The temperature measurement is stable and repeatable. How accurate it is absolutely, I can not estimate because the IR diode does not measure where the Laserpunt is. On a meter measuring distance of the measuring point is approx 15-20cm north of the laser dot. When ausmetern a Ceranfeldes can show well the. Unfortunately you can not justuieren the laser.
The device itself must be at room temperature: when I've tried it out of the basement, it was konstat about 8-10k too little.
The device comes with bubble wrap in an envelope !!!