Six plastic sieves with stainless steel mesh, cover and bottom collector.

Convenient pH testing. OHAUS Starter pH Pen Meters offer a convenient way to measure pH, or the relative acidity or alkalinity of a sample at a given temperature. The pH pen meters can be completely operated with just one hand, freeing up your other hand to handle samples.

Separate soil ranging in size from pebbles to silt.

For water clarity measurements.

Three measuring cups with handles.

Simplified dissolved oxygen water sampler designed for use in the field.

Lightweight, multi-use storage pail with carrying handle.

Columbus-type caliper with dual scale.

Instantly measures soil moisture and light conditions — no batteries required.

Compact meter reads from 0 to 1999 foot-candles with resolution from 0.1 to 1.

Combination of hydrogen with oxygen generates a DC current to power an electric motor.

Measure inches, centimeters and degrees using this flexible angle ruler.

Teaches sampling techniques, careful measurement and data recording.

Determines water's temperature, sediment content and visibility.

Premium quality, solid North American Maple.

Demonstrate the workings of a complete clean energy system on a miniature scale.

Gather the samples you need regardless of soil type.

Easy-to-use, easy-to-clean, galvanized-steel sampling tube.

Ideal for long-term water-quality monitoring.

Portable, lightweight meters feature productivity and versatility in the field or lab. OHAUS Starter Water Analysis Portable Meter is a compact meter with intuitive software/organized display for ultimate usability.

An affordable, safe, and reliable screening test to identify lead in drinking water. Ideal for classroom studies or the professional screenng multiple tests on campuses, office buildings, etc.

Convert mechanical energy into electrical energy.

Unique design for constructing square cubic meters or connecting meter sticks.

Smooth, hardwood solid shapes.

Retrieves with ease — one line means no more tangles.

Measures phosphate levels from 0, 100, 200, 300, 500, 1000, 2500 ppb in 15 seconds

An introduction to important aspects of soil science.

Extract organisms from soil samples, identify soil organisms, study characteristics of arthropods and compare different soil samples for organism population density.

Easy-to-use test for colorless, odorless and tasteless radon gas.

Used to determine transparency of water in lakes, streams, oceans.