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GTBL NF-8506 Network Cable Tester Supports Test/IP Scan/Network Port Speed Multifunction Cable Tracker Finding Tool
Aliexpress UK
The LIVAIA Pool Water Tester Kit includes 20 tablets specifically designed for testing the pH and chlorine levels of swimming pools and hot tubs. The tablets provide accurate measurements to help maintain clean and safe water conditions. Suitable for both hot tubs and swimming pools, this testing kit is a convenient and essential tool for ensuring water quality in outdoor leisure facilities.
eBay
Live Fiber Identifier Komshine FI-20V 2-in-1 Optical Tester with 10mW VFL and KPN-35 PON Power Meter for 1310/1490/1550nm
Aliexpress UK
An electro-tester for testing pH and chlorine (Cl2) levels in water for routine monitoring of pH and chlorine levels of swimming pools, spas and different water sources. PH CL2 Chlorine Tester. 1 x pH and Cl2 Tester with Probe.
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Multifunctional Fiber Optic Tester Optical Fiber Power Meter White for Communication Engineering
Aliexpress UK
Easy to test: Free Chlorine/Bromine ,pH,Total Alkalinity. Test range for total alkalinity:0 ~ 240 ppm. Water test in swimming pool or spa pool. Total chlorine test range:0 ~ 10 ppm. Free chlorine test range:0 ~ 10ppm.
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3 in 1 Mini Optical Power Meter (OPM) & Rj45 Network Tester & LED Light AUA-MC5/MC7/M5/M7 FTTH Fiber Optic Cable Testing Tool
Aliexpress UK
New chlorine and ph test kit as photos show, I have never used it, only opened. Should work fine still.
eBay
AUA-G710A/G510A FTTH Optical Power Meter with LED Lighting -70~+10dBm/-50~+26dBm Fiber Optic Cable Tester with SC、FC Connector
Aliexpress UK
Type: PH and Cl2 tester. 1PC x PH and Cl2 tester. It used for water quality testing in swimming pools or spa pools. Quickly test PH, organic pollution and harmful substancesin water. Main Unit Size: Approx.
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COMPTYCO FTTH Fiber Optic Cable Tester Pen 1/10/20/30/50mw Visual Fault Locator SC/FC/ST 2.5mm Interface VFL 5-50Km Range
Aliexpress UK
Easy to test: Free Chlorine/Bromine ,pH,Total Alkalinity. Test range for total alkalinity: 0 ~ 240 ppm. 5.8GHz Wireless Android Auto Adapter Carplay Adapter USB Car Dongle Connect Box. 2 in 1 Wireless Android Auto Adapter Carplay Adapter USB Car Dongle Connect Box.
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NOYAFA NF-918S Cable Tracker LCD Display Optical Fiber Tester Optical Power Meter Portable Visual Fault Locator Network Tools
Aliexpress UK
The convenient water tester can quickly and easily show you the current PH value and chlorine content of your pool. You save complicated water test systems with color combinations.It is easy to use, no more chemicals.
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NOYAFA NF-8509 two-in-one Multimeter Tester Network Line Cable Finder for POE Test NCV AC DC LCD Wire Tracke
Aliexpress UK