pH Meter
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| Brand | Sanxin Peri |
|---|---|
| Origin | Shanghai, China |
| Model | PHS-2C |
| Instrument Type | Benchtop (not pen-type — corrected per technical specification) |
| Parameter Types | Dual (pH + Temperature) |
| pH Measurement Range | 0.00–14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.02 pH |
| Temperature Compensation | Manual or Automatic (with optional PHT temperature electrode) |
| Calibration Buffers | pH 4.00, 6.86, and 9.18 (NIST-traceable standard solutions) |
| mV Range | −1500 to +1500 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ±0.15% FS ±1 digit |
| Temperature Measurement | 0–100 °C / 32–212 °F, resolution 0.1 °C, accuracy ±1 °C |
| Input Impedance | ≥1 × 10¹² Ω |
| Stability | ±0.01 pH / 3 h |
| Power Supply | DC 9 V adapter |
| Dimensions | 160 × 190 × 70 mm |
| Weight | 750 g |
| Operating Environment | 5–35 °C, ≤85% RH |
| Brand | SANXIN |
|---|---|
| Origin | Shanghai, China |
| Instrument Type | Portable |
| Parameter Types | pH, ORP, Conductivity, TDS, Salinity, Resistivity, Dissolved Oxygen, Temperature |
| pH Range | −2.00 to 19.999 |
| pH Resolution | 0.1 / 0.01 |
| pH Accuracy | ±0.01 |
| Conductivity Range | 0–200 mS/cm (5 segments) |
| Conductivity Accuracy | ±1.0% FS |
| DO Range | 0–40.00 mg/L, 0–199.9% saturation |
| DO Accuracy | ±0.10% FS |
| Temperature Compensation | Automatic (0–100 °C for pH |
| Calibration | Auto-recognition of 13 pH buffers (US, NIST, Chinese series) |
| Data Storage | 100–400 sets |
| Power | 2 × AA batteries (1.5 V), >100 h life |
| Dimensions (meter) | 65 × 120 × 31 mm |
| Weight (meter) | 180 g |
| Ingress Protection | IP57 |
| Certifications | ISO 9001:2000, CE, CMC |
| Brand | SANXIN |
|---|---|
| Origin | Shanghai, China |
| Model | SX711 |
| Instrument Type | Portable (not benchtop — corrected per product reality) |
| Parameter Type | Single-parameter (pH/mV) |
| pH Range | –2.00 to 19.99 pH |
| pH Resolution | 0.1 / 0.01 pH |
| pH Accuracy | ±0.01 pH |
| mV Range | ±1999 mV |
| mV Resolution | 1 mV |
| mV Accuracy | ±0.1% FS |
| Temperature Range | –10 to 110 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.5 °C |
| Input Impedance | ≥1 × 10¹² Ω |
| Input Current | ≤2 × 10⁻¹² A |
| Stability | ±0.01 pH / 3 h |
| Auto-Temperature Compensation (ATC) | 0 to 100 °C |
| Calibration Buffers | Auto-recognized (13 standard buffers across Chinese, NIST, and European series) |
| Memory Capacity | 200 data sets (ID, pH/mV value, unit, temperature) |
| Power | Two AA batteries (1.5 V × 2) |
| Dimensions (meter) | 65 × 120 × 31 mm |
| Weight (meter) | 180 g |
| IP Rating | IP57 |
| Certifications | ISO 9001:2000, CE, CMC |
| Brand | SANXIN (Sanxin Peri) |
|---|---|
| Origin | Shanghai, China |
| Model | SX811 |
| Instrument Type | Portable |
| Parameter Type | Single-Parameter (pH/mV) |
| Measurement Range | −2.00 to 19.99 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Temperature Compensation Range | 0 to 100 °C (auto/manual) |
| mV Range | −1999 to +1999 mV |
| mV Resolution | 0.1 mV (±200 mV), 1 mV (elsewhere) |
| Input Impedance | ≥1×10¹² Ω |
| Input Current | ≤1×10⁻¹² A |
| Stability | ±0.01 pH/3 h |
| Calibration | 1–3 point auto-calibration with buffer recognition (USA/NIST/CH series), custom buffer support |
| Enclosure Rating | IP57 |
| Power | Rechargeable battery or USB 5 V DC adapter |
| Data Storage | Manual & timed auto-storage |
| Default Buffers | CH-series (pH 4.00, 7.00, 10.01) |
| Brand | Sartorius |
|---|---|
| Origin | Germany |
| Model | PB-30 / PB-30L |
| Instrument Type | Portable |
| Parameter Types | Multi-parameter |
| pH Measurement Range | 0–14 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.005 pH |
| Temperature Compensation | Automatic (ATC) and Manual (MTC) |
| Calibration | Up to 3-point with auto-buffer recognition |
| Data Storage | Internal memory with electrode ID, sample ID, timestamp, and user login traceability |
| Compliance Support | GLP-compliant data logging, audit trail, password-protected access, multi-level user management (PB-30 only) |
