Envco – Environmental Equipment

If you need to know the soil suction values at multiple depths, have diverse locations, and demand a quick response, with accurate values there's nothing better than a 2900F Quick Draw. The patented Model 2900F1 Quick Draw Tensiometer is designed for portable field or lab use. It responds quickly and equilibrates rapidly with the immediate soil tensions providing accurate measurements many times in less than a minute. The specialized Null Knob provides a "bracket" technique allowing one to deduce or interpolate the final tensional value in few seconds to a few minutes depending on soil type and conditions.

Constructed from heavy duty brass, nickel plated, with interior micro tubing to eliminate fluctuations in readings due to temperature changes. Large, hermetically sealed 3in (7.62 cm) dial gauge provides easy 1cb reading precision. Comes with carrying case for 2900, Coring Tool and Clean Out Rod.

The Soil Coring Tool is first used to core an access hole to the desired depth of measurement. The Quick Draw is then inserted into the access hole and the ceramic sensing tip is now in contact with the soil. The Null- Knob is used to bracket above actual value (gauge value drops as water is pulled from the soil), then it's set below actual value (gauge value rises as the water is removed from the Quick-Draw). Done several times it's "bracketed to a solution" the final value.

The coring tool, cleaning tool, and tensiometer are then returned to the carrying case for transportation and storage. An accessory kit is also provided, which contains a replacement ceramic sensing tip, O-rings, screwdriver, and allen wrench. Gauge shown to display face readout, comes ready for vertical viewing.

Ordering Information
2900F1L12 QUICK DRAW SOILMOISTURE PROBE, 12-INCH LENGTH (30 cm) 2.30 lbs. (1.04 kgs)
2900F1L18 QUICK DRAW SOILMOISTURE PROBE, 18-INCH LENGTH (45 cm) 2.70 lbs. (1.22 kgs)
2900F1L24 QUICK DRAW SOILMOISTURE PROBE, 24-INCH LENGTH (60 cm) 3.35 lbs. (1.51 kgs)