Traceable® 4198TR Digital Handheld Environmental Monitor with Stopwatch

Traceable® 4198TR Digital Handheld Environmental Monitor with Stopwatch

The Traceable® Digital Handheld Environmental Monitor provides comprehensive environmental measurements in a rugged, portable design. This multifunction instrument displays barometric pressure, altitude, temperature, compass direction, time, date, and weather trends—all simultaneously. Precalibrated to NIST‑traceable standards, it delivers reliable performance for laboratory, industrial, and outdoor applications.

Key Features

• Includes NIST-traceable certificate from A2LA accredited (1750.01) calibration laboratory
• View barometric pressure and trends in bar-graph format for the past 2 to 12 hours
• Altitude measurements from –2296 to 29,520 ft (–700 to 9000 m) with automatic Min/Max storage
• Temperature measurement updates every minute
• Stopwatch counts up or down from 1 second to 24 hours
• Time-of-day display in 12- or 24-hour format with date, month, and day of week
• Compass shows real-time direction, full-circle bearing, and north-arrow alignment
• 1-year warranty

More About This Item

Designed for portability, the environmental monitor features a compact, shock-resistant housing that fits easily into a pocket or backpack. A lanyard is included for convenient neck-wear during field use. Readings update every 15 minutes for barometric pressure, every 2 seconds for altitude, and every minute for temperature, ensuring accurate real-time monitoring.

All current measurements are displayed simultaneously, along with indicators for temperature trends, weather forecasting, and compass orientation. This makes the instrument ideal for laboratory environments, outdoor research, HVAC diagnostics, and any application requiring multi-parameter environmental assessment.

Each Traceable® instrument includes an individually numbered Traceable® Certificate verifying accuracy from our ISO/IEC 17025:2017 (1750.01) calibration laboratory, accredited by A2LA. Measurements are traceable to SI units through NIST or other recognized national measurement institutes (NMIs) that are signatories to the CIPM Mutual Recognition Agreement. This rigorous validation eliminates the need for separate calibration, saving both time and cost.

Technical Specifications

• Barometric Pressure Resolution: 0.01" Hg (1 mbar)
• Barometric Pressure Accuracy: ±0.2363" Hg (8 mbar)
• Temperature Range (Outside, °F): 14 to 140°F
• Temperature Range (Outside, °C): –10 to 60°C
• Temperature Resolution: 0.1°
• Temperature Accuracy: ±1.5°F / ±2.7°F
• Altitude Range: –2296 to 29,520 ft
• Altitude Resolution: 0.1 ft (–500 to 999.9 ft); 1 ft elsewhere
• Battery Type: 2 × CR2032 (included)
• Height: 2 3/4″ (7 cm)
• Width: 3 3/4″ (9.5 cm)
• Depth: 3/4″ (1.9 cm)
• Description: Calibrated Digital Handheld Environmental Monitor with Stopwatch
• Warranty: 1 year

Included Accessories

• Traceable® Certificate
• Lanyard
• Batteries

This Traceable® Digital Handheld Environmental Monitor is ideal for laboratories, environmental research, HVAC diagnostics, outdoor fieldwork, and any application requiring accurate, portable measurement of pressure, altitude, temperature, direction, and time.

Guaranteed to have at least one year of calibration remaining on certificate.