of water vessel for tropical fishes is not kept higher than 22°C while utilizing the bimetal 1, an alarm buzzer is sounded.;COPYRIGHT: (C)1998,JPO