Thermometer World Nauwkeurige kamerthermometer voor gebruik als kamertemperatuurthermometermonitor in het thuiskantoor, tuin of kas gemakkelijk aan de muur gemonteerde huisthermometer binnen buiten (grijs)

I have purchased four of these over the years. I have two in the house (upstairs and downstairs), one in the shed and one outside. I think they're good value. They all have a black calibration mark on the capillary tube. If you take the thermometer apart and put the vial in cup of slushy water and measure between the calibration mark and the mercury you should get a dimension of 15mm. If you measure the celcius scale on the plastic housing it's 1.5mm/degree so you therefore know that calibration mark should sit at 10 degrees. If it doesn't, you can correct your temperature readings by observing how far above or below 10 degrees is from the calibration mark.

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utile e preciso

Got this to place in my well house when I installed my pipe warming wiring. I wanted to be sure the wire is coming on when the temperature dropped. This thermometer is exactly what I needed. Nice, no unnecessary frill and seems to do the job.Works great and will allow me to know when the wire should be on as a double-check.