CASE
The entire case assembly is of Type 304 Stainless Steel. To insure a moisture proof unit, the heavy glass face is securely gasketed with the case and bezel assembly, hermetically sealed.

STEM ASSEMBLY
The stem and fixed thread connection is fabricated of stainless steel. All welded construction insures complete corrosion resistance. Series BM, RBM and VBM stem diameter is 1/4" and for 2" dials the fixed thread is 1/4" NPT, 3" & 5" dials are 1/2" NPT.

BIMETALLIC ELEMENT
The sensitive, precision formed bimetallic element is accurately calibrated to meet certified temperature standards. The Helix assembly is silicone damped against Vibration. Silicone fluid increases the speed of responses due to more rapid heat transfer from stem to bimetallic element.

DIAL
Heavy gauge aluminum with hard surface white matte finish to reduce glare. Black graduation lines and numerals.

ACCURACY
Accurate within 1% of scale range.