PRTs, Thermistors, Thermocouples and Liquid in Glass Thermometers
PROBES

NEW! Secondary Standard PRT with Calibration Options
5608-9-X –200 to 500 °C 9 in x 1/8 in See 5608-09 page.
5608-12-X –200 to 500 °C 12 in x 1/8 in
5609-12-X –200 to 670 °C 12 in x 1/4 in
5609-15-X –200 to 670 °C 15 in x 1/4 in
5609-20-X –200 to 670 °C 20 in x 1/4 in
5609-300-X –200 to 670 °C 300 mm x 6 mm
5609-400-X –200 to 670 °C 400 mm x 6 mm
5609-500-X –200 to 670 °C 500 mm x 6 mm

PRTs 

     

Model 

Range 

Size 

Basic Accuracy† 

Secondary Standards PRTs 

   

5626 

–200 °C to 661 °C 

305  or 381 x 6.35 mm (12 or 15 x 0.25 in) 

±0.007 °C at 0 °C 

5628 

–200 °C to 661 °C 

305  or 381 x 6.35 mm (12 or 15 x 0.25 in) 

±0.006 °C at 0 °C 

NEW! Secondary Reference PRTs 

   
5615-6  –200 to 300 °C 4.76 mm x 152 mm (0.188 x 6.0 in)  
5615-9 –200 °C to 420 °C 4.76 mm x 229 mm (0.188 x 9.0 in)  
5615-12 –200 °C to 420 °C 6.35 mm x 305 mm (0.250 x 12.0 in)  
5616 –200 °C to 420 °C 6.35 mm x 298 mm (0.250 x 11.75 in) ± 0.010 °C at 0.010 °C
       

Precision Industrial PRTs 

   

5627A-6 

–200 °C to 300 °C 

152 x 4.7 mm (6 x 0.187 in) 

±0.05 °C at 0 °C 

5627A-9 

–200 °C to 300 °C 

229 x 4.7 mm (9 x 0.187 in) 

±0.05 °C at 0 °C 

5627A-12 

–200 °C to 420 °C 

305 x 6.35 mm (12 x 0.25 in) 

±0.05 °C at 0 °C 

Fast Response PRTs 

   

5622-05 

–200 °C to 350 °C 

100 x 0.5 mm 

±0.04 °C at 0 °C 

5622-10 

–200 °C to 350 °C 

100 x 1.0 mm 

±0.04 °C at 0 °C 

5622-16 

–200 °C to 350 °C 

200 x 1.6 mm 

±0.04 °C at 0 °C 

5622-32 

–200 °C to 350 °C 

200 x 3.2 mm 

±0.04 °C at 0 °C 

Small Diameter Industrial PRTs 

   

5618B-6 

–200 °C to 300 °C 

152 x 3.2 mm (6 x 0.125 in) 

±0.05 °C 

5618B-9 

–200 °C to 500 °C 

229 x 3.2 mm (9 x 0.125 in) 

±0.05 °C 

5618B-12 

–200 °C to 500 °C 

305 x 3.2 mm (12 x 0.125 in) 

±0.05 °C 

Special Application PRTs 

   

5623B Freezer Probe 

–100 °C to 156 °C 

152 x 6.35 mm (6 x 0.25 in) 

±0.05 °C 

5624 High Temperature PRT 

0 °C to 1000 °C 

508 x 6.35 mm (20 x 0l25 in) 

±0.055 °C 

     

Thermistors 

     

Thermistor Standards 

   

5640 

0 °C to 60 °C 

229 x 6.35 mm (9 x 0.25 in) 

±0.0015 °C 

5641 

0 °C to 60 °C 

114 x 3.2 mm (4.5 x 0.125 in) 

±0.001 °C 

5642 

0 °C to 60 °C 

229 x 3.2 mm (9 x 0.125 in) 

±0.001 °C 

5643 

0 °C to 100 °C 

114 x 3.2 mm (4.5 x 0.125 in) 

±0.0025 °C 

5644 

0 °C to 100 °C 

229 x 3.2 mm (9 x 0.125 in) 

±0.0025 °C 

Secondary Thermistor Probes 

   

5610 

0 °C to 100 °C 

152 or 229 x 3.2 mm (6 or 9 x 0.125 in) 

±0.01 °C 

5611A 

0 °C to 100 °C 

1.5 mm  (0.06 in) tip dia. 

±0.01 °C 

5611T 

0 °C to 100 °C 

28 x 3 mm (1.1 x 0.12 in) 

±0.01 °C 

5665 

0 °C to 100 °C 

76 x 3.2 mm (3 x 0.125 in) 

±0.01 °C 

     

Thermocouples 

     

Type R and S Thermocouple Standards 

   

5649/5650-20 

0 °C to 1450 °C 

508 x 6.35 mm (20 x 0.25 in) 

±0.7 °C at 1100 °C 

5649/5650-20C 

0 °C to 1450 °C 

508 x 6.35 mm (20 x 0.25 in) 

±0.7 °C at 1100 °C 

5649/5650-25 

0 °C to 1450 °C 

635 x 6.35 mm (20 x 0.25 in) 

±0.7 °C at 1100 °C 

5649/5650-25C 

0 °C to 1450 °C 

635 x 6.35 mm (20 x 0.25 in) 

±0.7 °C at 1100 °C 

     

Other 

     

Glass Thermometers 

–38 °C to 405 °C 
–36 °F to 761 °F 

381 mm (15 in) length 

0.1 °C Divisions 
0.2 °F Divisions 
†“Basic Accuracy” includes calibration uncertainty and short-term repeatability. It does not include long-term drift.