6. Digital Manometers 6. Daho Products, Digital Indicators Digital manometers [63mm] ODi-3G_63mm, class 1.0% Digital manometers [80mm] ODi-4G_80mm, class 0.4% ODi-4H_80mm, class 0.2% Digital manometers [100mm] ODi-5G_100mm, class 0.4% ODi-5H_100mm, class 0.2% ODi-5P_100mm, class 0.1% ODi-5HP_100mm, class 0.05%