7-in-1 Water Quality Detection Pen – Professional & Portable Tester

Multi-Parameter Testing
Simultaneously measures pH, TDS, Temp, EC, Salinity, SG, and ORP with high precision. Ideal for aquariums, hydroponics, pools, drinking water, and laboratory use.
Premium Build & Accuracy
Features a durable ABS body, reinforced electrode probe, and auto-temperature compensation (ATC) for reliable readings. Lab-grade sensors ensure ±0.01 pH and ±2% TDS accuracy.
Instant & User-Friendly
One-touch operation with auto-calibration (pH 4.01/7.01/10.01 buffers included). Large backlit LCD displays real-time data. Compact design for fieldwork or home use.
Batch Purchase Advantage
Direct factory pricing for bulk orders. Global shipping with competitive MOQs. Stock covers all testing essentials—wholesale discounts apply.
Certified Safety
CE/RoHS compliant. IP67 waterproof casing. Includes protective cap and batteries. Trusted by water treatment professionals and eco-conscious households. *(Note: Specifications may vary by batch. Contact for OEM/ODM inquiries.)*