We carry pH/ORP Storage Solution with buffer preservative (mold inhibitor) added. Each bottle contains 500 mL of pH/ORP Storage Solution. We sell this as pH Storage Solution (PH-SS). If you wish to prepare your own storage solution, you can do so...

The internal volume of the current Gas Pressure Sensor is approximately 0.8 mL. The internal volume of the older style (pre-2005) Pressure Sensor is about 1 mL, but the exact answer depends on the length of tubing connected. Here is a way to test...

By default, our force sensors show positive readings when the sensor is pulled and negative readings when the sensor is pushed. Reversing the sign of the force reading can be helpful when your experiment uses a particular coordinate system, such as i...

There are two switch settings on our Magnetic Field Sensor: Low and High. High means high sensitivity, low means less sensitive. For experiments involving household appliances, you definitely want the High setting. When opening an experiment file in ...

We sell the Turbidity Accessories Replacement Kit (TRB-ACC) that contains one empty glass turbidity bottle and one glass turbidity bottle filled with 100 NTU standard. For additional empty cuvettes, we sell a box of Turbidity Bottles (6 bottles) ...

Hold the tuning fork very close to the microphone, almost touching it. One of the best things to do to improve the signal from a tuning fork is to hold it so that the outside of the tuning fork is parallel to the face of the microphone. Many times pe...

The Dual-Range Force Sensor is the newer, better, less expensive replacement for the older Student Force Sensor. The Dual-Range Force Sensor is designed to easily connect to a ring stand or a dynamics cart. In addition, it also has a broader range of...

Nominal values for gain settings (+/- 5%) 0 - 20mV slope 150.70 x intercept 0 0 - 200mV slope 15.97 x intercept 0 0 - 1V slope 3.24 x intercept 0 -20mV to 20 mV slope 75.85 x intercept -0.024V -200mV to 200mV slope 8.48 x ...

When LP 2.0 was released, the original Respiration Monitor Belt files were changed from mmHg to kPa. The algorithm for rate calculation was not modified at the time. Any respiration wave that doesn't exceed 3 kPa is thrown out by the algorithm. The e...

Generally, rinsing the electrode with distilled water after using should suffice. If the glass bulb looks dirty, you can rinse the electrode with warm water and a mild household dish washing detergent (not Alconox detergent). If the electrode and ...