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G0181105-80 Digital Self Standing Depth Gauge w/ Magnetic Feet 80mm

ORP-002 Pen-type Redox Meter Digital LCD Pool Aquarium ORP Water Quality Tester with Backlight

RES-10ATC Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine

FF-180PR LUCKY Underwater Camera Fish Locator Finder 120° Wide Angle 20M Cable Length 4 IR LED 4.3" Display Video Photo Capture Rechargeable

NF-8601W Digital Cable Tester Wire Tracker RJ45 RJ11 BNC Cable Length, with FREE TF Card, Handheld Tester with 8 Remote Identifier PoE PING Data Storage Function and Port Flash

N03NF8108-M Network LAN Coaxial Wire Length Tester w/ 8 Remote Identifier

SQM-256 Soil pH, Moisture & Light Meter 3 Way Tester Kit, Gardening Acidity Probe Test Tool Plants Growth Watering Quality Monitoring Checker for Garden Farm Lawn Household Indoor Outdoor

837-3 Pentype TDS / Salinity / Temperature Tester Water Quality Meter ATC Multiple Units (ppt, ppm, S.G., %, °C, °F) Digital Tool for Saltwater Monitoring & Testing IP65 Waterproof Housing

03100 Waterproof Digital Shower Thermometer w/ Alarm Alert Hot Cold CE Approved 0 ~ 69°C

GEM-252 20x Magnification 20.5mm Jeweler Gem Loupe Triplet Lens Magnifier Jewelry Optical Glass Great Professional Hobbyist Stamp & Coin Mechanics Machinists

FFC-1108-1 Lucky Portable Fish Finder Sonar, TN/ Anti-UV LCD Display with Clear LED Backlight for Night Fishing, Wired Fishfinder with Alarm, 100M (328ft) Depth Detection, Turbid Water, Reservoir, Sea, River, lake, Boat Kayak Ice Fishing

E04-011_US Automatic Circuit Breaker Finder Tracer AC circuits / Fuses for 100-120V ONLY, LED Signal Receiver Transmitter Fuse Socket ,Plugs, Lighting, Lamp Socket & Outlet Adapters 110V

Lucky FFCW-1108-1 Wireless Fish Finder Sonar, TN/ Anti-UV LCD Display Fishfinder Backlight for Night Fishing, Turbid Water Reservoir Sea River lake Boat Kayak Ice

PHC-244 2 in 1 Digital pH & ORP Redox Controller with Separate Relays Replaceable Electrode BNC Type Probe Water Quality Monitor Tester for Aquarium Hydroponics Tank 14.00pH / 1999mV with Calibration Solution