Ordering Info and Specifications

Bus Probes are available in four versions:

  • BP#01 – ambient temperature sensor.

  • BP#02 – ambient temperature and humidity sensor.

  • BP#03 – ambient light sensor.

  • BP#04 – 3-axis accelerometer.



Half-duplex (two-wire) RS485 interface

Communications parameters:



Modbus RTU

Power supply range


(ambient temperature sensor)

- Measurement range: -40 to +125°C*;
- Measurement resolution: 0.25°C;
- Measurement accuracy: ±1°C.

(ambient temperature and humidity sensor)

-Temperature measurement:
  -Measurement range: -25 to +50°C;
  -Measurement resolution: 0.5°C;
  -Measurement accuracy: not specified.
-Humidity measurement:
  -Measurement range: 10 to 90%RH;
  -Measurement resolution: 0.1%RH;
  -Measurement accuracy: ±5%RH;
  -Temperature range for valid humidity measurements: +5 to +50°C.

(ambient light sensor)

- Measurement range: 1 to 65528 lux;
- Measurement resolution: 1 lux;
- Measurement accuracy: 1 lux.

(3-axis accelerometer)

- Independent X, Y, and Z axes;
- Measurement range for each axis: ±6G;
- Measurement resolution for each axis: 0.003G;
- Measurement accuracy for each axis: 0.1G.

Operating temperature range

-40 to +85 degrees C

Operating relative humidity


Mechanical dimensions
(excluding terminal blocks)

40.0 x 36.0 x 19.0 mm

* The actual measurement range is limited by the operating temperature range of the Bus Probe itself, which is -40 to +125°C.

All specifications are subject to change without notice and are for reference only. Tibbo assumes no responsibility for any errors in this Manual, and does not make any commitment to update the information contained herein.

Think the above table should contain additional data? Do not just assume that you know the answer — talk to Tibbo! Remember that the ultimate responsibility for all decisions you make regarding the use and the mode of use of Tibbo products lies with you, our Customer.