For immediate assistance, call Techkon USA at 978-777-1854 or email Info@TechkonUSA.com
The calibration chart can be used to calibrate devices including the RS400 and RS800.
All of our SpectroDens3 instruments ship with a standard 3mm aperture. Additional apertures for the SpectroDens3 are available in 1.5mm or 3mm sizes.
The battery door works with the following devices: SpectroDens 2 & 3 all models.