ASHWS

Transmission Type 30 x 25 mm. available 15000 lines per inch. Plate covered with mounted in plastic frame. Diffraction Grating School quality 25 x 30 mm. 13400 lines per inch mounted in plastic frame. Transmission type 38 x 50 mm. available 15,000 lines per inch. Replica on glass plate covered with another glass plate.

ALUMINIUM FOLDING 4 METER

ALUMINIUM FOLDING 5 METER

ALUMINIUM FOLDING 6 METER

Heavy gauge enamelled copper wire, approximate resistance 0.5 ohms wound on former 110 x 30 mm length x diameter. Secondary coil of fine enamelled copper wire, approximately resistance 100 ohms on former 110 x 82 mm length x diameter. Both coils fitted with 4 mm sockets. Iron core 120 x 15 mm length x diameter.

A spring arm , press knob, contact stud and a connecting strip with two 4 mm. terminals on plastic base of 100 x 60 mm. size.

7 INCH WITH ERECT IMAGE IN P.V.C BOX AND ALIMINIUM FOLDING STAND

12 INCH WITH ERECT IMAGE IN P.V.C BOX AND ALIMINIUM FOLDING STAND

11″X16″ 15 MM

Plated brass,each conductor on insulated stand

Stainless steel rod 1200 mm long, l0 mm diam. with one pair each of small & large, light & heavy masses, two steel knife edges in adjustable holders & a metal bracket support drilled for wall mounting.

DIGITAL DISTANCE METER MODEL : AR-851 (WITH LASER) RANGE TO 50FT (13.5)METER

CROSS STAFF 4″ ALUMINIUM WITH WOODEN BOX AND POLL PIPE

Mounted on wooden stand nicely polished with heavy metal base, finished in grey colour, having levelling screws. Overall height 120 cm. Boxwood scale 100 cm, graduated in mm., reading in both directions. The mercury reservoir held in clamp slides on metal rod chromium plated. A Jolly air bulb made form coming glass is supplied mounted on a wooden frame which can be slotted on the side.

MADE OD ACRYLIC IMPORTED PLASTIC SHEET 3MM

CAT. NO. 44. ALTIMER,COMPASS,DUAL TIME,DUAL ALAM,BAROMETER WITH GARPH THERMOMETER WEATHER METER WITH SIGH

Mains operated electronic timer reads 0 to 99.99 seconds. The display comprises of four 7 segment digits to read seconds and centiseconds. Two pairs of colour coded 4 mm sockets with two push buttons are controlled with a mode switch which enables either make or break pulse to be used to operate the timer. With re-set action.

Two glass tubes 220 mm long, one with closed top & the other open and connected by 1 metre pressure rubber tubing, are mounted on two brackets sliding on two vertical metal rods fixed rigidly on a stand. The stand has a graduated scale 0 to 100 cm. Supplied without mercury.

ISO 9001-2015

A spherical conductor on insulating stand with two hollow hemi-spheres, each with insulated handle,to show that electrostatic charge resides on outer surface.

ISO 9001-2015

ISO 9001-2015

ISO Certified 9001-2015

ISO Certified 9001-2015 7 inch

MIX AND SLOW MOTION WITH CANVAS COVER ISO 9001-2015

With charge indicating system 2 volts 45 AH on 20 Hrs rate in plastic container.

Moving coil for D.C. measurements, Any single range 0-1, 1.5, 3, 5, 10 Amps.