Ohaus Pen meter TDS, 0.0-100.0mg/L, ±1.5% FS, ATC 30073980

The Ohaus Pen meter TDS model ST20T-A (part number 30073980) is a portable device designed for measuring total dissolved solids (TDS) and temperature in water samples.

Key Features:

• Measurement range: 0.0 to 100.0 mg/L TDS, 0.0 to 99.0 °C temperature
• Accuracy: ±1.5% full scale for TDS; ±0.5 °C for temperature
• Measurement resolution: 0.1 mg/L
• Display: LCD with dual display for simultaneous TDS and temperature readings
• Automatic temperature compensation (ATC)
• Power: 4 AG13 (1.5V) batteries included
• Battery life: approximately 200 hours
• Dimensions: 1.5 in x 7.28 in x 1.77 in (38 mm x 185 mm x 45 mm)
• Net weight: 110 g (3.88 oz)
• Protection rating: IP67 waterproof
• Automatic shutdown after 6 minutes of non-use
• Number of buttons: 3
• Temperature sensor: 50 KΩ NTC
• Operating environment: 10°C to 40°C, 85% relative humidity, non-condensing
• Includes wrist strap for convenient handling

Advantages:

• Wide TDS measurement range up to 100 mg/L supports diverse water quality assessments
• High accuracy with ±1.5% FS and automatic temperature compensation ensures reliable, precise readings
• Dual LCD display enables simultaneous monitoring of TDS and temperature for efficient analysis
• Waterproof IP67 design allows use in wet or harsh field environments
• Lightweight and compact form factor (110 g) with wrist strap enhances portability and ease of use
• Long battery life of approximately 200 hours minimizes downtime during extended use
• Automatic shutdown conserves battery power when not in use