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Ashcroft 5 inch dial thermometer stainless steel case glass lens 6 inch stem

Ashcroft

Ashcroft 50EI60R Dial Thermometer 5 in -20 to 120 F -30 to 50 C 6 in stem 304 SS

SKU CH-4ZHX-CTT46

Bi-metallic dial thermometer with a five-inch face reading -20 to 120 °F and -30 to 50 °C, six-inch 304 stainless-steel stem, half-inch NPT back connection, glass lens.

  • Product typeEnvironmental & Mechanical
  • Dual-scale readability from -20 °F to 120 °F
  • Celsius range of -30 °C to 50 °C for metric workflows
  • 6-inch stem reaches deep vessels and ducts
  • 5-inch glass-faced dial gives clear distance viewing
  • 304 stainless steel housing resists corrosion in harsh environments

Dial thermometer for industrial environments

The Ashcroft 50EI60R is a bi-metallic dial thermometer built for environmental and mechanical monitoring. A five-inch dial shows dual-scale readings from -20 to 120 degrees F and -30 to 50 degrees C. The six-inch stem mounts via a 1/2 inch NPT rear connection, and the 304 stainless steel housing suits process and facility applications.

Thermals and power in normal use

The bi-metallic sensing element operates without external power, so there is no electrical draw or self-heating to affect the measurement. A glass lens protects the dial face from condensation and incidental contact in humid or wash-down areas. The all-metal construction tolerates the full stated temperature span without drift from ambient heat sources.

Bundled certificate and material impact

The unit ships without a NIST-traceable calibration certificate, so users requiring documented accuracy must arrange certification separately. The 304 stainless steel housing and stem resist corrosion in water, steam and mild chemical service, extending service life compared with plated brass alternatives. The rear-mounted connection simplifies panel or pipe installation where front access is limited.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $57.99
Typical for this category: the median of 3,030 items is $54.99.

Specifications

Product
Brand nameASHCROFT
Product typeEnvironmental & Mechanical

Questions about this item

How do I install the 1/2 in NPT back connection on the 5 in dial thermometer?

Thread the 1/2 in NPT back fitting into the matching port using a wrench on the stainless steel hex. The step people get wrong is over-tightening, which can crack the glass lens or strip the threads.

What maintenance will the bi-metallic 6 in stem need over time?

Check calibration annually against a known reference. The 304 stainless steel stem resists corrosion, but if the pointer drifts beyond the -20 to 120 F range, the unit cannot be field-adjusted and must be replaced.

At what temperature does the glass lens reach its limit during sustained use?

Continuous exposure at the top of the 120 F scale can stress the glass-to-metal seal. The bi-metallic coil remains accurate to 120 F, but the lens seal is the first component to show fatigue near that limit.

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