Dissolved Oxygen Meter - 0 to 20 mg/L Range 131 x 70 x 25 mm Size 0.1 mg/L ATC Resolution LCD Display Polarographic Probe with Temperature Sensor for Aquariums Medical Research Agriculture and Laboratories

Pocket Microscope - 30x Magnification Built-in Illumination and Focusing Wheel for Detail Observation

Digital Thermometer - Stainless Steel Probe 150mm Length | -50 to 300C Temperature Range Data-Hold Function Auto Shut-Off

Digital Blood Pressure Monitor - Pressure Range 0 to 280mmHg Pulse Range 40~180beat/min | Large Digital Display Accurate Measurement +/- 3mmHg

Moisture Meter - Measuring Range: Wood 5-40% Seed/Grain Up to 15% Soil 1-100% | Fast Accurate Measurement with +/- 0.5% Accuracy and 0.1% Resolution

Pulse Oximeter - 600g 23.5x16.0x7.0 cm | Bright LED Display In-built Memory Rechargeable Batteries Dual-function Charger

Tuning Fork - High-Quality Alloy | Precision Frequency Tuning from 256 to 512 Hz

Cuvette - UV Grade Quartz & Optical Glass Path-Length 1 to 100mm Volume 0.35 to 35.5ml Dimensions 45x12.5x(3.5-102.5)mm

Hand Refractometer - Brix Range 0-10% to 28-62% Measurement Range 0-32% to 0-55% | Superior Quality Raw Materials Precision Calibration

Hydrometer - 230mm Length Specific Gravity 0.980-1.120 at 20C | Temperature Correction Table Color-Coded Bands for Sweetness Levels Alcohol Calculation Instructions

Promotional Multifunctional Pedometer - Quality Checked Materials | Step Counter Calories Burnt Distance Traveled Chronograph with Lap Function Clock