SPECTROMETERS

TM-107/1
125mm circle scale with vernier reading 1Minute ( Brass scales )
TM-107/2
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/3
------------------------------- do ------------------- 30Sec. ( Brass scales )
TM-107/4
------------------------------- do ------------------------------ ( S.S. scale )

TM-107/5
150mm circle scale with vernier reading 1Minute ( Brass scales )
TM-107/6
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/7
------------------------------- do ------------------- 30Sec. ( Brass scales )
TM-107/8
------------------------------- do ------------------------------ ( S.S. scale )

TM-107/9
175mm circle scale with vernier reading 1Minute ( Brass scales )
TM-107/10
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/11
------------------------------- do ------------------- 30Sec. ( Brass scales )
TM-107/12
------------------------------- do ------------------------------ ( S.S. scale )

TM-107/13
225mm circle scale with vernier reading 1Minute ( Brass scales )
TM-107/14
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/15
------------------------------- do ------------------- 30Sec. ( Brass scales )
TM-107/16
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/17
------------------------------- do ------------------- 20Sec. ( Brass scales )
TM-107/18
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/19
------------------------------- do ------------------- 10Sec.  ( Brass scales )
TM-107/20
------------------------------- do ------------------------------ ( S.S. scale )

TM-107/21
250mm circle scale with vernier reading 1Minute (Brass scale)
TM-107/22
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/23
------------------------------- do ------------------- 30Sec. ( Brass scales )
TM-107/24
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/25
------------------------------- do ------------------- 20Sec. ( Brass scales )
TM-107/26
------------------------------- do ------------------------------ ( S.S. scale )
TM-107/27
------------------------------- do ------------------- 10Sec. ( Brass scales )
TM-107/28
------------------------------- do ------------------------------ ( S.S. scale )

TM-107/29 Research Spectrometer

250mm circle scale with fine Round Slit 0-100 scale micrometer ,
Eyepiece can also be used Ultrasonic Experiment.
Vernier Reading 10Sec.

TM-107/30 Research Spectrometer

As like TM-107/29
Vernier Reading 20Sec.

TM-107/31 Deluxe Model Spectrometers 

150mm Circle scale, Vernier reading 1Minute, Special Vertical
Screw and Lock arrangemet provided in Telescope and
Calorimeter tube for adjustments.