Temperature, Humidity, Pressure, etc...

  • Text, email or phone call alertFreezer
  • Easy-Touch Screen
  • Free secure software
  • 72 hour battery backup
  • Automatic data logging
  • Visible data history chart
  • QuickCheck™ display
  • Wired Ethernet connection
  • 21 CFR 11, CDC, FDA and JCAHO compliant
Fridge-Freezer alarm


QuickCheck™ Display

  1. Just touch any temperature, humidity or pressure reading to see its history.
  2. 'Easy-Touch, password protected menu system.
  3. QuickCheck™ display - Any red number is an alert.
ThermaViewer monitoring four fridges and freezers Send Me Information

Logs & Charts all Data

  1. View or print out a complete data log at any time.
  2. Use the trace-mode to scroll through the entire history.
  3. Automatically copy the data history to any PC or server.
Temperature history chart for refrigerator
I would like to have additional information.

Monitor Multiple Appliances or Areas

  1. Four remote sensors for;  refrigerators, freezers, clean rooms, incubators, warehouses, ovens, etc...
  2. Monitor refrigerators, freezers, -80 freezers, cryogenic freezers, ovens, etc...
  3. Wired or wireless sensors for temperature, humidity or pressure

ThermaViewer with PC and 4 fridges

Please send me a quote

Receive a text/email or phone call if an alarm occurs

  1. Customized text, email and phone alerts.
  2. A power out alarm warns you if a power failure occurs.
  3. Audio visual alerts on all alarm conditions in addition to text, email or phone calls.
Real-time temperature of four fridges
Please send me a quote.

Installing the TV2 in 10 minutes

  1. 1. Position the  sensors.
  2. 2. Power the monitor - 120vac
  3. 3. Set the date & time
  4. 4. Link the sensors if you are using wireless sensors
  5. 5. Set the alarms points
    1. That is it.  You are done.

Link to Installation Video

Monitor four areas or appliances with one TV2

The TV2 Alarm displays four temperature, humidity or pressure readings along with their maximum and minimum conditions.  The maximum and minimum readings can be Sensor #1 with unsafe temperaturereset to begin again, at any time, by touching the screen.

The QuickCheck™ display always indicates the safety status of each sensor.  For example, the current temperature along with the maximum and minimum points appear in green as long as the temperature is within the safe range.  However, if the temperature falls outside your safe zone it immediately turns red Once the temperature moves back into the safe zone it again turns green.  Because the color reflects the safety of the room or appliance a quick glance at the display is all you need to see if everything is OK or not.  This QuickCheck™ LCD means that anyone, at any time, can verify that all is well with a single glance at the display.

Text, email or phone-call alert. Ringing alarm

The TV2 alarm/logger has an external, normally open (N/O), dry contact relay, to trigger a phone call, external alarm or other devices any time an alarm occurs.  The optional Auto-Dialer calls several phone numbers to deliver or leave a message if an alarm occurs.  This external relay can also be wired into a building alarm system.

Please send me a data sheet.

Downloads and backs up to a PC with the free secure software

Download and install the TView software to any PC and you can access any TV2 logged data on demand or automatically.  This software will discover any TV2 plugged into a USB socket on the PC so the user can download a chart of the logged data for archiving or printing.  An IP address can be assigned to any TV2 with the wired Ethernet connector so that it appears on your Local Area Network.

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


The TV2 alarm/logger, has a number of alarms which have to do with the TV2 itself, and additional alarms for the conditions being monitored by the sensors.  Any active alarm is indicated visually on the TV2 with a message, a blinking screen and in some cases a change of color.

Most alarms cause the external normally-open (N/O) dry-contact relay to close to trigger an auto dialer so that phone calls are made to alert the staff when ever 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
  • Sensor alarm not set - alarm disables in red appears on display

Visual alarm notice on ThermaViewer

Tv2 monitor alarms

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

How safe is your data?

All collected data is stored in non-volatile memory so even if you turn the TV2 alarm/logger off and come back 10 years later your data will still be there. 

During power outages the rechargeable internal batteries (Lithium Ion) will continue to operate the TV2 for as long as 100 hours.  And by operate we mean everything continues to work.

  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 Used?

The TV2 Alarm can be used anywhere you want to monitor environmental conditions. 

For example: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 Alarm monitors four different areas.Current Status area for one sensor

Since the TV2 Alarm can track four different temperatures, humidities, or pressures simultaneously you only need one Easy-Touch™ display for the four sensor.  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 in each area.  The picture at the right is one fourth of the QuickCheck™ display showing the conditions for one of the sensors along with the maximum and minimum temperature recorded.  The current battery charge for the wireless sensor is also displayed. 

TV2 chart displayIn addition to the QuickCheck™ display you can see the historical conditions for each area or appliance being monitored.  To look at logged data for one of the sensors simply touch the Easy-Touch display.

With one touch on the display a data history chart immediately opens up so you can see what happened last night, last week, last month or even last year.  To see additional history just touch the display again and scroll bars will appear.  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 from each sensor. 

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

All Logged Date is Encrypted to Comply with 21 CFR 11 Requirements

Once the data is collected and stored in the non-volatile memory of the TV2 alarm it is impossible for the user to alter it.  It can only be viewed or printed out, not changed.

Logged data can be downloaded to a PC and even saved as an encrypted file. And once saved it can only be viewed and/or printed out as a chart.  If the data has been electronically signed the 'padlock' icon appears on the chart   A signed file can only be opened if the same username is entered.

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 as part of the 21 CFR 11 requirement.

                                      TView chart on compuer scree

Once the encrypted TV2 data has been copied to a PC it can be exported in unencrypted form to 'Excel'.  Once in Excel it can be viewed and manipulated, but the data is not encrypted and no padlock or verification indication is shown.  The padlock and verification pen only appear on printouts or on a computer screen if the data integrity has been maintained.

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Designed and Manufactured in the USA

2009 Two Dimensional Instruments, LLC
(modified: October 18, 2016 09:10 AM)