RF312-TP Diligence WiFi Data Logger with Thermistor Probe


The RF312-TP Diligence WiFi Temperature Data Logger with Thermistor Probe.

The Diligence WiFi RF312-TP data logger measures and records temperature via a range of Comark thermistor probes.

The probe can be used in a wide range of temperature situations such as walk-in and reach in freezers and refrigerators, blast chillers, hot and chilled food storage cabinets.

The Comark Cloud is used to monitor and report on your devices, either at a single location, or at multiple sites around the world. No more missed records, no more time-consuming paperwork! You can access your Comark Cloud account from wherever you are in the world using any internet enabled device, 24 hours a day, 7 days a week.

The Comark Cloud makes the task of continuously monitoring your workplace environments easier, by providing automated temperature and humidity monitoring and associated alerts, in conjunction with your RF300 WiFi devices.

With unlimited storage of your temperature and humidity records. Data can be viewed for multiple locations from anywhere in the world using any internet enabled device.

Enjoy an Audit Trail, with detailed reporting, data exporting and notification options, including e-mails and SMS**

You must first Register with Comark and Create a Cloud Account via their website you will find the link below. You may then setup your loggers quickly and easily with the free with the App (Recommended) or PC software.

Comark Cloud Account Annual Subscription is required with Each RF300 Device.
It is advised to consider where savings may be made using Dual Devies
Purchase the required number of Cloud Account Subscription here

Set up, data logging and data review. Set up features will include data logger name, °C/°F, sample rate, and high/low alarms. 

The RF300 WiFi Data Loggers continuously and discretely monitor temperature and/or humidity to give you accurate readings around the clock, utilising and leveraging your existing WiFi network, to send and store all data to our Comark Cloud service.

The RF312-TP has a protection rating of IP42 and the probes IP67. The data logger is IEEE 802.11b/g/n compliant, supports WEP, WPA/WPA2 encryption and enterprise networks***.


**SMS via E-mail to SMS service such as TextMagic™ (www.textmagic.com)

The RF312-TP is a low powered battery device. When configured using typical transmission periods (e.g. once every 5 minutes) the data logger will operate for over one year. The battery can then be recharged via a PC or by mains power using the RF320 Power Supply unit, which is available as an accessory.

  • Measurement range -40 to 125°C (-40 to 257°F)
  • Rechargeable internal lithium polymer battery
  • Easy data logger set-up using free PC software application
  • Temperature data logger with thermistor probe
  • Temperature selection in °C or °F
  • Data can be viewed via the graphing tool or can be exported to Excel
  • Configurable high and low alarms with indicator
  • Wireless connectivity to PC or Cloud via WiFi
  • Max and Min readings
  • 802.11b compliant
  • Protection rating IP55
  • Capable of logging greater than 1 million data entries
  • Memory stores all data even if WiFi is temporarily disconnected
  • Fully featured LCD segment display
  • Low battery indicator
  • WiFi connection indicator
  • USB port used for recharging (can only be recharged when the unit
  • is between 0 to 40°C ( 32 to 104°F)
  • Supplied with removable thermistor probe, micro USB lead

NOTE; Cloud Account Application opens a new browser window to www.comarkinstruments.net 

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Technical Specifications

Battery lifeTypically *3-6 Months
USB supply voltage5V (typical)
Probe temperature measurement range-40 to +125°C / -40°F to +257°F
Internal resolution0.1°
System temperature accuracy (-15 to +70°C)±0.8°C
System temperature accuracy (+5°F and +158°F)±1.5°F
System temperature accuracy (-40 to +125°C)±1.5°C
System temperature accuracy (-40°F to +257°F)±3.0°F
Supplied probe length1.0m
Probe clip operating temperature-40 to +100°C / -40°F to +212°F
Logging rate (user configurable)10 seconds to 12 hours
Transmission rate (user configurable)1 minute to 12 hours
Logger DimensionsHeight 97.3mm / 4" x Width 71.3mm / 3" x Depth 26.36mm / 1"
WiFi ComplianceIEEE 802.11b/g/n compliant, supports WEP, WPA/WPA2 encryption and enterprise networks (MS-CHAPv2, PEAP, EAP-FAST, EAP-TTLS)
Warranty1 Year

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