LC-pH-3W Keypad Benchtop Pure-Water pH Meter, -2.00-18.00 pH (CAT#: STEM-BC-3997-ZJF)

The LC-pH-3W is a keypad benchtop pH meter configured for pure-water and low-conductivity samples. It is intended for high-precision analysis in research, quality-control, biotechnology, fine-chemical, and water laboratories. The 6.5-inch LCD clearly displays measurement and setup information. A microprocessor controls calibration, data storage, temperature compensation, and other functions. The pure-water electrode configuration improves suitability for samples with low ionic strength. Digital filtering and sliding-difference technology support faster and more stable readings. The instrument recognizes fifteen buffer solutions and provides European and US, NIST, and Chinese calibration standards. Users can perform one-, two-, or three-point calibration and store up to 300 measurement records. USB export, standard Bluetooth communication, optional mobile connectivity, and IP54 protection support flexible laboratory use.

Power input: AC 220 V, 50 Hz or DC 12 V, 1000 mA
Display: 6.5-inch LCD
pH range: -2.00-18.00 pH
pH resolution: 0.01 pH
Meter pH accuracy for pure water: ±0.01 pH
Complete-system pH accuracy: ±0.02 pH
Input current: ≤2 × 10^-12 A
Input impedance: ≥1 × 10^12 Ω
ORP range: -1999-1999 mV
ORP resolution: 1 mV
ORP relative accuracy: ±0.1% FS
Temperature measurement range: -5-105°C
Operating temperature range: 0-100°C
Temperature resolution: 0.1°C
Temperature accuracy: ±0.4°C from 5-60°C and ±0.8°C outside this range
Temperature compensation: Automatic or manual
Calibration: Automatic, up to 3 points
Buffer recognition: 15 solutions
Data storage: 300 sets
USB export: Included
Bluetooth module: Standard
Protection rating: IP54
Net weight: 550 g
Product dimensions: 215 × 175 × 35 mm

Pure-water measurement configuration
High-input-impedance circuitry
Automatic temperature correction
Three calibration standards
Three-hundred-record memory
USB and Bluetooth connectivity
Digital response optimization
IP54 protective design

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