Latest autorefractometer Tenders | Government autorefractometer Tenders

CTN :45427779

18 Jun, 2026 2.46 Lacs

Thanjavur - Tamil Nadu

Tender For supply of eee lab items - furniture, 5hp/3.75kw/415v1500rpm three phase(3 )synchronous motor with starting / loading arrangement and with work bench voltage:415v ac/220v dc for field excitation make: benn rating: 5hp/ 3.75kw speed:1500rpm no of poles : 4 synchronous starter dc excitation field current :0.8a digital voltmeter ac(0-500v) moving iron type:01qty digital ammeter ac(0-20a) moving iron type :01qty digital ammeter dc(0-2a) moving coil type :01qty digital power factor meter 600v/10a :01qty 3pole mcb/dc mcb with 20a fuse carrier and supply indicators (three pin plug socket should also be provided) :03qty digital rpm indicator with proximity sensor: 01qty banana connectors for motor/starter/supply outputs :01qty control panel (hylem sheet(5*1.5feet) with ms panel) :01 work bench spec: size: 4feet*3feet*2 1/2 feet height leg teak wood with top 3/4" inch plywood 18mm plywood withone mica sheet for finishing front side cupboard with door open and closed type back side wiring box with door open and closed type, performance of ultrasonic and moisture sensors(5v dc/15ma(40khz/digital output) arduino uno: microcontroller-atmega328p on-board digital sensor components two push button switches and dour leds buck converter and relay for 5v and potentiometer-one each 2x16 liquid crystal oscillator(lcd) and mini bread-one each onboard digital sensor modules: ultrasonic sensor module(3cm-100cm) and soil moisture sensor -one each all sensor modules should be mounted on legend size pcb, speed control of ac motor using variable frequency drive(vfd) (0.5hp/415ac/5a(3 )) variable frequency driver (vfd) unit: input voltage:single phase, 230v ac +-10%, 50hz output voltage : three phase output frequency range: 0 to 60hz suitable for 0.75kw motor output current 4.2a vf pattern of spwm control 2pole mcb for on/off control of mains ac voltmeter, ammeter and speed indicator should be provided external stop/start and frequency control should be provided output terminals should be provided and must be brought out in front panel experimental board should be housed in a cabinet with suitable cover three phase induction motor motor type:squirrel cage |rating:0.5hp voltage rating :415v ac speed :1440rpm+-5% insulation : class b/f

CTN :45430824

18 Jun, 2026 NA

Ariyalur - Tamil Nadu

Tender For supply of lab equipment - basic engineering lab materials, digital balanceweight 500g, accuracy 0.01g, top pan. tare function,caliberation- automatic external display type: led, digital tds meterrange 0-9990 ppm, resolution 1ppm, digital lcd display, atc feature., digital ph meterph range o to 14, resolution 0.01 ph, digital display, joule calorimetercopper vessel, battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), thermometer (alcohol), stop clock, mortar with pestleporcelain/agate,gazed exterior, unglazed grinding surface.item weight 2290 gramsitem diameter 4 inches, water distillation unitoutput capacity: 2 4 liters per hourmaterial: stainless steel boiler and condenserheater: built-in electric heating elementpower supply: 220 240 v ac, 50 hzcooling: water-cooled condensersafety: automatic low water cut-off, ic regulated battery eliminatoric regulated, input: 230v ac; output: 0-12v dc in steps of 2v; capacity: 1a or 2a., galvanometermoving coil type, 30-0-30 scale, sensitivity 20 a/div, resistance approx. 100 ohms., voltmeterdc voltmeter; range 0 10 v, analog , ammeter dc (0 - 2 amp), cdecade resistance box3 or 4 dials, range 0.1 to 100 or 1k , constantan/manganin wire coils., rheostathigh-grade ceramic tube, oxidized resistance wire, 0.5a 5a, range 10 100 ., solar cell kitthe apparatus consist of variable dc power supply, led, solar cell and two multimeters (or an ammeter and a voltmeter). a variable dc power supply of 0-5v. light source is provided by led. the illumination intensity of the led can be controlled, wheatstone bridge kitseries arm: four decade dials in steps of thousands, hundreds, tens, & units of ohms. ratio arm: the ratio arm of the bridge is capable of selecting multiplying factor of 0.001, 0.01, 0.1, 1, 10, 100, 1000 for resistance measurements. two press keys are provided, one marked b is for battery & one marked g is for galvanometer one toggle switch is provided for internal battery a sensitive galvanometer is provided in the bridge., ohms law verification kitbattery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), standard resistance coil of 1, 2 ohm (2-set) wound on a wooden bobbin, meter bridgetype: 1 m length, with uniform wire (resistance wire)material: constantan or manganin (low temperature coefficient)scale: 0 100 cm, engraved or printedbase: wooden or metal, rigid, non-conductive supportjoints / terminals: brass or copper, fixed for connections2. galvanometertype: analog, moving coil or digital (for null detection)range: sensitive to detect micro-ampere currentsinternal resistance: high, typically ~100 or as specified5. cells / power supplytype: leclanch cells (1.5 v each) or dc power supplynumber: 2 4 cells in series (or supply ~3 6 v)

