Monnit wireless low temperature sensors use an RTD to accurately measure temperatures from -200°C to +162°C. Perfect for low temperature critical applications such as freezers and coolers. User customization allows you to set the frequency of sensor readings and create notifications from the system when certain criteria have been met or exceeded.
The Low Temperature Sensor is not meant for wet, damp, high humidity environments. This sensor should only be operated in dry, low humidity environments. Should you need a temperature sensor that operates at extreme temperatures and can withstand getting wet or condensed on, please consider our Thermocouple Sensors.
*Click here for NIST Re-certification for Low Temperature Sensors. Certification is good for 13 months.
In order to program the sensor to connect to your wif-fi network, you will need a Wi-Fi programming cable and the free MoWi setup utility. The MoWi setup utility is currently available for Windows® PC's only. Mac and Linux are not currently supported!
* Actual range may vary depending on environment.
** Battery life is affected by reporting frequency (heartbeat), sensor type, Wi-Fi security type, distance from Wi-Fi router and other variables.
Low Temp - RTD / Thermistor Specifications
|Sensing Element||DIN 43760 Class B|
|Thermal Time Constant||15 sec max.|
|RTD Temperature Range||-200°C to +162°C (-328°F to +325°F)|
|RTD Accuracy at 0°C||+/- 3.3°C Standard (+/- 0.5°C Calibrated)|
|Battery Type||2 Replaceable AA 1.5 V Batteries|
|Max Operating Temperature Using AA Alkaline||-18°C to +55°C (0°F to +130°F)|
|Max Operating Temperature Using AA Lithium||-40°C to +85°C (-40°F to +185°F)|
|Battery Life||Up to 5 years depending on sensor type, Wi-Fi security, distance from Wi-Fi router, reporting frequency and other variables. (Testing surpassed 90,000 transmissions until battery depletion.)|
|Wi-Fi Security Standards||Open, WEP, WPA, WPA2 Security Standards|
|Wi-Fi Security Programming||Via USB cable (sold separately) and downloadable PC software.|
|Network Settings||Auto DHCP/DNS or Static|
|Data Logging (iMonnit Basic)||On Wi-Fi disruption, unit will log the most recent 50 readings and transmit when Wi-Fi connection is re-established.|
|Data Logging (iMonnit Premiere)||On Wi-Fi disruption, unit can log up to 50,000 readings and transmit when Wi-Fi connection is re-established.|
|Power Consumption||4uA sleep, 35mA active RX, 180mA TX (at +12dBm)|
|Wi-Fi Data Rate||Auto configures to best rate for maximum range.|
|LED Lights||Status / Activity|
|Network Connectivity||Connects to hidden and visible Wi-Fi networks|
|Operating Frequency||802.11 b/g (2.412 - 2.484 GHz)|
|Certifications||FCC ID: T9J-RN171. IC: RSS-210 low-power communication device. CE ID: 0681.|
|Device Range||Up to 100 ft. (Typical to standard Wi-Fi devices)|