smarTROLL Handhelds

smarTROLL Handhelds

Availability: In stock

Please log in to enter your reservation dates and estimate costs.

* Required Fields



smarTROLL Handheld Systems:

The smarTROLL Multiparameter Handheld system allows you to instantly collect data on 14 water quality parameters, all from your Android™ or iOS™ mobile device. Our reliable water quality sensors record conductivity, pH, ORP, dissolved oxygen, water level/pressure, salinity, total dissolved solids, resistivity, density, air and water temperature, and barometric pressure, sending data wirelessly to your smartphone or tablet.

The smarTROLL Rugged Dissolved Oxygen Handheld system merges smartphone mobility with an innovative optical RDO sensor. Ideal for water quality testing spot checks, the probe measures and records dissolved oxygen, barometric pressure, air and water temperature, sending data wirelessly to your iOS™ or Android™ smartphone or tablet.

smarTROLL MP or smarTROLL RDO Handheld System:


  • Real-time data
  • Instant data-sharing
  • Replaceable Battery Pack (iOS) or rechargeable Power Pack (Android)
  • Site tagging with photos and GPS coordinates
  • Auto-calibration functions
  • Field-replaceable sensor
  • NIST calibration report for guaranteed accuracy
  • Compatible with low-flow kit (sold separately)


  • Reduce costs – Use your existing iOS or Android mobile device and avoid buying bulky, expensive meters.
  • Save time in the field – The intuitive mobile app (iSitu App for iOS or VuSitu App for Android) simplifies data collection, with calibrations that last for months.
  • No training required – And, no waiting for warm-up or setup.
  • Smart, easy monitoring – Sensor is pre-calibrated at the factory.
  • Streamline data sharing – Get instant results and email them on the spot.
  • Get built-in support – Access free, 24/7 tech support right from the app.
  • Faster spot checks – Device automatically recognizes calibration solutions and corrects for barometric pressure.

Operating temp | -5 to 50° C (23 to 122° F)

Dimensions and weight | Dimensions: 4.7 cm (1.85 in.) OD x 26.9 cm (10.6 in.) with restrictor installed (does not include connector).| Weight: 694 g (1.53 lbs)

Wetted materials | PVC, 316 stainless steel, titanium, Acetal, Viton®, PC/PMMA

Environmental rating | Probe: IP68 with all sensors and cable attached. IP67 with sensors removed and cable detached. | Battery pack: IP67 with battery cover closed. | Power Pack: IP67

Reading rate | 1 reading every 10 seconds; data logged to a mobile device.

Cable | Black polyurethane. Standard lengths available: 1.5 m, 4.6 m, 9.1 m, 30.5m (5 ft, 15 ft, 30 ft, 100ft)

Standard Sensors

Level, Depth, Pressure


Dissolved oxygen Optical RDO® Fast Cap



Temp., sample (probe)

Barometric pressure

Spec Sheets

smarTROLL Multiparameter Handheld

smarTROLL RDO Handheld


  1. A smarTROLL MP Probe or smarTROLL RDO Probe
  2. Weighted restrictor
  3. smarTROLL Power Pack for Android and charging unit (shown), or smarTROLL Battery Pack for iOS (not shown)
  4. Cable (length varies based on chosen configuration) - Every cable includes patented twist-lock connectors and Kellems grip.
    Calibration cup and Quick Start Guide (not shown)

smarTROLL Multiparameter Handheld