Infrarood richtlaser IT81 Infrarood thermometer IT83 Infrarood thermometer IT73 Infrarood thermometer laser -10/510 IT75 Infrarood thermometer laser -18/510 BF10 Infrarood thermometer IT77 Infrarood thermometer laser -18/1000 IT76 Infrarood thermometer laser -50/510 IT79 Infrarood thermometer -20/420°C