Features:
• Audible signal while measurement is in progress.
• Sky brightness displayed in visual magnitudes per square
arcsecond.
• Infrared blocking filter restricts measurement to visual bandpass.
• Temperature in both Celsius and Fahrenheit as well as model
number and serial number can be displayed with different button
press sequence.
• Precision readings at even the darkest sites.
• Power-saving features designed in for maximum battery life.
• Reverse battery protection.
Specifications:
• The Half Width Half Maximum (HWHM) of the angular sensitivity is
~10°. The Full Width Half Maximum (FWHM) is then ~20°. The
sensitivity to a point source ~19° off-axis is a factor of 10 lower than
on-axis. A point source ~20° and ~40° off-axis would register 3.0
and 5.0 magnitudes fainter, respectively. Annotated FOV spec.
• Comparison chart.
• Operates from 9V battery (included with courier shipments).
• Size 3.6 x 2.6 x 1.1 in. (92 x 67 x 28mm)
• Weight 0.31 lb (0.14 kg)
• Maximum light sampling time: 80 seconds.
• Specifications are subject to change without notice.
Details
• Audible signal while measurement is in progress.
• Sky brightness displayed in visual magnitudes per square
arcsecond.
• Infrared blocking filter restricts measurement to visual bandpass.
• Temperature in both Celsius and Fahrenheit as well as model
number and serial number can be displayed with different button
press sequence.
• Precision readings at even the darkest sites.
• Power-saving features designed in for maximum battery life.
• Reverse battery protection.
Specifications
• The Half Width Half Maximum (HWHM) of the angular sensitivity is
~10°. The Full Width Half Maximum (FWHM) is then ~20°. The
sensitivity to a point source ~19° off-axis is a factor of 10 lower than
on-axis. A point source ~20° and ~40° off-axis would register 3.0
and 5.0 magnitudes fainter, respectively. Annotated FOV spec.
• Comparison chart.
• Operates from 9V battery (included with courier shipments).
• Size 3.6 x 2.6 x 1.1 in. (92 x 67 x 28mm)
• Weight 0.31 lb (0.14 kg)
• Maximum light sampling time: 80 seconds.
• Specifications are subject to change without notice.