The Tv2 Master Thermometer is a Data Logger with Easy-Touch Screen

  1. Stand-alone - No computers needed.
  2. Easy touch display - Just touch a temperature to see a chart of the logged data.
  3. Tracks temperature & humidity or temperature only
  4. Logs and charts over 80,000 temperature readings from each sensor.
ThermaViewer monitoring four fridges and freezers 

The TV2 Master Thermometer is a Paperless Chart Recorder

  1. The electronic chart shows months and even years of data. 
  2. The dynamic chart that can be zoomed into and out of to see trends.
  3. A trace-mode highlights individual temperatures, showing when they were taken.
Temperature history chart for refrigerator

The TV2 Master Thermometer is a Temperature Monitor

  1. Four Remote sensors for;  refrigerators, freezers, rooms, incubators, display cases, etc...
  2. Maximum and minimum temperatures are displayed next to the current temperature.
  3. Instant access to current and past temperatures - just touch the screen to see more data.

ThermaViewer with PC and 4 fridges 



The TV2 Master Thermometer is an AlarmLab tech in front of freezer

  1. Each sensor has a low-battery as well as a high and a low temperature alarm.
  2. All alarms are highlighted on the paperless chart and logged.
  3. Phone call, email or instant message alerts can be sent.
Real-time temperature of four fridges

Stand up refrigeratorThe only instrument that:  Alarms, Monitors, Logs and Charts Temperature

Having one instrument that does all of this begs the question: "How hard is this thing to install and use?" 

Installation in 4 simple steps

  1. 1. Put a battery into each wireless sensor.
  2. 2. Position the  sensors.
  3. 3. Plug in the TV2 to the wall or a PC.
  4. 4. Review the date & time and set the alarms.

    1.             That is it.  You are done.

Monitor four Refrigerators or Freezers Simultaneously

The TV2 Master Thermometer receives and displays data from four sensors. Whether the sensors are sending temperatures from refrigerators, freezers, incubators, or rooms the current condition each sensor sees is displayed on the 'Current Status' screen and on the individual charts.  The maximum and minimum temperature is also displayed along with the battery level of each senor if the senor is wirelessly transmitting to the monitor.  The maximum and minimum temperature can be reset or 'zeroed out' by touching the display so that it begins again.  This is useful if the user needs to routinely record the maximum and minimum temperature.

The display also reflects the safety condition of each refrigerator or freezer. Sensor #1 with unsafe temperature The current temperature along with the maximum and minimum temperature appear in green as long as the temperature is within the safe range.  However, if the temperature moves above the high alarm point it immediately turns red.  Once the temperature moves back into the safe zone it again turns green, except for the maximum temperature which stays red until it is reset.  Because the color of the temperature reflects the conditions of the refrigerator It only takes a quick glance at the display to see if the temperature is safe or not.

Since a delay can be set for the actual high and low temperature alarms it is possible for a temperature to appear red, indicating it is outside the safe zone, without an alarm being triggered.  So a temperature that gets too warm and then cools off before the delay time elapses would show as red and then green, but no alarm would sound.

The sensor battery indication on the display will turn red if the battery voltage drops below 20% to alert the user to the need to replace it.

TV2 w computer & four 

Get the Full Picture


Phone call, email or text alert Ringing alarm

The TV2 Master Thermometer has an external normally open (N/O), dry contact relay, to trigger a phone call when an alarm occurs.  The optional Auto Dialer will call four or more phone numbers and leave a message to alert you when an alarm occurs.  The external relay connection can also be wired into a building alarm system or used to trigger an powered external alarm.ringing cell phone

The Master Thermometer can also send an email or text alert when an alarm occurs if the TV2 Master Thermometer is plugged into a computer and you are using our PC interface software, TView, with the email option.

 

Downloads to a PC with the free TView software

Temperature chart
Temperature chart as it appears on your computer (click to enlarge)

The TView software is a powerful part of the TV2 Master Thermometer.  It runs on your PC and can be configured to automatically copy the stored temperatures to your computer, in addition to downloading data on-demand.  This ensures that you will always have a backup of your temperature history.  TV2 plugged into a PC with the USB cableNurse at desk

It can also be used to display current temperatures on your PC from multiple TV2s.  So if you are using five monitors to keep tabs on twenty different refrigerators you could have a mini-chart displayed for each one of them on your PC.  This mini chart shows the last 100 saved temperature readings along with the current temperature.  And should an alarm occur, the temperature immediately turns red.

Our optional Email software will send an text or email message when an alarm occurs as long as the TV2 Master Thermometer is attached to a USB port on your PC or your LAN.  The USB power/interface cable can be plugged into any USB port on your PC.  Once the connection between your PC and the TV2 has been established an automatic download can be started so that every few seconds the data stored in the TV2 will be copied onto your PC.  This automatic backup can be accessed at any time to view the temperature history or print out charts for audits.

Your Secret Weapon for Complete Protection

Nurse with small girl

Whether you are protecting vaccines your patients depend on, laboratory experiments in process, priceless art treasures, or airplane wings stored at a constant temperature and humidity the TV2 Master Thermometer ensures all is well. 

If you are storing tissue samples or human embryos in a -80 freezer you can sleep easy at night knowing that the TV2 Master Thermometer is on the job.  If the temperature in a refrigerator or freezer gets too high or low it will notify you either with a phone call, email or text so you can move the product to a safe location.