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0563 2051 |
| Instrument Type | Portable |
| Parameter Types | pH & Temperature |
| pH Range | 0–14 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.02 pH |
| Temperature Range (NTC) | 0–60 °C (short-term up to +80 °C for ≤5 min) |
| Temperature Accuracy | ±0.4 °C |
| Temperature Resolution | 0.1 °C |
| Calibration | 1-, 2-, or 3-point with NIST-traceable buffers |
| Electrolyte | Replaceable gel electrolyte |
| Probe Tip Diameter | 11 mm |
| Probe Shaft Length | 25 mm |
| Display | Dual-line backlit LCD |
| Housing Material | ABS |
| Protection Rating | IP65 |
| Weight | 135 g |
| Dimensions (L×W×H) | 145 × 38 × 167 mm |
| Operating Temperature | 0–50 °C |
| Storage Temperature | −20–+70 °C |
| Battery | LR44 button cell (≈80 h operation) |
| Compliance | CE 2014/30/EU |
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0563 2061 |
| Instrument Type | Pen-style pH Meter |
| Parameters Measured | pH and Temperature |
| pH Range | 0–14 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.02 pH |
| Temperature Range (NTC) | 0–60 °C (short-term up to 80 °C for ≤5 min) |
| Temperature Accuracy | ±0.4 °C |
| Temperature Resolution | 0.1 °C |
| Calibration Standard | NIST-traceable buffer solutions |
| IP Rating (with TopSafe protective sleeve) | IP68 |
| Weight | 69 g |
| Dimensions (L×W×H) | 197 × 33 × 20 mm (including probe and TopSafe) |
| Display | 2-line LCD with backlight |
| Power Supply | 1 × CR2032 battery (≈80 h operating time) |
| Housing Material | ABS |
| Operating Temperature | 0–60 °C |
| Storage Temperature | −20–+70 °C |
| Compliance | CE 2014/30/EU |
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0563 2061 |
| Instrument Type | Pen-style |
| Parameter Types | Dual-parameter (pH + temperature) |
| pH Measurement Range | 0–14 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.02 pH |
| Temperature Range (NTC) | 0 to +60 °C (short-term up to +80 °C for ≤5 min) |
| Temperature Accuracy | ±0.4 °C |
| Temperature Resolution | 0.1 °C |
| Calibration Solution Standard | NIST-traceable |
| Protection Rating (with TopSafe sleeve) | IP68 |
| Weight | 69 g |
| Dimensions (L×W×H) | 197 × 33 × 20 mm (with probe and TopSafe) |
| Display | Backlit 2-line LCD |
| Battery | CR2032 (≈80 h operation) |
| Operating Temperature | 0 to +60 °C |
| Storage Temperature | −20 to +70 °C |
| Housing Material | ABS |
| Compliance | CE 2014/30/EU |
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0563 2062 |
| Instrument Type | Pen-style pH Meter |
| Parameter Types | pH + Temperature (NTC) |
| pH Range | 0–14 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.02 pH |
| Temperature Range | 0–+60 °C (short-term up to +80 °C for ≤5 min) |
| Temperature Accuracy | ±0.4 °C |
| Temperature Resolution | 0.1 °C |
| Calibration | 1-, 2-, or 3-point with NIST-traceable buffer solutions |
| Electrode Type | Integrated gel-filled pH electrode with annular transparent reference junction |
| Probe Diameter | 11 mm |
| Probe Sleeve Length | 35 mm |
| IP Rating | IP68 |
| Display | 2-line LCD |
| Power | 1 × CR2032 battery (≈80 h operation) |
| Weight | 115 g (with TopSafe protective sleeve), 65 g (without) |
| Dimensions | 197 × 33 × 20 mm (L×W×H, with probe & sleeve) |
| Housing Material | ABS |
| Operating Temperature | 0–+60 °C |
| Storage Temperature | −20–+70 °C |
| Compliance | CE 2014/30/EU |
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0563 2062 |
| Instrument Type | Pen-Style |
| Parameter Types | pH & Temperature |
| Measurement Accuracy | ±0.02 pH |
| pH Range | 0–14 pH |
| pH Resolution | 0.01 pH |
| Temperature Range (NTC) | 0–60 °C (short-term up to 80 °C, max 5 min) |
| Temp. Accuracy | ±0.4 °C |
| Temp. Resolution | 0.1 °C |
| Calibration | 1-, 2-, or 3-point with automatic buffer recognition |
| Calibration Standard | NIST-traceable buffers |
| Protection Rating | IP68 |
| Electrode Type | Integrated gel-filled ring-electrode with built-in temperature sensor |
| Probe Shaft Diameter | 11 mm |
| Sleeve Length | 35 mm |
