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For technical assistance call 888-248-7103, M-F, 9:00 - 4:00 EST or send questions to


Field Calibration Procedures
Note: To perform the field calibration you will need a NIST calibrated thermometer. Customers have purchased and used this thermometer successfully from Fisher Scientific®.


Field Calibration procedures for VM605E, VM610E

Field Calibration procedure for VM608E

Field Calibration procedure for M307, M308, M309

Field Calibration procedure for CM705E


M309 WiFi Setup Manual


CM706E Operation Manual


Video: Getting temperature data from your Temperature Guard device.

Other Helpful Information

How to upgrade models hardwired Ethernet adaptor's firmware (not for models with WIFI adaptors such as the M309) 

2_Step Authentication: How to configure Gmail SMTP settings when Google enables 2-Step Authentication

2-step verification adds an extra layer of security to your Google Account

Sample NIST Calibration Certificate
This is a sample NIST calibration certificate that can be purchased for all of our monitors. As you can see, our calibration certificate is extensive. Each temperature sensor input is tested at five calibration points.

Data Capture Service keeps stopping
There have been a few reports of the Data Capture service stopping.  It seems to be caused by a common Windows issue.


Calibration FAQs / Help


Temperature Accuracy Report

How to leverage Dropbox to access temperature data files from anywhere


Tips with using Exchange Server with Data Capture

​MSDS Documentation


MSDS for BP2-G Temperature Sensor in glycol filled vial

MSDS for the -V temperature sensors in glass bead filled vials

MSDS for NIMH batteries used for battery backup

Retired Product Manuals

Home Guard VM500-2

Temperature Guard VM500-3

Refrigerator/Freezer Wireless Guard - M305
Humidity and Temp Guard - M306
Refrigerator/Freezer Guard VM505
Refrigerator/Freezer Guard VM505E

Refrigerator/Freezer Guard VM605E rev 12
Computer Room Guard VM508E
Property Guard VM510
High Temp Guard VM520
Input Guard VM506
Power Guard VM509
Freezer NetGuard - M303
Server Room NetGuard - M304

Certificate of Calibration FAQs

Q) Should I calibrate the temperature sensors after they are installed?
A) Yes, it is always good practice to verify that the installation was done correctly and that the temperatures are reading accurately. If you did not need to add extension wire to a temperature sensor then the temperature accuracy will be within +/- 1ºF.

Q) Should I purchase the NIST traceable calibration certificate for the monitor as well as the temperature sensors?
A) If you are getting vaccines from the VFC program or other program where you have to supply a certificate of calibration, then absolutely YES.

Q) How long are the NIST calibration certificate for the temperature monitors valid?

A) The calibration certificate is valid for two years. 

Q) How long are the NIST calibration certificate for the temperature sensors valid?
A) The calibration certificate is valid for at least 15 months.


Q) How do I get my system re-calibrated?


A) There are several options of obtaining a certificate of calibration:

1) You can calibrate the monitor yourself if allowed by your state regulators. Please see our Field Calibration Procedure for details.
2) Hire an outside calibration house to perform the calibration.
3) Return the monitor to us for calibration. Do not return the temperature sensors.  If the sensor's calibration cert has expired, it is less expensive to purchase new sensors.

Contact: for pricing.

Option 1 is probably the least expensive method.   See our Field Calibration Procedure for details.

Option 2 is most likely more expensive than option 1. The calibration house would follow the same procedure in option 1) and supply you with the certificate.

Option 3 Temperature Guard can perform the calibration in less than 5 days.  Ship the monitor only, not the temperature sensors.  Be sure to include your contact information.


Ship the monitor to:

Microtechnologies, Inc.

128 Garden St.

Farmington, CT  06032

Please note that it is always more accurate to calibrate the system in place because this will calibrate the complete system.

Field Cal
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