AccuPen Price £POA Supplier/s Supplier Code 24-3000 (IAPB) Country of Origin USA Request a quote Product Description AccuPen Contact Tonometer. The AccuPen Vet features our latest One tap – One Reading Gravity Offset Technology which provides accurate IOP measurements with less calibration in any testing position. Product Features Accuracy: +/- 2mmHg (compared to goldman tonometer) Weight: 3.0 oz. Dimensions: 7 1/4" x 1 1/4" Transducer Dimensions: 1.0mm diameter Measurement Range: 5-60mmHg Power Source: 3.6 V Lithium Battery Share: