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SBIG Boltwood Portable Cloud Sensor

375.00Buy!
$

Adorama.com

Delivery: in USA

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A battery powered cloud sensor, perfect for those expeditions to dark-sky sites and star parties!The Portable Cloud Sensor is designed to alert you when the cloud conditions change. It consists of a s more→ensor head and a control box, connected by a cable. The sensor head is placed outside, pointing up at an unobstructed sky. The control box can be conveniently located inside a tent or building, as needed. The control box includes batteries that will power the unit for over 100 hours, plus an alarm beeper, a headphone jack for "silent" alarms, and simple user controls.The Portable Cloud Sensor measures the amount of cloud cover by comparing the temperature of the sky to the ambient ground level

SBIG Boltwood Cloud Sensor II with 150' Cable BOLTWOOD-CS-II-150

1,995.00Buy!
$

Adorama.com

Delivery: in USA

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You can rely on the Boltwood Cloud Sensor II for precise and continuous monitoring of sky conditions. This high-tech device measures cloud cover by comparing the sky temperature to the ambient ground more→level temperature, using the 8 to 14 micron infrared band to determine the sky temperature. A large temperature difference indicates clear skies, while a small difference suggests dense, low-level clouds. This innovative sensor is equipped with a moisture detector for identifying rain and snow. To avoid false alarms due to frost or dew, the sensor is kept slightly above ambient temperature by a heater. In the event of precipitation, the sensor is automatically heated to 70 degrees Celsius,