IR-Thermometer Dimensions L x W x H: 225 x 139 x 54 mm Temperature range: -35 ... +900 °C Temperature range, IR: -35...+900 °C Electrical supply: 2 x LR6/AA Emission factor: 0.1...1.1 Instrument functions: Laser Pointer Interfaces: USB Measuring error, temperature, IR: ±0.75% Optical resolution: 75:1 Sensor type/thermocouples: Infrared/K Min. spot size ?: 1 mm No. of inputs: 2