4-in-1 BT-761 Bluetooth convenient real-time data can be transmitted, hydroponic soil cultivation, easy to use, stable and high, easy to carry without frequent adjustments. Features: Multi-function Meter with BT: mobile phone APP intelligent control, mobile phone full screen multi-parameter display, professional measurement of EC/TDS/CF and Temp. Cloud Based Data Management System: Precision real-time Bluetooth data transmission, Synchronize save time and data record, Share data or print excel tables, the mobile phone can view the calibration record. Large LCD Display Screen: With backlight screen, very easy to read; Gives the EC/CF/TDS and temp values of both. Compared to the analog screen or strips, tester makes your job easier and more convenient. Much Needed Garden Tool: The meter comes with an electrode sensing probe, which can be inserted into the soil at an appropriate depth. Suitable for all types of soil and media. This has assisted you in developing and maintaining ground planted vegetable / flowers, lawn, gardening, hydroponics. Widely Application: Digital water tester ideal for residential or commercial use, water, pool, spas, wine, beer, liquid food, laboratory, aquaculture and hydroponics. Specifications: Model: BT-761 Material: ABS Range: EC: 0-19900us/cm, 0-199.0ms/cm TDS: 0-19900ppm, 0-199.0ppt CF: 0-1990.0CF Temp: 0-50 / 32-122 Resolution: EC: 1us/cm (1999us/cm), 10us/cm (1999us/cm), 0.1ms/cm TDS: 1ppm (1999ppm), 10ppm (1999ppm), 0.1ppt CF: 1CF Temp: 0.1 / 0.2 Accuracy: EC/CF/TDS: ±2% F.S Temperature: ±1.0 Battery: 4 * 1.5V batteries (Not included) Temperature Compensation: 0~50 Operating Temperature: 0~50 Item Size: 280 * 45 * 45mm / 11.02 * 1.77 * 1.77in Item Weight: 124g / 4.37oz Package Weight: 239g / 8.43oz Package Size: 36 * 6 * 5.5cm / 14.17 * 2.36 * 2.16in Package List: 1 * Water Tester 1 * User Manual (English)