Traceable® 4154TR Thermohygrometer with Alarm; External Sensor

Traceable® 4154TR Thermohygrometer with Alarm; External Sensor

The Traceable® 4154TR Thermohygrometer provides continuous monitoring of temperature and humidity with an audible alarm that activates when readings move outside programmed limits. Its external sensor with a 7‑ft (2.1‑m) cable allows remote placement for monitoring incubators, hoods, cleanrooms, storage areas, and other critical environments.

Model & Ordering Information

• Model: 4154TR
• Item: 98766‑85
• Description: Thermohygrometer with Alarm; External Sensor

Key Features

• Audible alarm sounds when temperature or humidity exceed preset limits
• External sensor with 7‑ft (2.1‑m) cable for remote monitoring
• °C/°F selectable
• Triple‑line LCD shows current, MIN, and MAX readings
• Wall‑mount or bench‑top configuration
• Includes NIST‑traceable certificate from A2LA‑accredited (1750.01) laboratory
• 1‑year warranty

Technical Specifications

• Humidity Range: 5 to 95% RH
• Humidity Accuracy: ±3% RH (25–75% RH); otherwise ±5% RH
• Humidity Resolution: 0.1% RH
• Temperature Range: 32 to 140°F (0 to 60°C)
• Temperature Accuracy: ±0.5°C
• Temperature Resolution: 0.1°
• Probe Type: External sensor
• Alarm: Audible; four independent high/low set points
• Display: Triple‑line LCD
• Mounting: Wall mount or bench stand
• Battery: 1 × AAA (included)
• Dimensions (H × W × D): 4.25 × 2.75 × 0.75 in

Applications

• Incubators, refrigerators, and environmental chambers
• Cleanrooms and controlled‑environment labs
• Overnight and weekend monitoring of critical spaces
• General laboratory and industrial humidity/temperature tracking

Each unit includes an individually numbered NIST‑traceable certificate from an ISO/IEC 17025:2017 A2LA‑accredited calibration laboratory, ensuring measurement traceability to SI units. Traceable® instruments undergo rigorous testing to deliver reliable, accurate performance without requiring separate calibration.