This new water quality monitor is professional and necessary tool for testing PH / Temperature / EC / CF / RH / TDS of your solution level. Suitable for aquarium pool, laboratory, and environment water. Features: Widely used to measure the pH / RH / Temperature / Conductivity EC / CF / TDS(PPM) of solution/water. Imported IC and high cost performance. Test temperature in ℃ / ℉(switchable unit). Easy calibration of pH and TDS with just a mini-screwdriver. Can online monitoring for a long time. Can work continuously more than 10 hours of power outage or outdoor without power after charging the battery for 3 hours. FCC certificated to offer safer and preciser measurement. Clear LCD with backlight, 3 results displayed simultaneously. Apply in water sources, aquarium, hydroponics, laboratory, spas, swimming pools and other water systems. Automatic temperature compensation. Easy to use and provides instant display of results. Specifications: Range: pH: 0.00 ～ 14.00pH RH: 10%RH ～ 99%RH Temperature: -50℃ ～ 70℃ (-58℉ ～ 158℉) EC: 0.00 ～ 19.99EC CF: 0.0 ～ 199.9CF TDS: 10 ～ 19990ppm Resolution: pH: 0.01pH RH: 1%RH Temperature:0.1℃(0.2℉) EC: 0.01EC CF: 0.1CF TDS: 10ppm Accuracy: pH: ±0.1pH RH: 5%RH Temperature: ±1℃(±2℉) EC、CF、TDS: ±2%F.S Temperature Compensation: 0℃ ～ 50℃ (32℉ ～ 122℉) Working temperature: 0℃ ～ 50℃ (32℉ ～ 122℉) Power supply: DC 6V (Power Adapter Usable) Battery: 2 * NI-MH 4.8V Battery （Included） Color: Black Material: ABS Plug Type: EU / US (Optional) Input Voltage: 100～240V Item Size: 152 * 80 * 26mm / 6.0 * 3.1 * 1.0in (Excluding Conductivity Probe) Item Weight: 229g / 8.1oz (6 in 1 Meter Body) Package Size: 23.5 * 16 * 6cm / 9.3 * 6.3 * 2.4in Package Weight: 624.3g / 22.0oz Note: Please read the Users Manual before use. ​The EU plug of this product can only be used in European countries. Adapter is not allowed for this product. Package List: 1 * 6 in 1 Water Quality Monitor with Conductivity Electrode 1 * User Manual 1 * pH Electrode 1 * Temperature Electrode 1 * AC-DC Adapter 2 * Suction Cups 1 * Bracket 1 * Mini Screwdriver