Accurate Dissolved Oxygen Test Kit (0-1ppm) for Aquariums, Ponds & Water Quality Testing | Reliable & Easy to Use

DLC460F Digital Clamp Meter - True RMS Multifunction Leakage Current Tester for AC/DC Voltage, Resistance & Continuity - Ideal for Electricians, HVAC & Home Electrical Safety Testing

EM7000 Analog Multimeter - High Sensitivity FET Multimeter for Low Capacitance Measurement | Perfect for Electronics Testing, Circuit Repair & DIY Projects

ENC 3 Contact Measurement Attachment for SE300 Tachometer - Precision RPM Measurement Tool for Industrial Machinery & Automotive Diagnostics

Flat Surface pH Electrode - High Accuracy pH Sensor for Water Testing, Aquariums, and Laboratories | Perfect for Hydroponics, Brewing, and Scientific Research

Digital Sound Level Meter with Graphic Display - Accurate Noise Decibel Reader for Home, Office, and Industrial Use

Handheld Digital Refractometer for Sugar Content Measurement 0-55% Brix - Perfect for Honey, Maple Syrup, Wine & Juice Testing

Hardwired CO2, Humidity & Temperature IAQ Monitor with Dual Power Input - Indoor Air Quality Sensor for Home, Office & Greenhouse Monitoring

HFE 6T Adapter - High Performance HFE Connector for Industrial Equipment & Power Tools | Perfect for Electrical Wiring, Machinery Maintenance & DIY Projects

7.5L High Capacity Ultrasonic Cleaner with Heater & Degas Function - Professional Jewelry, Dental Tools, and Eyeglass Cleaning Solution

Non-Contact Infrared Thermometer Pen with Laser Pointer - Accurate Digital Temperature Gun for Cooking, HVAC, Industrial & Home Use

USB 2.0 to Optical Link Cable - High-Speed PC Connection for Data Transfer | Perfect for Gaming, Audio/Video Editing & Long-Distance Device Connectivity

KB USB7 | High-Speed USB 2.0 to Optical Link Cable for PC Connection | Perfect for Gaming, Streaming & Data Transfer

Professional LED Light Meter with Color Temperature Compensation - Accurate Lux Measurement for Photography, Film, and Indoor Lighting Setup

Multifunctional Moisture Meter Replacement Pins - 2 Pack | High Precision Wood & Soil Testing Probes | Perfect for Gardening, Construction & DIY Projects

NIST Traceable 12-Channel Thermocouple Thermometer with Calibration Certificate | Professional Multi-Point Temperature Measurement for HVAC, Food Safety & Industrial Applications

HG60 Series Digital Gloss Meter - 60° Angle Precision Gloss Measurement for Paint, Plastic, Metal & Automotive Finishes | Professional Surface Glossiness Tester for Quality Control & Industrial Use

NIST Traceable Digital Sound Level Meter with Calibration Certificate - Professional Decibel Meter for Noise Measurement in Factories, Schools, and Workplaces

NIST Traceable Laser Power Meter Calibration Certificate - Accurate Measurement for Industrial & Scientific Use (Requires Meter Purchase)

NIST Traceable Certificate of Calibration Thermometers - High Precision Digital Thermometer for Lab, Food, and Industrial Use (Requires New Thermometer Purchase) - Ideal for Cooking, HVAC, and Scientific Research

NIST Traceable Temperature & Humidity Meters with Certificate of Compliance - High Accuracy Digital Thermometer Hygrometer for Lab, HVAC, Food Storage & Industrial Use

NR110 Precision Colorimeter - Professional Digital Color Measurement Tool for Photography, Printing, and Design | Accurate RGB, CMYK, and LAB Color Analysis for Artists, Photographers, and Graphic Designers

NR145 High-Precision Digital Colorimeter - Accurate Color Measurement for Paint, Textile, and Printing Industries | Ideal for Lab, Factory, and Quality Control Use

Low Range COD Vials - US EPA Accepted Water Testing Kit for Wastewater & Environmental Analysis - Perfect for Laboratories, Industrial Plants, and Environmental Monitoring

Digital pH Meter for Water, Soil, and Aquariums - High Precision Acid/Alkaline Tester for Home, Lab, and Hydroponics | Perfect for Pool Maintenance, Brewing, and Gardening

Mini Sound Meter - Digital Decibel Noise Level Tester with LCD Display - Perfect for Home, Office, Classroom & Industrial Noise Monitoring

Digital Turbidity Meter - Portable Water Clarity Tester for Aquariums, Pools & Drinking Water | Accurate NTU Measurement for Lab & Field Use

Professional Digital Dissolved Oxygen Meter for Water Testing - Portable DO Meter with Temperature Compensation | Perfect for Aquariums, Hydroponics, Wastewater Treatment & Laboratory Use

Digital Moisture Meter with Psychrometer - 3-in-1 Humidity/Temperature/Dew Point Tester for Wood, Concrete, Walls - Perfect for Home Inspection, HVAC, and Construction Projects

PC700 Digital Multimeter with Dual Display & PC Connectivity - 0.06% High Accuracy for Electronics Testing, DIY Projects & Professional Electrical Work

pH 10 Buffer Solution 3-Pack - Laboratory Grade Calibration Fluid for pH Meters & Water Testing | Ideal for Scientific Research, Aquariums & Pool Maintenance

NHG60 Series Digital Gloss Meter - 60° Angle Precision Gloss Tester for Paint, Plastic, Metal & Automotive Surfaces - Perfect for Quality Control, Manufacturing & Lab Testing

High Accuracy 145 psi Pressure Transducer - Industrial & Automotive Use for Hydraulic Systems, HVAC, and Process Control

High-Precision Online Inductive Acid Alkaline Concentration Sensor - pH Level Detector for Water Treatment, Chemical Processing & Laboratory Use

High-Precision Industrial Conductivity Electrode for Water Quality Testing | Online Monitoring & Lab Use | Ideal for Wastewater Treatment, Boiler Systems & Chemical Analysis

PDR4000 Portable Digital Earth Resistance Tester - Accurate Ground Resistance Measurement for Electrical Safety Testing in Industrial and Home Use