More about Alarm (134)

1-07-1981 | R. Rastetter auto theft alarm Readers who are in the habit of parking their cars close to lampposts at night may presume that the vehicle is...

1-07-1981 | temperature alarm This design allows a simultaneous check of a maxi- mum of four temperatures. The individual detectors are connected to the...

1-07-1981 | 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...

1-05-1981 |

1-11-1980 | 11-34 — elektor november 1980 fridge alarm "freeze" energy Most modern fridges are made up of thick layers of insulating material to reduc...

1-07-1980 | 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...

1-07-1979 | With the overcrowding that is a common feature of most car parks nowadays, the chances of coming back to one` s car and finding a dent in t...

1-10-1978 | The Central Alarm System (CAS) will relay an alarm indication from a number of remote stations to a central location along a common bus s...

1-07-1978 | For anybody who wants the most sophisticated type of burglar alarm: what about Radar?! Philips/Mullard supply a Gunn oscillator module, type...

1-07-1978 | Various designs for liquid level indicators using discrete components have previously been published in Elektor. However, this design uses...