iRay USA VISTA-H35R: model Vista H35R - Thermal Sensor 640512 & 12um - NETDmK ?15 - Frame RateHz 60 - Objective Lensmm 35 F0.9 - Field of view(HV/m@100m 12.510.0 /2218 - Magnification 3~28 - Detective rangem Target size:1.7m0.5mP(n)=99%) 1800 - Exit reliefmm 25 - Exit pupil diametermm 8 - DiopterD -4~+6 - Type 1.03inch Oled - Resolution 2560x2560 - Battery Type 4400mAh Battery pack - Max.operation time(t=22)h 5.5 - Safety Class for Laser Class 1 - Max.Rangerfinder distancem 1200 - MIC Yes - Memory capacityGB 64 - IP rating IP67 - Operating temperature -20 ~ +50 - Weightg(with battery) 640 - Dimensionmm 1906779