![...](https://files.ingeniumcanada.org/items/coll/310/052/1987-0827-001-aa-cs_thumb.jpeg)
Radiosonde
1987.0827.001
![...](https://files.ingeniumcanada.org/items/coll/310/055/1987-0827-002-aa-cs_thumb.jpeg)
Converter, frequency modulator
1987.0827.002
![...](https://files.ingeniumcanada.org/items/coll/308/010/1987-0827-003-aa-cs_thumb.jpeg)
Calculator, temperature
1987.0827.003
![...](https://files.ingeniumcanada.org/items/coll/308/012/1987-0827-004-aa-cs_thumb.jpeg)
Calculator, humidity
1987.0827.004
![...](https://files.ingeniumcanada.org/items/coll/308/015/1987-0827-005-aa-cs_thumb.jpeg)
Calculator, air pressure
1987.0827.005
![...](https://files.ingeniumcanada.org/items/coll/308/016/1987-0827-006-aa-cs_thumb.jpeg)
Rule
1987.0827.006
1987.0827.001
1987.0827.002
1987.0827.003
1987.0827.004
1987.0827.005
1987.0827.006