Labfacility Pt100 Sensor Self-Adhesive Patches – Labfacility XE-3661-001, This thin film Pt100 type Platinum Resistance Thermometer (PRT) is encapsulated in a silicone rubber patch that has self-adhesive aluminium foil backing. The PRT has a temperature range of -50°C to +150°C. Labfacility XE-3661-001 5 Metre Self Adhesive Silicone Rubber Patch PT100 Sensor