CTN :45435036

10 Jun, 2026 NA

Tiruchirappalli - Tamil Nadu

Tender For supply of equipment items > - parallelogram law apparatusparallelogram law of forces apparatus fitted with stand, travelling microscopebranded travelling microscope 0-200 mm horizontal and 0-150 mm vertical measurement (two separate experiment), helical spring apparatusstructure: a rigid support mounted on a heavy metal base, typically cast iron, to ensure stability during tests. springs: high-tensile steel spiral springs, typically (approx 25 mm) diameter, (100 mm) long. measurement scale: a vertical steel meter scale, usually with (1mm) graduations, for precise deflection measurement. loading mechanism: a, typically (50g), hook-attached weight hanger at the bottom. pointer: a fine pointer attached to the bottom of the spring moves along the scale. accessories: includes a set of slotted weights (e.g., (6times 50g) or similar sets) for incremental loading., boyle s law apparatusthe apparatus includes the quill tube, a retort stand, a clamp, and a mounted meter scale. quill tube specifications: length: approximately 50 cm. bore diameter: uniform bore, roughly 1 mm to 2 mm. construction: glass tube with one end sealed. trapped substance: a mercury pellet (or thread) of length 10 to 15 cm is introduced to enclose a column of air. mounting: attached to a half-meter or meter scale., torsion pendulumtorsional pendulum metallic disc, symmetrical masses and pendulum stand, steel wire, compound bar pendulumone meter long iron strip well painted with holes at a distance of every 5 cm and also with pair of brackets and a heavy base table top stand with stop clock, viscosity apparatusstokes apparatus with metre scale attached and long cylindrical glass jar, glass beads small size (1 box), screw gauge (0-15 mm), sonometer apparatussonometer with meter scale attached along with knife edge, tuning forks set 256, 384, 512 ranges, hammer, slotted weight -500 gm each to a total of 3 kg. brass wire (5 m), metre bridgetype: 1 m length, with uniform wire (resistance wire) material: constantan or manganin (low temperature coefficient) scale: 0 100 cm, engraved or printedbase: wooden or metal, rigid, non-conductive supportjoints / terminals: brass or copper, fixed for connections2. galvanometertype: analog, moving coil or digital (for null detection) range: sensitive to detect micro-ampere currentsinternal resistance: high, typically ~100 or as specified5. cells / power supplytype: leclanch cells (1.5 v each) or dc power supplynumber: 2 4 cells in series (or supply ~3 6 v), ohms law verification kitbattery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), standard resistance coil of 1, 2 ohm (2-set) wound on a wooden bobbin, joule calorimeter apparatuscopper vessel, battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), thermometer (alcohol), stop clock, potentiometer apparatusit features a 1-meter to 10-meter constantan/ manganin wire stretched on a wooden or sunmica baseboard with a millimeter scale. it includes 4mm brass terminals, a pencil jockey for contact, wire options (10 wires), and a typical resistance range of 10-20 ohms, ideal for high-precision voltage measurements., solar cell kitthe apparatus consist of variable dc power supply, led, solar cell and two multimeters (or an ammeter and a voltmeter). a variable dc power supply of 0-5v. light source is provided by led. the illumination intensity of the led can be controlled, deflection magnetometer apparatusdeflection magnetometer apparatus with compass box and two short bar magnets, ic regulated battery eliminatoric regulated, input: 230v ac; output: 0-12v dc in steps of 2v; capacity: 1a or 2a., galvanometermoving coil type, 30-0-30 scale, unbranded with bhel specification-sensitivity 0.143mm/v, ammeterdc (0 -2 amp), voltmeterdc voltmeter; range 0 10 v, analog, decade resistance boxresistance box 12 month warranty (dial type) - mangani

