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Needle Sensors

Needle sensor -N version
Needle sensor for piercing -NP version
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Pierce your sample

All Unisense microsensors can be equipped with a steel needle, except the N2O microsensor. This modification is useful if you are measuring through a rubber septum, or in coarse or hard samples where a hole has been drilled prior to microsensor measurements.

The needle sensors are strong on the longitudinal axis, but due to the larger sensor tip diameter, Unisense does not recommend to use the sensors for microprofiling in sediment or biofilm.

Needle-sensor

The microsensor tip is inserted into a steel needle giving the sensor maximal strength on the longitudinal axis.

Options needle sensors

Dimensions Price Comments
1.60*40 mm Standard -NP version needle sensor for piercing
1.10*40 mm Standard -N version needle sensor
0.80*40 mm + 10% not pH electrodes
1.20*50 mm + 10% -
1.20*40 mm + 10% -
1.60*40 mm + 10% made as -N version
2.10*80 mm + 20% not available for all sensors - please inquire

 

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Profiles in salty crusts

Profiles in salty crusts

Unisense microsensors were succesfully applied to measure salty crusts in the Red Sea in Israel. 

Read more

Kristensen,E. et al (2011), Contrasting effects of the polychaetes Marenzelleria viridis and Nereis diversicolor on benthic metabolism and solute transport in sandy coastal sediment, Mar Ecol Prog Ser, 125 - 139, vol. 425

O'Connor,B.L. et al (2008), Scaling hyporheic exchange and its influence on biogeochemical reactions in aquatic ecosystems, Water Resources Research, W12423 - , vol. 44 Read abstract

Quintana,C.O. et al (2011), Burrow ventilation and associated porewater irrigation by the polychaete Marenzelleria viridis, Journal of Experimental Marine Biology and Ecology, 179 - 187, vol. 397

See all publications