Go Direct* Tris-Compatible Flat pH User Manual, used for any lab or demonstration that can be done with a traditional pH meter, including acid-base titrations, monitoring pH in an aquarium, and investigating the water quality of streams and lakes
Sling Psychrometer, to measure relative humidity, Includes two plastic-backed Celsius thermometers, one for dry bulb measurements and the other for wet bulb measurements, Includes an activity guide with relative humidity calculation table, Requires assembly,pack of 15
Go Direct* Force and Acceleration Sensor, couples a 3-axis accelerometer with a stable and accurate force sensor that measures forces as small as +/- 0.1 N and up to +/- 50 N, Acceleration: 3 axis, +/- 16 g, Gyroscope: 3 axis, 2000 deg /s
Go Direct* Optical Dissolved Oxygen Probe, with Micro USB Cable, Range: 0 to 20 mg/L, 0 to 300%, Measure primary productivity or biological/biochemical oxygen demand, Explore the interdependence of plants and animals, Monitor watersheds over time
100mL. Polymethylpentene cylinders are autoclavable. Withstand up to 120[degree]C continuous use or 170[degree]C for short periods. Graduated in 1mL increments. ISO 6706 certification. Not resistant to strong oxidizers, some hydrocarbons, and chlorinated solvents.
Cylinder Measuring, Graduated, Material: Borosilicate glass, Class -A glass hexagonal base, with spout, Complete with protective guard, as per ASTM E1272 standard, Blue Graduation, Sub. Div. - 1.0 ml, Tolerance - ont-style, sans-serif: >+/-0.25 ml, Capacity: 50 ml