The Digital Plethysmometer is a micro-controlled volume meter, specially, designed for accurate measurement of the rat/mouse paw swelling. The digital plethysmometer is designed to provide a highly useful tool in the measurement of small volume changes. This test is typically used to evaluate the inflammatory response experimentally induced in rodents and to screen potential anti-inflammatory or anti- edema properties of pharmacological substance. The water displacement produced by the immersion of the animal paw in the measuring tube is inducing a change in Volume of water generates an output signal to the digital display indicating the volume displacement ( 0.01ml resolution ). The current value remains in the digital display until a new trail starts.

The can be zeroed between successive readings by pressing the ZERO button, so as to avoid the error arising due to adherence of water to the paw of the animal.