CTN :45401498

16 Jun, 2026 NA

Madurai - Tamil Nadu

Tender For purchase of equipments for physics and chemistry lab for first year department - digital balance: load capacity: minimum 500 g readability: 0.01 glinearity: 0.02gdisplay: lcd/ledtare function: required top pan typepower supply: 220 240 v ac, 50 hz", galvonometer moving coil type, 30-0-30 scale, unbranded with bhel specification-sensitivity 0.143mm/v, voltmeter dc voltmeter; range 0 10 v, analog, ammeter dc (0 - 2 amp), decade resistance box resistance box 12 month warranty (dial type) -manganin coil- 2 dials, potentiometer apparatus it features a 1-meter to 10-meter constantan/manganin wire stretched on a wooden or sunmica baseboard with a millimeter scale. it includes 4mm brass terminals, a pencil jockey for contact, wire options (10 wires), and a typical resistance range of 10-20 ohms, ideal for high-precision voltage measurements., deflection magnetometer apparatus deflection magnetometer apparatus with compass box and two short bar magnets, solar cell kit the apparatus consist of variable dc power supply, led, solar cell and two multimeters (or an ammeter and a voltmeter). a variable dc power supply of 0-5v. light source is provided by led. the illumination intensity of the led can be controlled

CTN :45386611

15 Jun, 2026 NA

Tuticorin - Tamil Nadu

Tender For purchase of lab equipments for basic eng dept - purchase of lab equipments for baisc eng dept (physics and chemistry), digital balance itemcode: a001 weight 500g, accuracy 0.01g, top pan. tare function, caliberation- automatic external display type: led., joule s calorimeter itemcode: a005specifications:copper vessel, battery eliminator 3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0 2a), voltmeter (0-5v), thermometer (alcohol), stop clock, ic regulated battery eliminator itemcode: a011specifications:ic regulated, input: 230v ac; output: 0-12v dc in steps of 2v; capacity: 1a or 2a., galvanometer itemcode: a012specifications:moving coil type, 30-0-30 scale, unbranded with bhel specification-sensitivitysensitivity, voltmeter itemcode: a013specifications:dc voltmeter; range 0 10 v, analog., ammeter itemcode: a014specifications:dc (0 - 2 amp), decade resistance box itemcode: a016specifications:resistance box 12 month warranty (dial type) -manganin coil- 2 dials, sonometer apparatus itemcode: a017specifications:sonometer with meter scale attached along with knife edge, tuning forks set 256, 384, 512 ranges, hammer, slotted weight - 500 gm each to a total of 3 kg. brass wire (5 m), travelling microscope itemcode: a018specifications:branded travelling microscope 0 200 mm horizontal and 0-150 mm vertical measurement, potentiometeritemcode: a019specifications:it features a 1-meter to 10-meter constantan/manganin wire stretched on a wooden or sunmica baseboard with a millimeter scale. it includes 4mm brass terminals, a pencil jockey for contact, wire options (10 wires), and a typical resistance range of 10-20 ohms, ideal for high-precision voltage measurements., rheostat itemcode: a021specifications:high-grade ceramic tube, oxidized resistance wire, 0.5a 5a, range 10 100 ., deflection magnetometer apparatusitemcode: a022specifications:deflection magnetometer apparatus with compass box and two short bar magnets, digital electronic balance /analytical balanceitemcode: a001/a007specifictions:load capacity: minimum,500 g readability: 0.01 g,linearity: 0.02g,display: lcd/led,tare function: required,top pan typepower supply: 220 240 v,ac, 50 hz, digital tds meter itemcode: a002specifictions:measuring range: 0 9990,ppm resolution: 1 ppm,display: lcdautomatic temperaturecompensation (atc): requiredwaterproof: minimum ip67 protectionpower source: battery, operated (button cell/aaa, digital ph meter benchtop model itemcode: a003specifications:ph type microprocessor/microcontrolle r ph range: 0 14resolution: 0.01 ph,accuracy: 0.05 ph or better combined ph electrode with temperature sensor two or three-point calibrationfacility temperature compensation type automatic display: lcdpower supply: 220 240 v ac, 50 hz warranty minimum 1 year, laboratory heating mantle (knitted glass yarn) itemcode: a004specifications:capacity: 500ml,temperature range: ambient to 350 c energy regulator/control knob:required power supply: 220-240 v ac,50 hz, mortar with pestle itemcode: a006specifications:material: porcelain size: 100 150 mm inner diameter exterior: glazed grinding surface: unglazed, hot plate itemcode: a008specifcations:top plate material: cast iron plate size: minimum 8 inchdiameter power rating: 2000 w temperature range: ambient o 200 c minimum thermostatic temperaturecontrol: required power supply: 220 240 v ac, 50hz., electric bunsen burner itemcode: a009specifications:electrically operated energy regulator/ control knoboperating temperature 800 c body: stainless steel power supply source: corded electric, supplied with a heavy-duty, heat-resistant,earth-grounded, 3-pin power cord (minimum length 1.2 meters). power consumption: between 350 and 500w power supply: 220 -240 v ac, 50 hz, water distillation unit itemcode: a010specifications:output capacity: 4 litres per hour (lph) ph value: 5.5 to 7.0conductivity (raw water distillation):3.0 4.0 s/cm or less glassware material:borosilicate 3.3 glass (pyrex/duran