The TV2 Master Thermometer keeps a log of all the temperatures so you can verify that your refrigerators and freezers have maintained a safe temperature.  And printing out a chart for the auditors or inspectors is simple.  The TV2 Master Thermometers stores over 1.5 years of temperature history for each of the cold storage units being monitored.  All of that stored history can be copied over to your PC with the free TView software.

Alarms

The TV2 Master Thermometer, has a number of alarms which have to do with the TV2 itself, and additional alarms for the sensors or the conditions being monitored by the sensors.  All alarms are indicated visually on the TV2 with a message, a blinking screen and in some cases will cause an area of the screen to turn red.  Some alarms are logged in the TV2 non-volatile memory and in files stored on your PC.  Additionally if the TV2 is plugged into a USB port on a PC at the time an alarm occurs it will be indicated on the PC in real time. 

All temperature and humidity alarms cause the external normally-open (N/O) relay to close.  This can be used to trigger an auto dialer so that phone calls are made to alert the staff that an unsafe condition has occurred.  Alarms can also initiate a Text or Email message.

Sensor condition alarms

  • High temperature alarm - buzzer, flashing message, closes relay, logged to memory
  • Low temperature alarm -buzzer, flashing message, closes relay, logged in memory
  • High humidity alarm -buzzer, flashing message, closes relay, logged in memory
  • Low humidity alarm -buzzer, flashing message, closes relay, logged in memory
  • Low sensor battery - battery indicator flashes red and icon show a low percentage reading
  • Temperature outside high or low set points - displayed temperature reading turns red, max or min conditions turns red
  • Humidity outside high or low set points - displayed humidity reading turns red

Visual alarm notice on ThermaViewer 

TV2 alarms

  • Power out - intermittent buzzer, flashing message, closes relay, screen sleeps after 20 seconds
  • Low battery - flashing message, the battery icons shows only a partial charge

How safe is your data?

Your temperature data is stored in non-volatile memory so even if you turn the Master Thermometer off and come back 10 years later all of your data will still be there. 

During power outages the internal batteries (3 AA) will continue to operate the TV2 for up to 40 hours.  And by operate we mean everything continues to work as if it was not operating on batteries:

  1. Data logging continues
  2. Alarms will sound, show on the display and be recorded
  3. The relay will close if an alarm occurs
  4. Phone calls and/or emails will be made or sent.
  5. Data can be copied to your computer.

Where is the TV2 Master Thermometer Used?

The TV2 Master Thermometer can be used anywhere temperature or humidity is a critical condition. 

For example they are used in:Master Themometer

  1. Pediatricians offices
  2. Public health clinics
  3. Research laboratories
  4. Testing laboratories
  5. Hospital operating rooms
  6. Museums
  7. Art Galleries
  8. Hospital nursing stations
  9. Pharmaceutical companies
  10. Manufacturing plants
  11. School kitchens
  12. Warehouses
  13. NASA facilities
  14. Historical Societies
  15. FDA laboratories
  16. Some of our customers

Each TV2 Master Thermometer monitors four different areas.Current Status area for one sensor

Since the TV2 Master Thermometer can track four different temperatures and humidity readings simultaneously you only need one display for four sensors.  This lowers the cost of monitoring multiple areas and means that you only have to look at one display to see what the current conditions are each area.  The picture at the right is one fourth of the current status display showing the current conditions for one of the sensors and the maximum and minimum temperature recorded.  The current battery charge for the sensor is also displayed. 

TV2 chart displayIn addition to the current status display you can also view the historical conditions for each area.  The TV2 Master Thermometer has an 'Easy Touch' display  for simple operation.  To look at detailed information for one of the sensors you simply touch that temperature. 

With one touch on the display a temperature chart immediately opens up so you can see what happened last night, last week, last month or even last year.  To see additional temperature history just touch the display again and scroll bars will appear on the chart.  The chart can be scrolled to the left or right to show earlier data.  It can also be zoomed into or out of to show much more historical information.  The chart is not only paperless it is never ending.  Once all of the non-volatile memory is filled with data the newer data will roll over oldest data, so you will always have the last 80,000 measurements stored for each sensor. 

Being able to see the temperature history makes it easy to spot trends.  This is particularly useful for troubleshooting issues with refrigerators, freezers or areas in a warehouse or building.


Temperature Date is Encrypted

Once the temperature and/or humidity data is collected from the sensors it is stored in the non-volatile memory of the TV2 Master Thermometer. It is impossible for the user to change the data once this happens.  It can only be viewed on the monitor, not changed.

It can be downloaded with the TView software so that it can be seen on a PC and even saved as a file on aFile verified icon PC but as it is saved it is encrypted with a 256 bit encryption algorithm. And once this happens it can only be viewed and/or printed out as a chart with the TView software.  If a saved chart is opened with the TView software a small 'padlock' icon is displayed indicated that the file is encrypted.  Additionally another icon indicated whether the file has been verified or not.  Verification indicates that a username and password has been entered which exactly matches the username and password that was used to download the data from the Master Thermometer.

Likewise if a chart is printed out from TView a 'signature verified' or 'signature unverified' text box will appear at the top of the printed chart.  This procedure ensures that 21 CFR 11 is complied with. 

                                      TView chart on compuer scree

The data can also be exported in unencrypted form to Excel where it can be viewed and manipulated if the user wants to analyze it.  In this case the data is not encrypted and no padlock or verification indication is shown.  The padlock and verification pen only appears on printouts or on a computer screen if the data integrity has been maintained.  This is comply with various regulations, such as 21 CFR 11.


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Designed and Manufactured in the USA

2009 Two Dimensional Instruments, LLC
(modified: )