RF313-TH Diligence WiFi Data Logger Temperature & Humidity


The RF313-TH Diligence WiFi Temperature and Humidity Data Logger measures the temperature and humidity of the local environment with its integral sensor. Data is transmitted wirelessly via your WiFi network to the Comark Cloud.

  • Temperature range: -20°C to +60°C / -4°F to +140°F
  • Simple installation using existing WiFi network
  • Supplied with wall bracket and micro USB lead
  • Comark Cloud charges apply
  • Warranty: 1 year

Data is transmitted wirelessly via your WiFi network to the Comark Cloud

The Comark Cloud Dashboard is your new online Home for your Loggers and provides easy access to the critical information regards your system, including; the status of your favourite devices at a glance, review recent device events, view data and clear alerts, quickly navigate to the detail on all your devices.

Simply log on to the Comark Cloud Dashboard via your PC, Tablet or Phone.

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. 

Although the Diligence WiFi data loggers have an impressive range this can be increased by using WiFi extenders.

The RF313-TH Diligence WiFi Temperature and Humidity Data Logger is a low power device containing a rechargeable battery. When configured, the data logger can operate for up to six months*. The battery can be recharged via a standard +5V wall adapter RF320 (UK/US) or a USB port using the cable provided.

The RF313-TH 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 from -20 to 60°C (-4 to 140°F)
  • Humidity measurement range from 0 to 100%
  • Rechargeable internal lithium polymer battery
  • Easy data logger set-up using free PC software application
  • Built in temperature and humidity data logger with WiFi capabilities and integrated display
  • Temperature selection in °C and °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 via WiFi
  • Max and Min readings
  • 802.11b compliant
  • Protection rating IP55
  • Capable of logging greater than 500,000 data set 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 wall bracket and 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)
Temperature measurement range-20°C to +60°C / -4°F to +140°F
Humidity measurement range0%RH to 100%RH
Temperature internal resolution±0.1°C / ±0.18°F
Humidity internal resolution1.0%RH
Temperature accuracy (overall error between +5°C and +60°C)±0.5°C
Temperature accuracy (overall error over the full °C range)±1.5°C
Temperature accuracy (overall error between +41 to +140°F)+/-0.9°F
Temperature accuracy (overall error over the full °F range)+/-2.7°F
Humidity accuracy (overall error between 0%RH and 100%RH)±5.0%RH
Logging rate (user configurable)Transmisson rate from every 10 seconds to every 12 hours
Transmission period (user configurable)1 minute to 12 hours
Operating temperature range-20°C to +60°C / -4°F to +140°F
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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