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25" Illuminated Crosshair Eyepiece – 12
The Astronomik UHC (Ultra High Contrast) filter allows the transmission of nearly 100% of the radiation from both O-III and H-beta lines
95% transmission at 496nm and 501nm (O-III)
making the customer's needs heard all the time
WATER PROOF
Retekess Two Way Tour Guide System For Factory Training Svbony 25" Illuminated Crosshair Eyepiece –Retekess Two Way Tour Guide System For Factory Training Retekess Two way communication device has 23 channels, you can use many main transmitters in one location. So if you have many groups, that will work. In addition, one main transmitter can work with as many as receivers in one group. All the people can talk in the group when they need to talk. Strong obstacle diffraction ability, first class penetration effect of cement walls and brick walls, it
