Voltcraft ir500 10s and ir500 8s infrared thermometers voltcraft ir 500 8s the voltcraft ir500 8s is a non contact infrared thermometer a laser illuminates the measurement area for greater accuracy it has a high temperature alarm function and a minmax measurement display the thermometer is ideal for troubleshooting servicing and documentation in construction electrical installation heating and air conditioning supplied with a 9v battery soft pouch and a user manual voltcraft ir 500