The Azel Sensor Probe is engineered to ensure long life and rapid response. It is designed to strap on a pipe or insert into a temperature well. P-01 is specially designed for use DST-777 and DST-900 series and other controls that require 10K ohm thermistors. SPECIFICATIONS: - Sheath: Copper - Lead: 10” of 20 AWG heat resistence wire - Dimension: 3/8" OD x 13/16" length (9.5mm OD x 20.6mm) - Operating range: -60 to 255°F (-50 to 125°C) - Senor: 10K ohm @ 77°F (25°C ± 1%) thermistor - Weight: 0.02lb (10g)