Digital pH Tester 5-in-1: pH, TDS, EC, Salinity, Temperature, ATC, IP67
 
For Leaching (Washing) & Gold Mining Processing 
 
 
 
✔️ Product Guaranteed 100% New
✔️ Items are packed securely and neatly 
✔️ Each unit undergoes a Quality Control (QC) process before shipping
 
💧 5-Parameter Water Quality Tester in 1 Device
 
 
 
Measures:
 
 
 
 
pH – Acidity level
 
 
 
 
TDS – Total Dissolved Solids
 
 
 
 
EC – Electrical Conductivity
 
 
 
 
Salinity – Salt Content
 
 
 
 
Temperature – Water temperature
 
 
 
 
 
Suitable for:
 
 
 
 
Gold heap leaching processes
 
 
 
 
Leachate ponds
 
 
 
 
Mineral processing tanks
 
 
 
 
Mining laboratory
 
 
 
 
 
🎯 The Importance of pH & TDS in Gold Leaching 
 
 
 
In the cyanide-based gold leaching process, controlling pH and TDS is critical to production success and workplace safety.
 
 
 
 
 
🧪 pH – Reaction Control & Safety 
 
Ideal range for gold leaching:
 
 
 
 
Safe minimum: pH 10.0
 
 
 
 
Operating target: pH 10.5 – 11.0
 
 
 
 
Practical upper limit: ±11.5
 
 
 
 
 
If the pH drops below 10:
 
 
 
 
Cyanide can turn into a toxic gas
 
 
 
 
Gold recovery decreases
 
 
 
 
Chemical consumption increases
 
 
 
 
 
Therefore, pH must be monitored routinely throughout the leaching system.
 
 
 
 
 
💧 TDS – Solution Concentration Indicator
 
 
 
TDS indicates the amount of dissolved substances in a solution, including:
 
 
 
 
Dissolved gold complexes
 
 
 
 
Other metals (copper, iron)
 
 
 
 
Chemical residues
 
 
 
 
Dissolved minerals
 
 
 
 
 
Typical range for gold leaching:
 
 
 
 
Initial solution: ±5,000 – 20,000 ppm
 
 
 
 
Leachate: ±10,000 – 40,000+ ppm
 
 
 
 
 
Excessively high TDS can cause:
 
 
 
 
Sediment & Deposits & scale in pipes
 
 
 
 
Blockages in the irrigation system
 
 
 
 
Decreased process efficiency
 
 
 
 
 
📊 TECHNICAL SPECIFICATIONS
 
 
 
1️⃣ pH
 
 
 
 
Range: 0.01 – 14.00 pH
 
 
 
 
Resolution: 0.01 pH
 
 
 
 
Accuracy: ±0.05 pH
 
 
 
 
Calibration Points:
 
  
 
   
 
pH 4.00
 
 
   
 
pH 6.86
 
 
   
 
pH 9.18
 
 
  
 
 
 
 
 
2️⃣ TDS (Total Dissolved Solids)
 
 
 
 
Range:
 
  
 
   
 
0–1,000 ppm
 
 
   
 
1,000–10,000 ppm
 
 
   
 
10.1–200.0 ppt
 
 
  
 
 
 
 
Resolution: 1 ppm; 0.1 ppt
 
 
 
 
Accuracy: ±2% of reading
 
 
 
 
TDS Factor: 0.4 – 1.0
 
 
 
 
 
3️⃣ Salinity (Salt Content)
 
 
 
 
Range: 0.00 – 25.00%
 
 
 
 
Resolution: 0.01%
 
 
 
 
Accuracy:
 
  
 
   
 
0.01–5.00% (±0.1%)
 
 
   
 
5.10–25.00% (±1%)
 
 
  
 
 
 
 
Notes:
 
  
 
   
 
Good accuracy up to 150 ppt
 
 
   
 
Above 160 ppt, greater deviation is possible
 
 
  
 
 
 
 
 
4️⃣ EC (Electrical Conductivity)
 
 
 
 
Range:
 
  
 
   
 
0–10.00 μS
 
 
   
 
10.01–19.99 ms
 
 
   
 
20.1–400 ms
 
 
  
 
 
 
 
Resolution: 1 μS
 
 
 
 
Accuracy: ±2% of reading
 
 
 
 
 
5️⃣ Temperature
 
 
 
 
Range: 0.1 – 60.0°C (32.0 – 140°F)
 
 
 
 
Resolution: 0.1°C
 
 
 
 
Accuracy: ±0.5°C
 
 
 
 
Temperature Compensation: Automatic (ATC)
 
 
 
 
 
⚙️ Additional Features
 
 
 
 
Backlit LCD display
 
 
 
 
IP67 waterproof rating
 
 
 
 
Auto-off: 5 minutes
 
 
 
 
Power consumption: 2.9 mA
 
 
 
 
Operating environment: 0–60°C; humidity up to 100%
 
 
 
 
 
🔋 Power & Dimensions 
 
 
 
 
Batteries: 3 x LR44 (included)
 
 
 
 
Product dimensions: ±183 x 37 x 37 mm
 
 
 
 
Display size: ±33 x 24 mm
 
 
 
 
Weight: ±162 grams
 
 
 
 
 
📦 Package Contents
 
 
 
 
1 x 5-in-1 pH Meter
 
 
 
 
3 x pH Calibration Powders (4.01
 
 
 
 
3 x LR44 Batteries (installed)
 
 
 
 
1 x Instruction Manual
 
 
 
 
1 x Cardboard Box
 
 
 
 
pH & TDS Log Sheet for Watering Activities (Gold) 
 
 
 
 
 
⚠️ CAUTION
The glass probe is FRAGILE. Avoid dropping or subjecting it to hard impacts.
Shipping insurance is REQUIRED.