CTN :45338050

27 Jul, 2026 NA

Kharagpur - West Bengal

Tender For supply of k v meter self illuminated flush type moving coil ac voltmeter with inbuilt rectifier with metal clamp and shock proof rubber gasket to range 0-170 volts to be graph 0-30kv with suitable calibration as 140 v showing 25 kv. size:- 96 x 96 mm accuracy + 1.5% to is 1248/1968 or latest [ warranty period: 30 months after the date of delivery ] ]

CTN :45292141

18 Jun, 2026 NA

Ranchi - Jharkhand

Tender For supply of amalgamator , apron , bone ronger 30 , bone ronger 45 , bone ronger 90 , burnishers , burr box , burrs , cassette pass box , cheek retractor , condensers , curvers , dapen dish , dental chair unit , dental compressor , dental examination mirror , dental extration forceps , dental instrument cabinet , dental suction machine , dental x-ray machine , dental x-ray processing box , dental x-ray viewer double screen , dental x-ray viewer single screen , endo box endo explorer , examiniation probe , excavators , explorers , film marker , glass slab , gp , hand pieces, 4 holes, high speed , high speed aspirator , instrument tray , k-files and h-files , light cure unit , periosteal elevator , protapers hand files , rct plugger set , sefty glasses , tissue forceps , twizeer , ultrasonic scaler , x-ray safe light , equipment for dental lab , alginate spatula , benck press , casting machine , crown flask with clamp , curing bath , dental anisthesia set , dental articulator , dental clamp , dental flask , dewaxing machine , fret saw , gic spatula , heating furnace , highspeed grinder , hot air syringe , hydroflask pressor pot , impression tray , lecron cover , micro motor set with 2 hand piece , mixing spatula , model drier , model trimmer , orthodontic pliers , pin dexing , plaster knife , polishing lathe , programmed procelain machine , putty lv with gun , refraction cord , rubber bowl , rubber mixing bowl , sand plaster , spirit lamp , suspension motor , vibrator , wax knife , wire cutter , work bench , centrifuge machine , mattress , bed side table , semi fowler bed , semi auto analyzer , minor ot light , refrigerator , aquaguard , ot light , micro scope , labour table , wheel chair , a-scan biometry machine with immersion made , colour vision , autorefractometer workstation , dcr dct surgery set , desmarres lid retractor , direct opthalmoscope with all accessories , entropion forceps , flureceian strips with applanation examination , gluacoma surgery set , indirect opthalmoscope with all accessories , intra-ocular lens implant surgery scalpels , intra-ocular lens implant surgery tool kit complete set , keratometer manual should have 15x eye piece , manual refraction trail box with all lens , micro surgery bipoler coagulator with cord , retinoscope with all accessories , schirmer strips with dry eye examination , type of slit lamp camera with system , weighing machine , stadiometer , bmi calculator or chart , blood pressure apparatus , glucometer with test strips and lancets , measuring tape , thermometer , torch flashlight , examination table with privacy screen , ecg machine , hemoglobin meter analyzer , urine sugar and albumin test kit , vision screening chart , specimen collection containers , automated perimetry , b-scan biometry machine , opthalmic microscope , oct machine , dental autoclave , generator , yag laser machine , dental x-ray machine with 360 degrees , modular table / meeting table / centre table (v2) (q2) , revolving chair (v5) (q2) , steel almirah / cabinets (v4) (q2)

CTN :45136842

16 Jun, 2026 NA

Bokaro - Jharkhand

Tender For supply of set of moving coil meters for wag-9 loco. comprising of 03 items in 08 nos. consists of:-(01) te/be meter bogie 1-2 as per clw,s spec.no.-clw/es/3/0071 (alt.-0),qty.= 04 nos., (02) catenary voltmeter as per clw's spec. no.-clw/es/3/0070(alt.-0),qty.= 02 nos., (03) battery voltmeter as per clw's spec. no.-clw/es/3/0073(alt.-0),qty.= 02 nos. [ warranty period: 30 months after the date of delivery ]

