Analgesia Electronic Von Frey for Evaluating Mechanical Allodynia Unique - Electronic Von Frey! • Internal statistical computations allows direct reading of average value, standard deviation and variability in subject groups and up to 100 animals The new model of electronic Von Frey unit EVF4 represents an easy-to-use instrument allowing you to quickly determine the mechanical pain sensitivity threshold in rodents (both rats and mice). Basically, a tip is applied against the central edge of the animal hind paw. Paw withdrawal caused by the stimulation is registered as a response. The corresponding force applied (pain sensibility threshold) is recorded by the system and displayed on the large backlighted screen of the Von-Frey unit with a resolution of 0.1 grams. A different tip is used for rat (hard plastic tip) and mice (elastic spring tip). The electronic instrument does not present any temperature or hygrometry drift, which used to be an issue with the manual version of the filaments. Now available with embedded video! Analgesia • Electronic Von Frey for Evaluating Mechanical Allodynia key features } The threshold value can be obtained in only one test, and in a highly reproducible manner } Elimination of the problems of filament standardization } Now provided with embedded video option! } The end-point value is automatically recorded } New unit dedicated for mice! components included Specifications Measurement Range eVf3&4: 0 to 500 g, eVfm: 0 to 7 g, 120% overload allowed without causing any damage to the sensor. 0.1 g 0.2 g from 0 to 50°c average value and standard deviation are computed for all the data stored up to 100 values 110-220 Vac (other voltages on request) } Electronic Von Frey unit } 10 disposable plastic tips } 1 spring tip for thresholds between 0 and 10 grams } Footswitch to reset the display to zero } Carrying case for transport Precision: Resolution Accuracy Temperature compensation statistical functions Internal Memory Power supply Ordering Information Order # 76-0487 76-0886 76-0887 76-0488 76-0489 Model bio-eVf3-S Product electronic Von frey 0-500g complete with hard and soft tips, foot switch, casing and logger software bio-PVf enclosure for 2 rats or 4 mice for Vf stand bio-StD-eVf elevated stand with metal mesh, delivered without cage, fit up to 2 encloses bio-eVf-D Hard plastic tips, 10 units bio-eVfr-S elastic (spring) tips, 1 unit www.panlab.com • www.coulbourn.com 47