Steel Liquid Level Gages with Dial Thermometers are for any application requiring visual indication of both liquid level and liquid temperature.  Temperature is indicated in both degrees Fahrenheit and Celsius on the large stainless steel thermometer.  It displays 0 ° F (-20° C) to 250° F (120° C). The length between the center of the two bolts is referred to as the centerline.  Centerlines are available from 3" to 60".  
Items
B1559-20300BN1W_Dial Thermometer 3 CL .25 Male NPT

Steel Liquid Level Gage with Dial Thermometer, 3" Centerline, 1/4" Male NPT Adapters

B1559-20300BN2W_Dial Thermometer 3 CL .375 Male NPT w Adapter

Steel Liquid Level Gage with Dial Thermometer, 3" Centerline, 3/8" Male NPT Adapters

B1559-20300BN3W_Dial Thermometer 3 CL .5 Male NPT w Adapter

Steel Liquid Level Gage with Dial Thermometer, 3" Centerline, 1/2" Male NPT Adapters

B1559-20300BN4W_Dial Thermometer 3 CL .75 Male NPT w Adapter

Steel Liquid Level Gage with Dial Thermometer, 3" Centerline, 3/4" Male NPT Adapters

B1559-20400BN1W_Dial Thermometer 4 CL .25 Male NPT w Adapter

Steel Liquid Level Gage with Dial Thermometer, 4" Centerline, 1/4" Male NPT Adapters
Centerline N/A 3" N/A 3" N/A 3" N/A 3" N/A 4"
Mounting N/A 1/4" Male NPT Adapters N/A 3/8" Male NPT Adapters N/A 1/2" Male NPT Adapters N/A 3/4" Male NPT Adapters N/A 1/4" Male NPT Adapters
Feature N/A Dial Thermometer
Max Pressure N/A 125 PSI
Max Temperature N/A 225° F
Seals N/A Viton
Body Material N/A Plated Steel