AAG CloudWatcher Cloud Detector


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AAG CloudWatcher is a high precision, low cost system for monitoring the sky condition. The AAG CloudWatcher (AAG CW) is available with either a 3m, 5m, 7m, or 10m cable and an optional Humidity Sensor (HS)

Note that we keep the CloudWatcher with Humidity Sensor (AAG CW+HS) with 5m or 10m cables in stock. All other options can be placed on back order. Contact sales@siderealtrading.com.au for availability.

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AAG CloudWatcher is a high precision system for monitoring the sky condition featuring high quality design and unique features at an affordable price.

Its intuitive graphic software allows an immediate visual reading of information. It lets the user set the measuring parameters, achieving a powerful and very accurate cloud detection. All alerts (cloudy, rain, etc) can be programmed to play sound files; that way, and using a couple of simple and inexpensive “walkie talkies” with “vox” function, the alarm can be heard away from the observatory, eliminating the need for a second computer. In addition there are several free programs for mobile devices.

The AAG CloudWatcher comprises:

A box with a special exterior finish that includes 5 sensors that are shown in the program through their corresponding graphs. They allow a thorough and easily understandable measurement of atmospheric conditions:

  1. Clouds sensor: Through an infrared sensor of the AAG CloudWatcher measures the temperature of the sky, and an electronic thermometer measures the internal temperature. Both data are then related by a powerful formula used to determine the existence of clouds. The measuring result is easily read on the graffic “Cloud”.
  2. Rain sensor: CloudWatcher uses a variable capacitor to determine the existence of rain. In addition, the capacitor incorporates an internal resistance for heating the element, drying it, which allows a constant reliable reading.
  3. Light sensor: To distinguish between day and night. It can even detect the Moon.
  4. Temperature sensor:
  5. Relative Humidity Sensor (HS): (Optional)


Additional information

Weight 0.5 kg
Cable Length

AAG CW 3m, AAG CW 5m, AAG CW 7m, AAG CW 10m, AAG CW + HS 3m, AAG CW + HS 5m, AAG CW + HS 7m, AAG CW + HS 10m


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