| Weight | 115 g (with TopSafe protective sleeve), 65 g (without) |
| Dimensions | 197 × 33 × 20 mm (L×W×H, with probe & sleeve) |
| Display | 2-line LCD |
| Battery | CR2032 (≈80 h operation) |
| Housing Material | ABS |
| Operating Temperature | 0–60 °C |
| Storage Temperature | −20–+70 °C |
| CE Marked | 2014/30/EU |
| Origin | Imported |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Instrument Type | Benchtop |
| Model | inoLab pH 7310 |
| Measurement Parameters | Single (pH) |
| pH Range | –2.0 to 20.0 |
| Resolution | 0.1 / 0.01 / 0.005 pH (selectable) |
| Accuracy | ±0.005 pH (at 25 °C, calibrated with traceable buffers) |
| mV Range | ±1200.0 mV (±0.3 mV), ±2500 mV (±1 mV) |
| Temperature Range | –5.0 to +105.0 °C (±0.1 °C) |
| Calibration | Up to 5-point, DIN/NIST/WTW TEC buffer support (20 pre-programmed standards) |
| Memory Capacity | 500 manual entries / 5000 automatic logs |
| Data Output | USB 2.0 micro-B interface, CSV format |
| Compliance | GLP-compliant data logging with timestamp, operator ID, electrode serial number, and calibration history |
| Optional | Integrated thermal printer (58 mm width) |
| Brand | WTW |
|---|---|
| Model | pH 3310 |
| Type | Portable pH Meter |
| Parameters | Single-parameter (pH/mV/Temperature) |
| Measurement Range | –2.000 to 19.999 pH |
| Resolution | 0.001 pH |
| Accuracy | ±0.005 pH (at 25°C, calibrated) |
| mV Range | ±1200.0 mV (±0.3 mV), ±2500 mV (±1 mV) |
| Temperature Range | –5.0 to 105.0 °C (±0.1 °C) |
| Calibration | 1–5 point, auto-buffer recognition (DIN/NIST/WTW TEC, 16 buffers) |
| Data Storage | 5000 automatic + 200 manual entries |
| IP Rating | IP66/IP67 |
| Battery Life | Up to 1000 h (display backlight off), 150 h (backlight on) |
| Interface | Waterproof USB |
| ATC | Yes |
| CMC (Continuous Measurement Control) | Yes |
| Display | Backlit graphical LCD |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | SenTix 940 |
| Instrument Type | Portable |
| Parameter Types | Multi-parameter |
| pH Accuracy | ±0.004 |
| pH Range | 0.000–14.000 |
| Calibration Buffers | pH 4.01, 7.00, 10.01 |
| Temperature Range | 0–80 °C |
| Electrolyte | Polymer Gel (KCl-free) |
| Reference Junction | Fiber Junction (NTC integrated) |
| Housing Material | PPE/PS Composite |
| Shaft Length | 120 mm |
| Cable Length | 1.5 m (standard), 3 m (optional) |
| Connector | 4-pin IDS (Intelligent Digital Sensor) |
| Input Impedance | >1 GΩ at 25 °C |
| Response Time (t₉₀) | <15 s (in buffer) |
| Storage Requirement | Wet cap with pH 4 or 7 buffer |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST109B-HP880 |
| Measuring Range | pH 0–14 |
| Accuracy | ±0.1 pH |
| Temperature Compensation | 0–99.9 °C (25 °C reference, automatic) |
| Output Signals | 4–20 mA (2-wire), RS485 (Modbus RTU) |
| Power Supply | 24 VDC (wide-input tolerant) |
| Protection Rating | IP65 |
| Response Time | <30 s |
| Stability | ±0.02 pH/24 h |
| Brand | YST (Dalian Yist) |
|---|---|
| Origin | Liaoning, China |
| Model | YST109B-HP880 |
| pH Range | 0–14 |
| ORP Range | −2000 to +2000 mV |
| pH Accuracy | ±0.02 |
| ORP Accuracy | ±5 mV |
| Temperature Compensation | 0–99.9 °C (reference 25 °C |
| Output Signals | 4–20 mA (2-wire), RS485 (Modbus RTU) |
| Power Supply | 24 VDC (wide-range, solar-compatible) |
| Media Compatibility | Aqueous solutions, weakly corrosive liquids (pH 2–12), suspensions |
| Drift Stability | ±0.02 pH/24 h |
| Enclosure Rating | IP65 |
| Response Time | <30 s |
| ADC Resolution | 24-bit |
| Calibration Modes | Manual & Automatic (single-/two-point) |
| Data Logging | 30-day local history storage |
| Electrode Options | Glass, antimony, or refillable gel-filled pH electrodes |
| Brand | YST (Dalian Yist) |
|---|---|
| Model | YST109B-HP880 |
| Measurement Range | pH 0.00–14.00 |
| Accuracy | ±0.1 pH |
| Resolution | 0.01 pH |
| Temperature Compensation | 0–60 °C (Automatic) |
| Power Supply | DC 12 V |
| Power Consumption | ≤1 W |
| Protection Rating | IP65 |
| Operating Temperature | −10 °C to 50 °C |
| Communication Protocol | RS485 Modbus-RTU |