Model 6000.2 Vario-Therm Miniature Infrared Temperature Sensor 3800ZL Low-Temperature Micro-Miniature Infrared Thermometer System 3800ZH High-Temperature Micro-Miniature Infrared Thermometer System 6000.2L Vario-Therm Low-Temperature Field Focusable Temperature Sensor with Intra-Optical Light Sighting 6000.2H Vario-Therm High-Temperature Field Focusable Temperature Sensor with Intra-Optical Light Sighting