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OEM Wireless Sensors

OEM Wireless Low Temperature Sensor

The Low temperature wireless sensor uses an RTD to accurately measure temperatures from -200°C to +162°C (-328°F to +325°F). Perfect for low temperature critical applications such as freezers and coolers.

All sensor data is securely transmitted through an OEM wireless gateway to the iMonnit Online Sensor Monitoring software where it is stored and viewable from any web enabled device. The iMonnit online software system is completely white label (private brand) capable, allowing you to offer the online monitoring service as your own. Email and SMS text messages can be configured through the online system to alert users immediately when a defined parameter has been met or exceeded.

« Learn more about OEM online monitoring software

Product Features:

  • 900, 868 and 433MHz operating frequencies
  • 250 - 300 ft. non-line-of-sight device range*
  • 2 replaceable AA 1.5V batteries.
  • At 1 hour heartbeat setting, included batteries will last over 4 Years. **
     
  • Accurate to +/- 0.3°C @ 0°C.
  • RTD temperature range: -200°C to +162°C
    (-328°F to +325°F).
  • Good for extremely low temperature applications.
  • User defined thresholds for alerts and notifications.

* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting
    frequency and other variables.

 
Buy Wireless Low Temperature Sensors
 

OEM Wireless Low Temperature Sensor - Technical Specifications
 
Documentation
 
OEM Wireless Low Temperature Sensor Data Sheet OEM Wireless Low Temperature Sensor Data Sheet
 
 
RF Board Specifications
Available Operating Frequencies 900 MHz (25 Channels)
868 MHz (5 Channels)
433 MHz (15 Channels)
Device Transmission Range 300 - 500 ft. Non-LOS
Approximate Battery Life 300,000 Transmissions
(~ 2-5 Years Depending on Settings*)
Supply Voltage 2.0 - 3.6 VDC **
Current Consumption 0.7 μA (sleep mode)
2 mA (radio idle/off mode)
2 mA (measurement mode)
25 mA (radio RX mode)
35 mA (radio TX mode)
Electronics Operating Temperature Range -40°C to +85°C ( -40°F to +185°F ) ***
Performance 0.7% BFSL Accuracy
Certifications 900 MHz product; FCC and IC Certified.
Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-RFSC1)
Complies with Industry Canada standards. (IC: 9794A-RFSC1)

868 and 433 MHz product; CE Certified.
Complies with CISPR 22:2008-09 / EN 55022:2010 - Class B and ETSI EN 300 220-2 V2.4.1 (2012-05).

RTD Specifications
Sensor Type DIN 43760 Class B
RTD Temperature Range -200°C to +162°C
(-328°F to +325°F)
RTD Accuracy +/- 0.3°C @ 0°C
Dissipation Constant 2mW/°C
Thermal Time Constant 15 sec max.

* Battery life depends on sensor reporting frequency and other variables.
** Hardware can not withstand negative voltage. Please take care when connecting power.
*** At temperatures above 100°C, programmed memory in electronics can be lost.