Easy to test: Free Chlorine/Bromine ,pH,Total Alkalinity. Total Alkalinity Test Range: 0~240ppm. Free Chlorine Test Range: 0~10ppm. 50pcs/bottlex Multifunctional 3-in-1/5-in-1/6-in-1 Swimming Pool Test Papers（decide your choice ）.
eBay
OSS U18 Voltage Current Tester Support Fast Charging Charging Current/Voltage Testing Capacity Cable Resistance Measurement Tool
Aliexpress UK
Easy to test: Free Chlorine/Bromine, pH, Total Alkalinity. Total Alkalinity Test Range: 0~240ppm. Free Chlorine Test Range: 0~10ppm. Test at both ends of pool twice a week for best results. PH Test Range: 6.8~8.4.
eBay
EVSE Tester Adapter, Voltage Tester for EV Charging Station Testing, Compatible with Testers, Multimeters, and Oscilloscopes
Aliexpress UK
Easy to test: Free Chlorine/Bromine, pH, Total Alkalinity. Total Alkalinity Test Range: 0~240ppm. Free Chlorine Test Range: 0~10ppm. -Test at both ends of pool twice a week for best results. pH Test Range: 6.8~8.4.
eBay
Non detachable brake disc thickness measuring ruler measuring tool brake pad scale pen wear testing tool inspection pen
Aliexpress UK
Help the salt chlorinator work more efficiently in the appropriate salinity value. Check the salt concentration of saltwater pool & hot tub that use salt chlorine generator. Test the pH level of pool- pH: 0.00-14.00.
eBay
58CM Metal Alligator Clip Crocodile Electrical Clamp for Testing Probe Crocodile Test Clip to USB Adapter Multimeter Car Home
Aliexpress UK
x2 25 pots (50 in total) The ClearWater Ch0043 50 DIP Test Strips are a versatile testing kit suitable for various water types, including fresh and marine environments like swimming pools, hot tubs, ponds, and fountains. These strip kits provide precise measurements for alkalinity/KH, pH levels, chlorine levels, and bacteria levels, making them essential for maintaining water quality in outdoor water features. Perfect for monitoring water chemistry in Koi ponds and ensuring a clean and safe environment for swimmers in swimming pools.
eBay
LED LCD TV Backlight Tester LED Strips Beads Lamp Test Repair Tool Lamp Board Test Tool Capacitance Diode Voltage Testing
Aliexpress UK
Easy to test: Free Chlorine/Bromine ,pH,Total Alkalinity. Total alkalinity test range: 0~240 ppm. Total chlorine test range: 0～10 ppm. Residual chlorine test range: 0～10ppm. Test at both ends of pool twice a week for best results.
eBay
1-3set Soft Cable Wires with Alligator Clip To Banana Plug Test Cable Electrical Testing Lead Crocodile Clip Lab Multimeter
Aliexpress UK
10 x Drinking water quality test paper. 6 Pcs Can Toppers for Uk Drinks Cans Lids Sealing. Swimming Pool Water Quality Tester Professional Testing Hot Tub Strip. Ultra-thin Shoe Rack Bedroom Wall Mountable Door Hanging Storage.
eBay
High Precision Frequency Counter 10HZ-2.7GHZ with LCD Display for RF/AC/DC Signal Testing, Lab & Electronics Repair TFC2700L
Aliexpress UK
It is very suitable for use with salt chlorine generators. Are you tired of looking for various battery models after a while?. Digital screen display, 30° tilt design makes reading comfortable. IP67 waterproof design, no need to worry about water entering the tester.
eBay
I2C C10 Multifunction Waveform Ammeter for Motherboard PCB Repair Current Voltage Measurement Diode Testing Soldering Tool
Aliexpress UK