Fast shipping, good thermometers, I tested by cupping my hand around one and the temperature does gradually go up, as it is in liquid it takes time to adjust but seems to work, recommended
normal readings around 20 degrees C goes up a bit when held in hand which should get to around 33 but does not, I put one in fridge for 24 hours where it should read about 4 degrees instead only 15 degrees, I also placed a second thermometer in the freezer for 24 hours which should read at least - 20 degrees but instead only a reading of - 10 degrees C so they do work slightly but very inaccurate compared to digital or glass mercury or alcohol thermometer.
Every second show bad temperature :-(