Latest digital voice recorder Tenders | Government digital voice recorder Tenders

Central Government/Public Sector

CTN :45354650

18 Jun, 2026 10.69 Lacs

Anuppur - Madhya Pradesh

Tender For supply of conference chairman unit , conference delegate unit , conference controller unit , watt wall mount speaker , mixer amplifier , extension assembly cable , speaker cable , pvc conducting supply and laying saddle , connector and cabling , installation/testing/ training/ commissioning of conference system

CTN :45346428

15 Jun, 2026 NA

Madurai - Tamil Nadu

Tender For purchase of renewable energy practical equipments - equipments for renewable energy practices:, rc phase shift oscillator oscillator type: rc phase shift oscillator using transistor / op-amp configuration. input supply: 230 v / 50 hz ac with regulated internal dc supply. output frequency range: 100 hz 10 khz adjustable. output: sinusoidal waveform with adjustable amplitude up to 10 vpp. rc network: three-stage rc phase shift network with frequency control arrangement. cro test points: dedicated cro terminals at amplifier output, each rc stage, and final output for waveform and phase-shift observation. protection: over-voltage and short-circuit protection provided. indicators and controls: power on led indication with frequency and gain adjustment controls. accessories: patch cords, circuit diagram, strain guage characteristics kitac mains power supply: 230 v 10%, 50 hz metal foil strain gauge mounted on beam/cantilever. strain measurement under applied load. wheatstone bridge arrangement. signal conditioning and amplification circuit. instrumentation amplifiers with 3 digit display for strain / output voltage. zero and gain adjustment controls. provision for applying calibrated loads. table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords, load cell characteristics kit input supply: 230 v / 50 hz ac with regulated internal dc supply. sensor: strain gauge load cell with suitable mounting arrangement. load range: 0 10 kg. display: digital display for load/output indication. cro / test points: test points provided for observing bridge output, amplifier output, and signal conditioning stages. controls: zero adjustment and calibration controls provided. protection: overload and short-circuit protection provided. accessories: loading arrangement, connecting leads., measurement of tank level using rotometer input supply: 230 v / 50 hz ac with regulated internal dc supply. tank arrangement: transparent tank with 30 liters capacity with suitable supporting stand. rotameter range: 0 4000 l/hr calibrated rotameter. flow system: pump, control valves, and piping arrangement provided for continuous flow operation. measurement facility: provision for flow-based tank level measurement and observation. display / observation: calibrated level indication with flow monitoring arrangement. test points: output terminals provided for monitoring sensor/output signals. accessories: connecting tubes., measurement of tank level using displacer type level transmitter input supply: 230 v / 50 hz ac with regulated internal dc supply unit. measurement principle: buoyancy (archimedes principle) using displacer element. tank arrangement: transparent experimental tank with 30 liters capacity and suitable mounting stand. level range: suitable laboratory-scale level measurement (0 100% tank height). sensor system: displacer type level transmitter with continuous level output signal. display unit: digital indicator for level display in percentage / engineering units. output signals: standard analog output (4 20) ma / (0 10) v provided for monitoring. test points: provided for transmitter output, signal conditioning, and display unit verification. controls: zero and span calibration adjustment provided for setting level reference. protection: over-voltage and short-circuit protection for electronic modules. accessories: connecting cables, piping arrangement, loading medium (water), measurement of temperature using pt100 input supply: 230 v / 50 hz ac with regulated internal dc power supply unit. sensor: pt100 resistance temperature detector (rtd) probe with stainless steel sheath. measurement principle: resistance variation of platinum element with temperature. temperature range: 0 c to 150 c (or suitable laboratory range). display unit: digital temperature indicator with direct c display. accuracy: high accuracy with linearized rtd signal conditioning circuit. sign

