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2 in 1 400mm Electronic Stainless Steel Angle Ruler Digital Protractor 360 Degree Angle Finder
$13.34-15.05
(Min. Order) 1 piece
Advanced Digital PAR Meter Light Intensity Full-Spectrum Quantum PPFD Tester Indoor Outdoor Plant Photosynthetic Activity
$57.83-64.25
(Min. Order) 5 pieces
New and Durable Digital Ultrasonic Thickness Tester with LCD Backlight Multi-mode Pulse-Echo Echo-Echo Thickness Meter
$180.72-189.87
(Min. Order) 1 piece
Digital pH Controller with Dosing Pump & Dual Relay Output Digital pH Monitor Meter Sensor with ATC Function PH Control
$157.91-175.30
(Min. Order) 1 piece
Water Quality Meters
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Water Quality Meters
Factory Direct High Quality Digital Salinity and Temperature Meter with Built-in NaCL IP65 Level Salt Monitor for Ponds Tanks
$18.90-22.90
Min. Order: 50 sets
High Quality Digital Salinity and Temperature Meter 0-70ppt with ATC Built-in NaCL IP65 Salt Level Meter Koi Ponds Tanks Ponds
$22.81-25.74
Min. Order: 1 set
High Accuracy Multi-parameter Digital PH EC CF TDS Temperature Meter Wallmount Water Tool Backlight Aquariums Pool Fish Tanks
$43.46-48.29
Min. Order: 1 piece
Top-grade Portable Pentype 3-in-1 PH Meter TDS Temperature Water Testing Tool Replaceable Electrode IP67 for Aquarium Spa Pools
$13.74-21.90
Min. Order: 1 piece
High Precision Digital Pentype PH Meter 0.00-14.00ph Range Replaceable Electrode 2-point Calibration for Pools Drinking Water
$2.55-2.82
Min. Order: 1 piece
Professional Customization 6 in 1 Multiparameters Water Tool IP57 ATC Made in Taiwan Pentype Water Quality Meter for Pool Spa
$66.90-73.90
Min. Order: 10 pieces
Pentype Digital MultiParameter Water Tool 6 in 1 Parameters IP57 ATC Selectable Unit Made in Taiwan Water Quality Meter Pool Spa
$73.17-81.08
Min. Order: 1 piece
Wholesale Nutrient Meter Dipstick 3 in 1 Waterproof Pre-Calibrated Water Testing Tool ATC High Quality CF EC PPM Stick Tester
$14.90-16.90
Min. Order: 50 pieces
High Quality 3 in 1 Nutrient Meter Dipstick Waterproof Pre-Calibrated Water Testing Tool ATC High Quality CF EC PPM Stick Tester
$16.58-18.72
Min. Order: 5 pieces
Factory Direct Water Quality Meter Rechargeable Adapter Waterproof BNC Replaceable Electrode Digital PH Monitor for Pool Spa
$20.90-23.90
Min. Order: 5 pieces
Factory Big LCD IP67 DO Meter Fluorescent Optical Probe 99 Points Logging Digital Dissolved Oxygen Aquaculture Water Treatment
$189.00-219.00
Min. Order: 10 pieces
Wholesale Filtered Unfiltered Water Monitoring 7 Bright LED IP68 Pre Calibrated Water Quality Conductivity Indicator
$51.50-64.50
Min. Order: 10 pieces
Digital Water Quality Monitor Tester with Separate Relays BNC Type Replaceable Electrode Large LCD PH and ORP Controller
$54.40-60.44
Min. Order: 5 pieces
Wholesale OEM 50 Ohm 150cm BNC Connector Cable with Calibration Powder Long PH Electrode for Sea Water and Acid Rain
$6.90-8.90
Min. Order: 500 pieces
OEM Water Quality High Quality Pentype with ATC Calibration Kit Replaceable Electrode 3 In1 Conductivity EC PH Temperature Meter
$14.90-21.90
Min. Order: 10 pieces
High Quality OEM Pentype Water Tester Dual Level LCD ATC 14.00 pH Range PH and Temperature Meter Pool Aquarium Spa Hydroponics
$8.90-13.90
Min. Order: 10 pieces
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