AZ Instrument 8689 Detachable Digital pH Pen - IP65 Waterproof

The AZ Instrument 8689 is a high-accuracy, cost-effective digital pH pen designed to provide meticulous diagnostics with a high resolution of 0.01 pH. Featuring a rugged IP65-rated waterproof housing and a unique detachable electrode system, this instrument is the definitive professional standard for specialists seeking durability and low maintenance costs. When the sensor reaches the end of its lifespan, users can simply replace the pH probe (VZ86P8AZ) rather than purchasing a new unit, ensuring long-term operational efficiency.

Equipped with a large dual-display LCD, the 8689 reports pH and temperature simultaneously. The instrument supports one-touch automatic calibration for up to 3 points and includes automatic buffer recognition to prevent operational errors. With Automatic Temperature Compensation (ATC), an electrode health indicator, and a measurement stability icon, the AZ Instrument 8689 combines the precision of laboratory instrumentation with the portability required for aquaculture, pool maintenance, and industrial water profiling.

Technical Specifications:

• Brand / Model: AZ Instrument 8689

• pH Range: 0.00 to 14.00 pH

• Accuracy: ±0.05 / Resolution: 0.01

• Temperature Range: 0.0 to 50.0°C (Accuracy: ±0.5°C)

• Temperature Compensation: Automatic (ATC)

• Protection Class: IP65 Waterproof

• Calibration: One-touch automatic up to 3 points

• Electrode Type: Detachable and replaceable pH sensor (VZ86P8AZ)

• Display Features: Dual LCD with pH/Temp, stability and health icons

• Power Supply: 4 x LR44 Batteries

• Dimensions / Weight: 176(L) * 39(W) * 39(H) mm / ~110g