Metaval’s Bi-metallic Thermometers deliver direct, accurate temperature readings without power—ideal for industrial environments where reliability and visibility matter most. The sensing element uses dual metal coils that expand at different rates to rotate the pointer. Built for rugged duty and zero-maintenance performance, these thermometers are ideal for HVAC, pipelines, tanks, and process skids.

Power-free operation with quick, responsive readings
Easy zero correction in-field
Vibration-resistant pointer with damping options
–50 °C to +600 °C (model-dependent)
63 mm, 100 mm, 150 mm
Shatterproof acrylic / toughened glass
6 mm / 8 mm / 10 mm (others on request)
½″ NPT / BSP / custom threads
IP65 / IP67
±1% FSD (Class 1)
SS304 / SS316
SS304 / SS316
Bottom / Back / Every-Angle (Adjustable)
50 mm to 500 mm (customizable)
Please specify:
Model type (e.g., BTM – Bimetallic Thermometer)
Dial size (63 / 100 / 150 mm)
Mounting type (Bottom / Back / Adjustable)
Temperature range (e.g., 0–150 °C)
Immersion length (e.g., 150 mm)
Connection type and size (e.g., ½″ NPT M)
Material (case/stem – SS304/316)
Any optional features or certification requirements
Glycerin-filled case for vibration damping
Custom logo or tag plates
Dual scale (°C/°F) dial
Anti-glare or UV-resistant window
Electrical contact type (optional)
Thermowell (bar stock / fabricated)
Clamp-on adapter sleeves
Welded or threaded mounting bosses
Weatherproof protective cases
Power-free operation with quick, responsive readings
All-angle visibility – Available in bottom, back, and adjustable stem types
Wide operating range – Up to 600 °C depending on model
Vibration-resistant pointer with damping options
Weatherproof & corrosion-resistant cases – SS304/SS316
Calibration dial – Easy zero correction in-field
Every Metaval Bi-metallic Thermometer undergoes:
100% functional check for pointer movement and response accuracy
Calibration validation against certified master thermometer
Leak test on case sealing to ensure IP protection rating
Stem straightness and finish inspection
Optional test certificates:
Calibration Certificate (NABL-traceable)
Hydrostatic test (if integrated with thermowell)
Material Test Certificates (MTC EN 10204 3.1)
HVAC & Refrigeration Systems
Oil & Gas Pipelines
Heat Exchangers & Boilers
Chemical Reactors & Storage Tanks
Water & Wastewater Treatment
Food & Beverage Utilities
ISO 9001:2015
CE Marked
IP65 / IP67 (Ingress Protection)
RoHS compliant (lead-free design)
Get in touch with our team for additional information on product pricing, technical data, project support and more.
169-170, Badkhal Pali Road, Bhankri, Faridabad, Haryana 121004, India
+91 99589 35512
info.ind@metaval.com