Shift between TDS and Conductivity. Can be used in : Water purifiers and filters, food(vegetable, fruit)&drink quality monitoring, pools and spas, aquarium, hydroponic. Accuracy: ±2%. Press the switch ,place the electrode into the testsolution.
eBay
3 Modes Servo Tester Digital DC 4.8-6V Accurate PPM Consistency Measurement for RC Helicopter Airplane Steering Gear
Aliexpress UK
Size: 15.7 3 1.6cm. Test pen 1.
eBay
Water Quality Testing Pen, Electronic Water Tester With 0-9999 PPM Measurement Range For Household Drinking Aquariums
Aliexpress UK
Test pen 1. Size: 15.7 3 1.6cm. Fahrenheit: 32.0-176.0 ℉.
eBay
ORP: -2000mV ~ 2000mV. TDS:1ppm(<1999ppm) 10ppm(>1999ppm) 0.1ppt. SALT:1ppm(<1999ppm) 10ppm(>1999ppm)0.1ppt 0.01%. EC: 0-19000us/cm 0-199.0ms/cm. EC: 1us/cm(<1999us/cm) 10us/cm(>1999us/cm). Range:pH: 0.00 ~ 14.00pH.
eBay
RANGE : 0-9990 ppm. Used to test the purity of the water quality of the filter. ③ Gently stir the pen in the test solution until the reading stabilizes. The reading will be fixed on the display screen within 2 seconds.
eBay
Can\\'t find the cause of diarrhoea?. Quickly use our test pen to test the quality of the water. It can be used to test the water quality of the water purifier, to check whether the water purification effect of the water purifier has achieved the effect.
eBay
eBay
From 1,000 to 9,900 ppm, the resolution is 10 ppm. Range: 0-9990 ppm. This item can be used in water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools, spas, aquariums and hydroponics.
eBay