DSM-55H Seawater Salinity Meter, 0-55 ppt and 1.000-1.045 Specific Gravity (CAT#: STEM-BC-4004-ZJF)

The DSM-55H is a portable seawater salinity meter for marine and aquaculture applications. It measures conductivity and converts the signal into both salinity and specific-gravity values. The instrument is suitable for seawater testing, aquatic farming, food processing, environmental monitoring, and industrial water analysis. Its lightweight pen-style housing is designed for convenient on-site use. A backlit LCD displays results clearly in different lighting conditions. Platinum-plated dual semicircular sensors provide rapid response and stabilize within approximately three seconds. Automatic reading lock simplifies observation and recordkeeping. Audible prompts, flashing status icons, and automatic screen illumination indicate the progress and completion of each measurement. Low-battery notification and one-minute automatic shutdown improve operational reliability and battery efficiency.

Power supply: 1.5 V AAA battery
Display: Backlit LCD
Specific-gravity range: 1.000-1.045
Salinity range: 0-55 ppt
Specific-gravity resolution: 0.001
Salinity resolution: 0.1 ppt
Specific-gravity accuracy: ±0.003
Salinity accuracy: ±0.5 ppt from 0.1-19.9 ppt, ±1 ppt from 20-49.9 ppt, and ±3 ppt from 50-55 ppt
Temperature measurement range: 5-60°C
Temperature compensation range: 5-60°C
Temperature resolution: 0.1°C
Stabilization time: 3 s
Sensor: Platinum-plated dual semicircular electrode
Automatic shutdown: After 1 min of inactivity
Net weight: 0.0606 kg
Product dimensions: 188 × 26.5 × 26.5 mm

Dual salinity and specific-gravity display
Dedicated seawater measurement
Wide 0-55 ppt range
Three-second response time
Backlit LCD screen
Automatic result locking
Intelligent measurement alerts
Compact field-ready construction

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