CTN :45346446

11 Jun, 2026 NA

Tuticorin - Tamil Nadu

Tender For purchase of lab equipments for res dept - purchase of lab equipments for res dept, rc phase shift oscillator (iemcode:o001)specifications: oscillator type: rc phase shift oscillator using transistor / op-amp configuration. input supply: 230 v / 50 hz ac with regulated internal dc supply. output frequency range: 100 hz 10 khz adjustable. output: sinusoidal waveform with adjustable amplitude up to 10 vpp. rc network: three-stage rc phase shift network with frequency control arrangement. cro test points: dedicated cro terminals at amplifier output, each rc stage, and final output for waveform and phase-shift observation. protection: over-voltage and short-circuit protection provided. indicators and controls: power on led indication with frequency and gain adjustment controls. accessories: patch cords, circuit diagram., strain guage characteristi cs kit(iemcode:o002)specifications: ac mains power supply: 230 v 10%, 50 hz metal foil strain gauge mounted on beam/cantilever. strain measurement under applied load. wheatstone bridge arrangement. signal conditioning and amplification circuit. instrumentation amplifiers with 3 digit display for strain / output voltage. zero and gain adjustment controls. provision for applying calibrated loads. no rs.10,000 2 table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords, load cell characteristi cs kit(item code: o003)specifications:input supply: 230 v / 50 hz ac with regulated internal dc supply. sensor: strain gauge load cell with suitable mounting arrangement. load range: 0 10 kg. display: digital display for load/output indication. cro / test points: test points provided for observing bridge output, amplifier output, and signal conditioning stages. controls: zero adjustment and calibration controls provided. protection: overload and short-circuit protection provided. accessories: loading arrangement, connecting leads., measurement of tank level using rotometer(item code: o004)specifications: input supply: 230 v / 50 hz ac withregulated internal dc supply. tank arrangement: transparent tank with 30 liters capacity with suitable supporting stand. rotameter range: 0 4000 l/hr calibrated rotameter. flow system: pump, control valves, and piping arrangement provided for continuous flow operation measurement facility: provision for flow-based tank level measurement and observation. display / observation: calibrated level indication with flow monitoring arrangement. test points: output terminals provided for monitoring sensor/output signals. accessories: connecting tubes., measurement of tank level using displacer type level transmitter(item code: o005)specifications: input supply: 230 v / 50 hz acwith regulated internal dcsupply unit. measurement principle:buoyancy(archimedesprinciple) using displacerelement tank arrangement: transparent experimental tank with 30 liters capacity and suitable mounting stand. level range: suitable laboratory-scale level measurement (0 100% tank height). sensor system: displacer type level transmitter with continuous level output signal. display unit: digital indicator for level display in percentage / engineering units. output signals: standard analog output (4 20) ma / (0 10) v provided for monitoring. test points: provided for transmitter output, signal conditioning, and display unit verification. controls: zero and span calibration adjustment provided for setting level reference. protection: over-voltage and short-circuit protection for electronic modules. accessories: connecting cables, piping arrangement, loading medium (water), measurement oftemperature using pt100(item code: o006a)specifications: input supply: 230 v / 50 hz ac with regulated internal dc power supply unit. sensor: pt100 resistance temperature detector (rtd) probe with stainless steel sheath measurement principle: resistance variation of platinum element with temperature. temperature range: 0 c to

CTN :45327920

05 Jun, 2026 14.61 Lacs

Dadri - Uttar Pradesh

Tender For work-3- supply and installation of equipments for cctv control room in npp dadri - supply of 55" led tv wall mount with 15 meter hdmi cable, supply of high end work station with gpu for viewing cameras, 5kva ups with battery (min 4 hrs backup), vms with base licence setup including va/ai, airconditioning 2 ton for viewing centre, 16 port network switch with 2sfp, 6u network rack, pa system with speaker and amplifier, installation and commissioning gst will be paid extra

CTN :45334353

02 Jun, 2026 1.54 Lacs

Kolkata - West Bengal

Tender For construction of regional centre at new town, rajarhat, kolkata, w.b. (sh: repairing of existing audio amplifier and replacement of defective paging microphone in installed audio system).subwork/packages:repairing of existing audio amplifier etc.

CTN :45332862

20 Jun, 2026 30.00 Lacs

Kolkata - West Bengal

Tender For supply of chairman unit , delegate unit , digital control unit , extension cable 8 pin cat 6 cable , 30 w wall mount loudspeaker , 240 watt mixer amplifier with bluetooth and usb , digital signal processor , handheld wireless microphone. , dual lapel wireless microphone , cameras for tracking purpose with look at me features , speaker tracking system and 4 port splitter , 24 port manage switch or better as per the requirement , interactive display 98 octa core processor, , 42 43-inch led display , portable tv stand , 55 inch led display , podium gooseneck microphone , acrylic podium with color ccrh logo , tab of reputed brand , wireless presentation , laptop of reputed brand , electrical work and carpentry work , access point including cable work from main connection , all speaker cable -2 core , hydraulic cable cubby , installation 3 kva online ups , 24u fully loaded floor standing network rack , 3 years of warranty and 3 years of cmc should be provided

Central Government/Public Sector

CTN :45212220

19 Jun, 2026 NA

Delhi - Delhi

Tender For corrigendum : supply of supply, installation & testing of digital voice recorder (dvr) system (qty. 15)

State Government

CTN :45345599

17 Jun, 2026 1.23 Crore

Delhi - Delhi

Tender For supply of magnetic levitation system workstation , 2 dof helicopter workstation , rotary servo base unit , single output linear dc voltage controlled power amplifier , 2 channel data acquisition device daq , single inverted pendulum experiment module , ball and beam experiment module

State Government

CTN :45341965

09 Jun, 2026 2.92 Lacs

Chandigarh - Chandigarh

Tender For repair of sound system at lt 1 by replacing amplifier and speakers of lt, nehru hospital, pgimer, chandigarh

CTN :45346097

29 Jun, 2026 NA

Indore - Madhya Pradesh

Tender For supply of 20a ac/dc current probe with power adaptor , 100a ac/dc current probe with bnc output , 500a ac/dc current measurement system with amplifier

Digital Voice Recorder Tenders

By Cities

By States

By Agencies

By Ownerships

By Sectors

Central Government/Public Sector

Central Government/Public Sector

State Government

State Government