| temperature alarm This design allows a simultaneous check of a maxi- mum of four temperatures. The individual detectors are connected to the...
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| hydro-alarm It is well known that plant growers with a large "collection" have to work very hard in order to prois- and causes pin 13 duce s...
| 11-34 — elektor november 1980 fridge alarm "freeze" energy Most modern fridges are made up of thick layers of insulating material to reduc...
| 7-28 elektor july/august 1980 37 1 universal warning alarm 3 ... 15 V 5 ... 20 mA v!rs. 0 61 ip Mc T R511 pH i1 used to pulse a second oscil...