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TCP/IP Voltmeter - version V10

TCP/IP voltmeter V10 enables to measure DC voltage, temperature and control a relay through the Internet. It includes a DC voltmeter, thermometer and relays. It has low power consumption and it is a perfect equipment for automation and remote measurement.
TCP voltmeter
TCP voltmeter

TCP voltmeter

TCP voltmeter

TCP voltmeter

TCP/IP Voltmeter V10 features :

  • full HTTP server on port 80
  • reading data via web browser, SNMP client, TCP client, XML file ( AJAX )
  • SNMP agent v2
  • TCP server on port 9760
  • static and dynamic IP address
  • galvanically isolated DC voltmeter
  • thermometer sensor DS18B20 (calibrated)
  • wide range of power supply voltage (5-35V)
  • Alu enclosure coming soon
  • software and tools for experiments
  • android mobile application available
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TCP Voltmeter V10 & pictures

View of the TCP voltmeter from different sides.
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TCP/IP Voltmeter V10 hardware

TCP/IP voltmeter includes A/D converter, which is connected through a galvanic isolator with a microprocessor. It also includes an input for an external thermometer sensor. Board also contains 1 relay.
      DC voltmeter includes a voltage divider that reduces the input voltage to the desired range for processing in the A/D converter. Voltmeter is galvanically isolated from the board. Input impedance is 1 MOhm. A/D converter is the type LTC 2492, which is 24-bit A/D converter. Thermometer uses a sensor DS18B20, which is calibrated during manufacturing. He has guaranteed accuracy of 0.5 C. Relay allows you to turn on/off external devices.

Technical parameters

  • Voltmeter measurig range : 0 - 50 V DC
  • Voltmeter resolution : 0.01 V
  • Voltmeter input impedance : 1 MOhm
  • Voltmeter speed measurement : 2 times/sec
  • Thermometer measurig range : -25 to 120 C
  • Thermometer resolution : 0.1 C
  • Thermometer speed measurement : every 5 seconds
  • Thermometer sensor DS18B20, length 1 meter


  • Board size : 78 x 67 mm
  • Board supply voltage : + 5V to + 35V DC
  • Board current consumption : 160 mA / 5 V
  • Relay max. switching voltage : 230 V, 3A DC
  • Relay max. switching current : 3 A
  • Relay max. switching power : 750 VA ( 90 W )
  • 2 digital inputs ( low = 0 V , high = 3.3 V )
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TCP/IP Voltmeter V10 schematic

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TCP Voltmeter V10 & screenshots

HTML pages are stored in FLASH memory. User can modify them or add your own sites. More information in the datasheet.
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Tools & applications

Android application for TCP voltmeter. You can use this app to connect to TCP voltmeter from your mobile phone.
Dowload from Google play :
Get it on Google Play

Datasheet for TCP voltmeter V10

Download datasheet [ Size : 960 kB ] : datasheet
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