Get a list of Instrument objects. Instruments have a 1:1 mapping with Observations.

### Available end points:

- `/instruments/` - Will list all Instruments in the database
- `/instruments.json` - Will return all Instruments in json format
- `/instruments/<object_id>/` - Returns Instruments object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `instrumentType`

### How to use filters:

- `/instruments/?title__startwith!=Instrument.title: DETAILS NEEDED`
- `/instruments/?uuid=c7fa005e2095425392b18adbd7b40617`
- `/instruments.json?instrumentType=radiometer`

GET /api/v2/instruments/40240/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 40240,
    "uuid": "d5a36d4b87a54ca2a30bc33c6e3100ce",
    "title": "QUANT Environmental Instruments AQMesh",
    "abstract": "Low-cost instrument (make: Environmental Instruments, model AQMesh) measuring air quality as part of the QUANT Wider Participation study. Has sensors that measure: PM2.5, PM10, Pressure, NO2, PM1, Relative Humidity, O3, CO2, Temperature, CO, NO.\r\n\r\nSerial numbers :\r\n621245\r\n622245\r\n623245\r\n388245\r\n389245\r\n390245\r\n391245",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12592/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12595/?format=api"
    ],
    "instrumentType": "sampler",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196165/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/196166/?format=api"
    ]
}