Grounded thermocouple thermistor . The K thermocouple temperature sensor is waterproof . This is a water tight sensor probeThe K type temperature sensor probe temperature range is 0~500℃ ( 932 Fahrenheit ) . Accuracy : 0.2 .This K temperature sensor is rustproof , it is made from stainless steel . Water proof Insulation LeadCable : The wire of this K sensor is compesation wire with shield feature . Length of the line is 2m (79inch) . Cable: 78.7 inch ( 2m ) metal braided line . The wire is made of shielded glass fiber wire ,thr wire can withstand 600℃ high temperature . It is compesation wire with shield feature . Much better than Teflon .This K thermocouple can be used with Inkbird MYPIN universal input PID temperature controller . Tips: Please don't use the thermocouple under high pressure ! Features: Element:K Type Thermocouple Temperature rang: 0~500℃ Thread NPT 1/4" inches Material: stainless steel 304 Protection tube length:50mm/1.97", diameter:5mm/0.197inch , Waterproof Wire/cable Length: 2m/78.7 inch , Shield Accuracy: A grade 100% brand new and high quality. Terminal contact: 2-wire How to use : Connect the red fork to the + positive pole , and the blue ones are for "-" negative pole Package inclued: 1 x K Type Thermocouple