Wireless Basic Gen 2 Water Temperature Sensor

  • Part #:RFB-0228-2
  • Weight:0.7oz
  • Availability: In Stock

Price: $78.75
Price: $106.31


This Basic Gen2 900MHz Water Temperature Sensor uses a NTC type thermistor probe with 3' lead wires to measure water temperature. The wireless sensor is best used for water/liquid storage tanks, manufacturing processes, swimming pools and aquariums. Can be easily installed and mounted for long term use.


  • Superior Wireless Range 1,200+ ft non-line-of-sight through 12+ walls*
  • At 1 hour heartbeat setting, coin cell battery will last ~ 1-2 Years**
  • Frequency-Hopping Spread Spectrum (FHSS)
  • Improved interference immunity
  • Encrypt-RF® Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
  • Over-the-air updates (future proof)
  • 3' lead wire length with water tight seal****
  • The software also has multilevel passwords and the highest level encryption to meet 21CFR part 11 compliance
  • Mounting Tape & Mounting screws included



Replaceable 3.0V (CR2032) Coin Cell Battery

Supply Voltage

2.0-3.8 VDC***

Operating Temperature Range (board circuitry and coin cell)

-7° to +60°C (+20° to +140°F)

Optimal Battery Temperature Range (coin cell)

+10°C to +50°C (+50°F to +122°F)

Probe Temperature Range

-40°C to +100°C (-40°F to +212°F)

Sensor Accuracy

+/- 1°C (1.8°F) - Can be calibrated to +/- 0.25°C by Scigiene

Integrated Memory

Up to 3200 Sensor Messages


1.125” x 2.0” x 0.875”

Additional Information

* Actual range may vary depending on environment

** Battery life is determined by sensor reporting frequency and other variables

*** Hardware cannot withstand negative voltage. Please take care when connecting a power device. 

**** While the wire leads and thermistor have a water tight seal, the electronics housing (RF portion) is not sealed for wet environments or outdoor use. If needed, we recommend using Monnit industrial water temperature sensors.

Technical Information

Required Accessories

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