CTN :45199569

08 Jun, 2026 NA

Multi City - Multi State

Tender For supply of spares for ht & lt system, flood, drainage and dewatering sump", - closing coil 110vdc (for 11kv hwx vcb), tripping coil 110v dc (for 11 kv hwx vcb), agni motors bangalore-, 91type:sg301s1 v: 220ac/dc w:150 a:1.6 rpm: 100 i.cl: f duty: s2-5 min, vaccum interrupter (vg2, for 11kv hwx vcb), epoxy body (for 11kv hwx vcb), 11kv hwx mechanism. with (110v dc coil & 230 v motor), 11kv gang operated (go) switch, 11kv 120 mm². straight through jointing kit., 11kv 120 mm² termination kit, 11kv 240 mm². straight through jointing kit., 11kv 240 mm². termination kit., hdz-70-401, she 48.131.370-05 s2:8 5, ac230-240v 50-60hz 380 w, 5000r/min 6.0 a,, closing coil (110v dc, hvx-o, 33kv vcb), tripping coil (110v dc, hvx-0, 33kv vcb), service & test position limit switchs, (hvx-0, 33kv vcb), camp, disc complete (hvx-0, 33kv vcb), spring charging drum assembly ((hvx-0, 33kv vcb), rack-in & rack-out screws (hvx-0,33 kv vcb), 33kv gang operated (go) switch, 33kv 240 sq mm. straight through jointing kit., 33kv 240 mm². termination kit., single phase surge arrest, 9kv, 10kv, float switch (level sensor) with cable, mounting screw and termanal box 16(8) a 250 v, t-80, pressure gauege 0-16 kg/cm³ en-837-1, power contactor mo 250, 250a, 3p, 240v ac coil, aux 2no+2nc contacts, mccb, with magnetic release mccb, with magnetic release dsine dn3-630m 630a, 3p 50ka, 415vc,, power contractor mnx250 250a, 3p, 240vac coil, aux 2no+2nc contacts, power contractor with 240vac coil mnx650 650a, 3p, 240vac coil, aux 2no+2nc contacts., power contractor with 240vac coil mnx300 300a, 3p, 240vac aux 2no+2nc contacts, power contractor with 240vac coil, mo110, 110a, 3p, power contractor with 240vac coil, aux 2no+2nc contacts, rto-4, 72-110a bimetal overload relay, direct mounting (class 10), 1no+1nc auxiliary contacts with build in spp (single phasing protection), bimetal overload relay mn12 135-255a bimetal overload relay, direct mounting (class 10), 1no+1nc auxiliary contacts with build in spp (single phasing protection), bimetal overload relay mn12 180-300a bimetal overload relay, direct mounting (class 10), 1no+1nc auxiliary contacts with build in spp(single phasing protection), 6a control fuse link 415v ac, type: pq8n ch2j 1myn563613-ead tripping relay (86) flush mounting, case size 1/2, contacts 4no+3nc hr with hr flag aux volt 220 v dc, tripping coil, mo1 220-250v dc/ac, eq96 moving iron ammeter: range: 0-500a 500/1a, 250/1a, 50hz., thermostat bater cord 20-17 15a, 250v, 50hz., relay cr-m220vdc 4 1svr405613r9000, panel door handle 11kv, station auxilliary board dyear), mccb operating handle ohg45h9k handle, shunt open. release, 220/240v e1/6-t8, led panel light om-x, 3/5w/230v, omega, omo 10 33kj o resistor 33k/10w, 5%-with bakelite, power pack with battery backup input: 230vac, output: 220v dc, 0.5a, fuse 3a, slow blow for power pack, supply:230vac, 24vdc,, electronic magnetic flow meter line size: 200nb output:4-20ma, 2-7000lpm, max.w. p: 16kg/cm³, alarm range: 0-

Central Government/Public Sector

CTN :45049432

07 May, 2026 NA

Hosur - Tamil Nadu

Tender For supply of high rate discharge battery cell tester (i) range = 2.5 - 0 - 2.5, volts (ii) accuracy + 2.5% of f.s.d, (iii) permanent magnet moving coil type of dc volt meter with center zero scale of 60 divisions and external zero adjuster (iv) sensitivity 1000 ohms per volt. [ warranty period: 30 months after the date of delivery ]

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