HM Digital COM-300 Waterproof Combo Meter

Product Summary:
The HM Digital COM-300 is a premium waterproof handheld meter that accurately measures pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature—ideal for a wide range of industrial and laboratory applications.

Key Features:

• pH, EC, TDS, and Temperature measurement in one device

• pH range: 0 – 14 pH

• EC range: 0 – 9990 µS / 0 – 9.99 mS

• TDS range: up to 8560 ppm (0.7 scale)

• Temperature range: 0 – 55°C (32–130°F)

• Detachable platinum electrodes and pH glass sensor

• User-selectable EC-to-TDS conversion (KCl, NaCl, 442TM)

• IP-67 waterproof, floats on water

• Accurate to ±2% with high resolution readings

• Portable design with battery included

Applications:

• Water purification and filtration systems

• Hydroponics and agriculture

• Laboratories and research facilities

• Aquaculture and aquarium monitoring

• Industrial process water and cooling towers

Product Benefits:

• Combines four testing functions in one meter

• High durability and waterproof for field use

• Accurate and reliable readings for critical applications

• Easy-to-read display and simple interface

• Saves time and cost by avoiding multiple devices

FAQs:
Q1: Is the COM-300 suitable for professional lab use?
Yes, it offers high accuracy and is suitable for both laboratory and field applications.

Q2: Can I replace the probe myself?
Yes, the COM-300 features a detachable sensor that is user-replaceable.

Q3: What is the battery life of the meter?
The device operates on 2 AAA batteries (included) and offers long-lasting performance.