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WST491 LCD Digital Temperature Thermometer with Remote Probe

The WST491 is a battery-powered digital temperature thermometer with 0.1°C LCD resolution, Class 1.0/0.5 accuracy, and IP54 stainless steel construction for convenient, reliable industrial temperature monitoring.
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LCD Digital Temperature Thermometer with Remote Probe

Clear LCD Display for Faster Inspection

WEST-491 is a digital thermometer designed around “Clear LCD Display for Faster Inspection.” The LCD provides a direct temperature reading at the measurement point, making routine inspection and operating checks more intuitive. The local display reduces the need to estimate values from a conventional dial and makes the current temperature easier to verify during field operation.

WST491 digital thermometer with clear LCD for direct on-site temperature reading

Flexible Design for Different Measurement Points

EST-491 supports flexible structural customization for different temperature measurement points. The standard dial diameter is 100mm and can be customized to 60mm, while the standard 10mm probe diameter can also be adapted to other sizes. Waterproof probe and threaded probe structures are available for different equipment and process interfaces.

WST491 digital temperature gauge with customizable probe and threaded connection options

Built for Industrial Temperature Monitoring

WEST-491 combines an IP55 enclosure with a stainless steel probe for industrial temperature monitoring. The thermometer supports temperature measurement within -50°C to +200°C and uses a stainless steel sensing structure for field applications. The combination helps provide practical temperature monitoring for equipment and process points requiring direct local indication.

WST491 stainless steel digital thermometer for industrial temperature monitoring

Working Principle Diagram

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Technical Specifications

Temperature Sensor Core:High-precision NTC thermistors, linearly calibrated

Accuracy Class:Standard Class 1.0; High-precision custom Class 0.5

Standard Temperature Measurement Range (Customizable):-40°C to +100°C, 0 to 150°C, 0 to 200°C

Permissible Indication Error:±1.0°C (Class 1.0); ±0.5°C (Class 0.5 high-precision model)

LCD Display Resolution:High-precision display with 0.1°C resolution; supports one-touch switching between °C and °F

Thermal Response Time :≤60 s (in flowing liquid media)

Long-Term Temperature Drift Characteristics:≤0.1°C/year; built-in temperature compensation circuit

Button Functions:ON/OFF power button, °C/°F unit switch, and one-touch zeroing and calibration

Power Supply:Built-in 3.6V lithium battery; no external 24V power supply required; battery life ≥24 months

Low Voltage Alert:Flashing battery icon on the screen alerts users to replace the battery in advance

Hose Classification:Metal bellows (oil- and high-temperature resistant); transparent PTFE tubing (food-grade, weak acid applications)

Probe Structure Classification:Threaded probe (for pipe mounting); bare tubing probe (for tanks and jackets without threaded connections)

Dimension Chart

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Phone: +86-19715617532
Add: Building 14, University Science and Technology Park, Fenghuangshan Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province

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