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High accuracy Wireless Temperature and Humidity Data Loggers
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
  • OM-EL-WIFI-T Wireless Temperature Data Logger with Internal Temperature Sensor
  • OM-EL-WIFI-TH Wireless Temperature/Humidity Data Logger
  • OM-EL-WIFI-TP Single Channel and OM-EL-WIFI-DTP-PLUS Dual Channel Wireless Temperature Data Logger with Removeable Thermistor Probes
  • OM-EL-WIFI-TC Single Channel and OM-EL-WIFI-DTC Dual Channel Thermocouple Input Temperature Data Loggers
  • High Accuracy Models (OM-EL-WIFI-T-PLUS,
  • WiFi Capability and Integrated Display
  • Wireless Connectivity to PC Via WiFi
  • WiFi Connection Indicator
  • 802.11b Compliant
  • Easy Set-Up Using Free PC Software Download from
  • View and Analyze Multiple Data Loggers Using the PC Application, Including Immediate Graphing of Historic Data
  • Large Memory–Stores All Data Even if WiFi is Temporarily Disconnected
  • Rechargeable Internal Lithium Polymer Battery
  • USB Port Used for Recharging
  • Low Battery Indicator
  • Configurable High and Low Alarms with Indicator
  • Maximum and Minimum Readings
 Manuals (contact with email : [email protected])


The OM-EL-WIFI-TH wireless temperature/humiditydata logger measures the temperature and humidityof the environment in which it is situated via internalsensors. The OM-EL-WIFI-TP (single channel) and OM-EL-WIFI-DTP-PLUS (dual channel) wireless temperature data loggers measures temperature via the included removable thermistor temperature probes. The OM-EL-WIFI-T wireless temperature data logger measures temperature via an internal sensor. The OM-EL-WIFI-TC (single channel) and OM-EL-WIFI-DTC (dual channel) wireless thermocouple input temperature data loggers accept a type J, K, T or N thermocouples. Data is transmitted wirelessly via a WiFi network to a PC and viewed using a free software package.

During configuration the data logger will search for anexisting wireless network while physically connected tothe PC. It can then be placed anywhere within rangeof the network. If the data logger temporarily losesconnectivity with the network, it will log readings until itis able to communicate again with the PC application(max 60 days at 10 second sample intervalfor OM-EL-WIFI-TH); (max 120 days at 10 secondsimple interval OM-EL-WIFI-TP, OM-EL-WIFI-T and OM-EL-WIFI-TC; (max 30 days at 10 second sample interval for OM-EL-WIFI-DTC and OM-EL-WIFI-DTP-PLUS). The range of the data logger can be increased by using WiFi extenders. The probe on the OM-EL-WIFI-TP and OM-EL-WIFI-DTP-PLUS can be used in a wide range of temperature situations e.g.manufacturing processes, cold storage and hot storage.

The OM-EL-WIFI Series are low powered battery devices. When configured using typical sampling periods (e.g. once every 60 seconds) the data logger will operate for over one year. The battery canthen be recharged via a PC or USB 5V wall adaptorusing the USB lead provided.The battery is safely charged when the unit is operatingbetween 0 to 40°C (32 to 104°F). It is protected againstcharging outside this temperature range. Data loggerreadings may be inaccurate during battery charging.

With the OM-EL-WIFI Series the software installed on the PC will allow set-up, datalogging and data review. Set-up features will includedata logger name, °C/°F, sample rate, and high/lowalarms. Once configured, historic data can be viewedvia the graphing tool or exported into Excel. This softwareis available for free from trodeks.The OM-EL-WIFI-TP (single channel) and OM-EL-WIFI-DTP-PLUS (dual channel) wireless temperature data loggers are supplied with removable thermistor temperatureprobes. The probe can be attached to a wall or other flat surface using the included mounting bracket (probe clips into the bracket).

Temperature Measurement Range: -20 to 60ºC (-4 to 140ºF)
Temperature Resolution: 0.5ºC (1.0ºF) display; 0.1°C(0.1°F) graphed/saved data (recorded)
Temperature Accuracy (Overall Error Between 5 and 60ºC): ±0.3ºC typical
Humidity Measurement Range: 0 to 100% RH
Humidity Resolution: 1% RH (display and recorded)
Humidity Accuracy (Overall Error Between 20 and 80% RH): ±2.5% RH typical
Memory: 500,000 temperature and 500,000 humidity readings

Operating Temperature Range (Data Logger): -20 to60ºC (-4 to 140ºF)
Probe Temperature Measurement Range: -40 to 125ºC(-40 to 257ºF)
Temperature Resolution:
    OM-EL-WIFI-TP: 0.1ºC (0.1ºF) display and recorded
    OM-EL-WIFI-TP-PLUS, OM-EL-WIFI-DTP-PLUS: 0.01ºC (0.01ºF) display and recorded
Temperature Accuracy (Overall Error):
    OM-EL-WIFI-TP: ±0.6ºC typical, ±1.0ºC maximum
    OM-EL-WIFI-TP-PLUS: ±0.1ºC typical, ±0.3ºC maximum
    OM-EL-WIFI-DTP-PLUS: ±0.2ºC typical, ±0.6ºC maximum
Probe Clip Operating Temperature Range: -40 to 100ºC(-40 to 212ºF)
Memory: 1,000,000 temperature readings
Temperature Probe (Thermistor):
High temperature flexible cable with 304 SS end cap
Probe Dimensions:
    OM-EL-WIFI-TP: Cable length, 50 cm (19.7");end cap, 25 x 4.8 mm dia (1 x 0.188")
    OM-EL-WIFI-TP-PLUS, OM-EL-WIFI-DTP-PLUS: Cable length, 300 cm (118.1");
    end cap, 75 x 4.95 mm dia (2.95 x 0.19")

Temperature Measurement Range: -20 to 60ºC(-4 to 140ºF)
Temperature Resolution: 0.1ºC (0.1ºF) displayand recorded
Temperature Accuracy(Overall Error Between -10 and 60ºC): ±1.0ºC typical
Memory: 1,000,000 temperature readings

Temperature Measurement Range:
    Type K: -200 to 1350ºC (-328 to 2462ºF)
    Type J: -200 to 1190ºC (-328 to 2174ºF)
    Type T: -200 to 390ºC (-328 to 734ºF)
    Type N: -270 to 1300ºC (-454 to 2372ºF)
Resolution (-99.9 to 999.9ºC or ºF): 0.1ºC (0.1ºF) displayand recorded
Accuracy: ±1.5ºC (±2.7ºF)
Thermocouple Connection: Female subminiature connector
Memory: 1,000,000 temperature readings
Operating Temperature Range (Data Logger): -20 to60ºC (-4 to 140ºF)

Power: Rechargeable internal lithium polymer battery
Battery Life: 1 year typical
USB Supply Voltage: 4.5 Vdc minimum,5.5 Vdc maximum
Logging Rate: 1 reading every 10 sec to 1 every10 hours
Software: WIN XP/VISTA/7/10 (32-bit or 64-bit), downloadfrom
Weight: 43 g (1.5 oz)
Dimensions (with Mounting Bracket Attached):
97.3 H x 71.3 W x 26.36 mm D (3.8 x 2.8 x 1.04")

Note: Because of transmission frequency regulations, these products may only be used in the United States, Canada and Europe.
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