Feature:1. 50cm Extension Cord: The temperature and humidity switch probe has a 50cm long power cord, so that your use is no longer restricted by distance.2. High Accuracy: 3%RH high accuracy error detection, bring you all the time monitoring by connecting the onoff device (not included).3. Wide Application: Suitable for plants, greenhouse soil temperature detection, fish tank pond breeding water temperature monitoring, etc.4. Powerful Function: By accurately monitoring the soil temperature or the water temperature in fish tank, your animals and plants can grow better.5. High Quality Material: The temperature controller probe is made of stainless steel, which is waterproof and moistureproof, not easy to rust, has a longer service life.Specification:Item Type: Temperature Controller ProbeMaterial: Stainless SteelWeight: Approx.30g/1.1ozHumidity Measurement Range: 0-99%RHMeasurement Error: 3%RHTemperature Probe Size: Approx. 50x6mm/1.969x0.236inProbe Power Cord Length: Approx. 50cm/19.685in.Package List:1 xTemperature Controller Probe