The PB-5015 is an encapsulated probe which monitors Temperatures from -40 to +105°C (-40 to +221°F) . Small, flexible and waterproof, it may be used in a wide variety of applications including fridge and air temperature monitoring. Cable Length Options: 1.5 meter (4.9 ft.), 3.0 meter (9.8 ft.), and 10.0 meter (32.8 ft.)