RX Runtime Smart Sensor
S-RTA-M006 Runtime Smart Sensor
  • Runtime Smart Sensor
  • Runtime Smart Sensor overmold design makes deployment fast and easy
Part # S-RTA-M006

RX Runtime Smart Sensor

6m cable



The RX Runtime Smart Sensor measures %On/Off of any AC-powered device with an AC current switch, and time Open/Close of doors, switches, or contact closures - ideal for equipment runtime monitoring, boiler efficiency monitoring, pump monitoring, and engine monitoring. This sensor is compatible with HOBO RX Stations.

  • Plug-and-play smart sensor
  • Works with all HOBO RX stations 
  • Automatically communicates configuration data to the station
  • 1-second runtime resolution 
  • 6m cable length

In what environment does this sensor operate?

This sensor operates in indoor and outdoor environments.

What measurements does this sensor support?

The S-RTA-M006 sensor supports the following measurement: Runtime

The country of origin for this product is the United States.

Choose measurement system:

Some specifications display both measurement systems and/or refer to other similar products when mentioned.

Input Sampling Period

1 second

External Contact Input

Solid state switch closure, logic driven voltage output, or open/closed mechanical switch

Preferred Switch State

Normally open

Solid State Switch Closure

Input Low: < 10 KΩ; Input High: > 300 KΩ

Logic Signal Level

Logic 0: < 0.4 V DC, Logic 1: > 2.5 V DC

Internal Weak Pull-Up

100 KΩ

Input Range

0 to 3.6 V

User Connection

24 AWG wires, 2 leads: white(+), black(-)

Operating Temperature Range
-40° to 75°C (-40° to 167°F)
Time Accuracy

±4 seconds due to potential clock differences between the sensor and the station. Note that longer logging intervals can result in the maximum error.

Overall Cable Length
6.5 m (21.3 ft.)
Housing Materials

Weatherproof polyamide housing for smart sensor adapter

Length of Smart Sensor Cable*
50 cm (1.6 ft.)
200 g (7.06 oz)
Number of Data Channels


Bits per Sample

12 bits for channel logging runtime as percent
16 bits for channel logging runtime in seconds

Measurement Averaging Option


Compliance Marks

CE Compliant UKCA - UK Declaration of Conformity

*A single HOBO RX station can accommodate 15 data channels and up to 100 m (328 ft) of smart sensor cable (the digital communications portion of the sensor cables).

  • RX Runtime Smart Sensor with 6m cable and 2 wire nuts

The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below. Our user forum can also be a valuable resource for questions, use cases and general feedback. Share with us today, here!

FAQ Tab Header 

If you have a question that’s not listed below, contact our Sales Application Specialists, who will be happy to help you!

FAQ Tab 

What is the preferred switch state of the sensor?


Normally open is the preferred switch state of the sensor.  


Which measurements does this data logger support?


The HOBO RX Runtime Sensor measures the amount of time between the opening and closing of a contact closure over the logging interval.


In what environment does this sensor operate? 


The HOBO RX Runtime Sensor is suitable for both outdoor and indoor environments. 

Customers Also Bought


Measure runtime (time-of-use) of equipment with the CSV-A8 split-core AC current sensor along with a compatible HOBO data logger. This UL-listed sensor has built-in on/off status lights and provides an adjustable current threshold of 0.5 to 175 amps. Simply install the sensor around a current-carrying wire to the equipment to be monitored and then connect the sensor to a compatible UX90 or UX120-017 data logger. 

Add to Cart
Compare Product


The compact and rugged HOBO MicroRX Station is an easy-to-deploy, low-cost cellular solution for long-term, reliable field monitoring. Two power source options are available: a solar panel for extended deployments, and user-replaceable batteries for flexible mounting in covered or protected locations. The station includes inputs for up to five of Onset’s research-grade plug-and-play sensors, and can be ordered with an additional water level sensor input with integrated flow conversion. Configurable station-side alarms trigger immediate notifications of critical conditions, and Onset’s cloud-based HOBOlink platform makes it easy to view, access, and share data.


The HOBO RX3000, Onset’s most flexible remote data logging station, provides instant access to site-specific environmental data anywhere, anytime via the internet. The station combines the versatility and sensor quality of more expensive systems, an onboard LCD display, and the convenience of plug-and-play operation. The RX3000 is a configurable system (see "Configure System" tab below).

The RX3000 station is the basic component of the cost-effective and scalable HOBOnet Field Monitoring System for crop management, environmental research, and greenhouse operations.


The Temperature/Relative Humidity Smart Sensor is designed to work with all Onset data loggers that accept smart sensors. All sensor parameters are stored inside the smart sensor, which automatically communicates configuration data information to the logger without any programming, calibration, or extensive user setup.

If an 8m cable is preferred, please see Temperature/Relative Humidity (8m cable) Smart Sensor.

Also available in a wireless model for use with the HOBOnet Field Monitoring System.

Add to Cart
Compare Product


Recently Viewed