Apera TDS20

Specifications
TDS	Range	0 to 100.00 ppm, 0 to 1000 ppm, 0 to 10.00 ppt
	Resolution	0.1/1 ppm; 0.01 ppt
	Accuracy	±1% F.S
	Calibration Points	Automatic 1 to 2 points
	Temperature Compensation	Auto Temperature Compensation 0 to 50°C (32 to 122°F)
Temp.	Range	0 to 50°C (32 to 122°F)
	Resolution	0.1°C
	Accuracy	±0.5°C
LCD	180° Viewing Angle LCD
Stable Reading Indication	Smiley Face Icon
Low-Battery Warning	Battery icon flashing, reminder of battery replacment
Self-Diagnosis	Yes
Heads-Up Function	No
Auto. Power-Off	Yes, auto power-off in 8 minutes without operation
Waterproof Rating	IP67; Floatable
Power	DC3V, AAA batteries x 4
Battery Life	Continuous operation up to 1000 hours
Dimensions & Weight	Tester: (40x31x178) mm / 107g With case: (190x165x40) mm / 438g
Electrode's Technical Specs.
Application	Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, waste water treatment, aquaculture, etc.
Type of Sensor	BPB (Brush-Resistant Platinum Black)
Replaceable	No
Temperature Sensor	Yes
Range	0.1 µS to 20.00 mS
Temperature Range	0 to 50°C (32 to 122°F)