Sensor Type Digital temperature sensor Number of sensors 4 (2 long needle probes, 2 short needle probes) Measuring range -40℃~80℃ Measuring accuracy ±0.2℃ Resolution 0.01℃ Built-in wireless temperature measuring instrument, probe can be directly placed in the liquid in the test tube, through the real-time transmission of temperature and its change, to complete the temperature deviation, rise and fall rate and other parameters measurement.