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Tramex DL-RHTX Feedback Temperature and Humidity Data Logger

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  • Measures temperature from -40˚C to 125˚C and humidity from 0 to 100% RH
  • Internal memory for 100,000 data points, wireless connection to smartphone app
  • Works with external humidity & temperature sensor and contact temperature probe

rrp £270.00

now £243.00 (Ex. VAT) £291.60 (Inc. VAT)

rrp £270.00

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  • Description

    Tramex DL-RHTX Feedback Temperature and Humidity Data Logger

    The Tramex DL-RHTX Feedback Temperature and Humidity Data Logger is capable of long-term monitoring of air temperature and relative humidity through its internal sensors. It has an air temperature measurement range of -40˚C to 125˚C and a relative humidity range of 0 to 100% RH. It is also possible to measure temperature and humidity via an external plug-in sensor as well as contact temperature via another external probe with a range of -30˚C to 80˚C.

    The large internal memory of the Tramex DL-RHTX has enough space for 100,000 different data points and has Bluetooth wireless connectivity which is capable of communicating with the user’s smartphone over a distance of up to 50m. Setting up the data logger and starting measurements is extremely easy and all the user needs to do to take advantage of the instrument’s wireless capabilities is download the Tramex Feedback DataLogger App for iOS or Android.

    The Tramex Feedback App is capable of calculating multiple different parameters such as dew point, grains per pound, specific volume, wet bulb, dry bulb, enthalpy, and humidity ratio when measuring temperature and relative humidity. With a contact probe, the App can calculate estimated contact RH, ambient dew point and contact delta temperature.

    It is possible to view realtime readings from the Tramex DL-RHTX on a smartphone screen via the Tramex Feedback App as well as accessing archived data from each connected device. Readings are available in numerical readouts or as part of a thermal condition graph and it is also possible to view information as a psychrometric chart. It is possible to save information in a spreadsheet and there are multiple reporting and exporting functions.

    The Tramex DL-RHTX is available in two different kits. Standard accessories include a DL-RHIE connector cable, tripods, a hardshell case and a quick guide. In the Starter Kit, one Hygro-i2 temperature and humidity probe is provided whilst the EZ kit has five Hygro-i2 probes. Please select your preferred option using the dropdown menu above.

    Tramex part number: FBSK5.1 (Starter Kit) / FBZK5.1 (EZ Kit)

    Key Features

    • Air temperature range: -40˚C to 125˚C
    • Humidity range: 0 to 100% RH
    • Contact temperature range: -30˚C to 80˚C
    • Internal memory: 100,000 data points
    • Bluetooth connectivity over 50m
    • Connects to Tramex Feedback DataLogger App
    • View realtime readings and psychrometric charts
    • Multiple calculation and analysis features
    • Select kit with 2 or 5 Hygro-i2 probes
  • Specification

    • Size: 100mm x 90mm x 35mm (3.94” x 3.54” x 1.38”)
    • Weight: 100g (3.53oz)
    • Construction: ABS enclosure
    • Power: 1 x AA type battery 1.5 Volt
    • Memory: 100,000 data point entries (samples of Ambient RH and temperature; Surface Temperature)
    • Logging Rate: Logger interval adjustable between 5 minutes and 1 hour 
    • Transmission Range: Up to 50m (165ft) line-of-sight 
    • Bluetooth: BLE Bluetooth Low Energy 4.2 compliant, Bluetooth 5 advertising 
    • Included: Wall Mounting and Tripod Stand


    • Range: 0 to 100%
    • Accuracy: ±1.5%RH Range 0% to 80%RH ±2.0%RH Range 80% to 99%RH (@ 25oC (77oF))
    • Resolution: 0.1% over the complete range 
    • Drift: <0.25%RH per year

    Air Temperature

    • Range: -40oC to 125oC (-40oF to 257oF)
    • Accuracy: ±0.1 °C Range 20°C to 60°C; (±0.1oF Range 68oF to 140oF)
    • Sensor protection: PTFE Film protects sensor opening from water & dust 
    • Drift: < 0.03oC (0.04oF) per year

    Contact Temperature Probe (Optional)

    • Units: oC (oF)
    • Temperature Range: -30°C to +80°C ( -20°F to +175°F)
    • Accuracy: ±0.5°C from -10°C to +85°C; ( ±0.9oF from 14oF to 185oF)
    • Resolution: 0.1% over the complete range


    • Power supply: 1 x AA type battery 1.5 Volt
    • Battery life: Over 1 year based on logging intervals of 5mins, using an alkaline battery with a nominal voltage of 1.5V as supplied.


    • CE: EN 61326-1 
    • FCC: Part 15-J ROHS Compliant
  • Supplied Accessories

    Starter Kit

    • Tramex DL-RHTA Feedback Temperature and Humidity Data Logger
    • Tripod stand
    • DL-RHIE connector cable
    • Hardshell case
    • Quick guide
    • Hygro-i2 probe 

    EZ Kit

    • Tramex DL-RHTA Feedback Temperature and Humidity Data Logger
    • Tripod stand
    • DL-RHIE connector cable
    • Hardshell case
    • Quick guide
    • Hygro-i2 probe x 5
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    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

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