| Model |
Description or Specification |
 20540M |
-35/50°C Partial Immersion Lab Thermometer All-glass partial immersion engraved laboratory thermometer, -35/50°C |
 20540T |
-35/50°C Total Immersion Lab Thermometer All-glass total immersion engraved laboratory thermometer, -35/50°C |
 20542M |
-20/110°C Partial Immersion Lab Thermometer All-glass partial immersion engraved laboratory thermometer, -20/110°C |
 20542T |
-20/110°C Total Immersion Lab Thermometer All-glass total immersion engraved laboratory thermometer, -20/110°C |
 20544M |
-20/150°C Partial Immersion Lab Thermometer All-glass partial immersion engraved laboratory thermometer, -20/150°C |
 20544T |
-20/150°C Total Immersion Lab Thermometer All-glass total immersion engraved laboratory thermometer, -20/150°C |
 20568M |
-10/260°C Partial Immersion Lab Thermometer All-glass partial immersion engraved laboratory thermometer, -10/260°C |
 20568T |
-10/260°C Total Immersion Lab Thermometer All-glass total immersion engraved laboratory thermometer, -10/260°C |
 20592M |
-10/400°C Partial Immersion Lab Thermometer All-glass partial immersion engraved laboratory thermometer, -10/400°C |
 20592T |
-10/400°C Total Immersion Lab Thermometer All-glass total immersion engraved laboratory thermometer, -10/400°C |