High Accuracy WiFi Temperature Probe Data Logging Sensor

  • WiFi capability and integrated display
  • Wireless connectivity to PC via WiFi
  • Temperature accuracy ±0.1°C (-10 to +70°C)
  • Measurement range from -40 to +125°C (-40 to +257°F)
  • Temperature display resolution to 0.01°C
  • Calibration certificate available

Product Description


High Accuracy WiFi Temperature Probe Data Logging Sensor

Now Cloud enabled!

The EL-WiFi-TP+ sensor measures the temperature of the environment in which it is situated. This high accuracy version is accurate to ±0.1?C. Data is streamed wirelessly over any WiFi network and can be viewed on a PC using our free software package or on the EL-WiFi-Cloud*. During configuration, the sensor will search for an existing wireless network whilst physically connected to the PC. It can then be placed anywhere within range of the network. If the sensor temporarily loses connectivity with the network, it will log readings until it is able to communicate again with the PC application or cloud service (max 120 days at 10 second sample interval). Although the EL-WiFi sensors have an impressive range this can be increased by using WiFi extenders.

The EL-WiFi-TP+ is a low powered battery device. When configured using typical transmission periods (e.g. once every 5 minutes) the sensor will operate for over one year (at room temperature). The battery can then be recharged via a PC or USB +5V wall adapter using the USB lead provided or can be permanently powered by the USB wall adapter.

The software installed on the PC will allow set-up, data logging and data review. Set-up features will include sensor name, °C/°F, sample rate, and high/low alarms. Once configured, historic data can be viewed via the graphing tool or exported into Excel. This software is available to download for free from www.lascarelectronics.com.

The sensor is a freestanding unit, however, it can be attached to a wall or vertical surface using the bracket and screws/sticky pad provided.

It is supplied with a thermistor probe with an attachment so that it can be securely fixed to flat surfaces. It is perfect for a wide range of temperature monitoring situations e.g. manufacturing processes, cold storage and hot storage. The probe is removable so alternatives can also be used to meet specific requirements providing they operate within the same temperature range.






USB supply voltage





Operating temperature range (sensor only)

-20 (-4)


+60 (+140)

°C (°F)

Logging period (user configurable)

10 sec

10 min

12 hrs


Transmission period (user configurable)

1 min

1 hr

24 hrs


Temperature measurement range

-40 (-40)


+125 (+257)

°C (°F)

Temperature measurement resolution





Temperature display resolution





Temperature accuracy


±0.1 (-10 to +70°C)

±0.3 (-40 to +125°C)



* Dependant on transmission rate, may be less with frequent transmissions 
Warning – do not exceed operating temperatures


The EL-WiFi-TP+ is suitable for a wide variety of applications, particularly where remote monitoring is important, these include:

– Environmental and weather monitoring
– Agricultural and livestock
– Food & drink
– Building & site monitoring

Lascar’s calibration certificate is traceable to UKAS standards. Customers in the UK, EU, Rest-of-world will receive UKAS traceable certificates.

A calibration certificate is not supplied as standard with a data logger. It is at extra charge.

Please note that a calibration certificate can only be provided with a data logger at the time of original purchase.

The EL-WiFI-TP+ is not supplied with software, however the control software is downloadable, free-of-charge from Lascar’s website. The software is compatible with Windows XP, Vista and 7 (including 64-bit operating systems). Note, the software is not compatible with Mac or Linux

Download the latest version of the software as instructed in guide sheet supplied along with the item.

Download brochure.