... angle), N-13 (135 degree angle) Round Glass Thermometer with Protective Case Description It comprises a glass insert and a protecting ... ; the accuracy is controlled in ±1 line. The testing comply with DIN16195 JJG130-2004Temperature Range: (-30-50 / 0-50 / 0 ... 150mm, 160mm, 200mm, 220mm, 250mm Diameter: 20mm, 25mmMaterial of protecting case: brass, carbon steel or stainless steel3) Feature of the stem ...