Garmin E Trex H Gps Receiver - 4.4" X 2.0" X 1.2" Dimensions, Waterproof Ipx7 Rating, 17 Hour Battery Life, High-sensitivity Receiver, Tracks 10,000 Points

Countdown Timer - Premium Plastic, Maximum 99 Min 59 Sec | Foldable Stand, Magnetic Back, Battery Operated

Pocket Weighing Scale - 100-500g Capacity | Auto-Calibration, LCD Display with Blue Backlight, Overload Protection

Digital Thermometer-Hygrometer

Blood Counting Chamber - 0.10mm Depth, Two Separate Counting Chambers | Rounded Edges, Textured Handling Finish, Brightly Illuminated Neubauer Grid Lines

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

Halogen Lamp - High-Quality Raw Material, 6V-10W to 24V-250W Power Options | Excellent Durability, Exceptional Brightness

Digital Tachometer - 2.5 to 99,999 RPM Range, 0.1 RPM Resolution, 5-Digit 18mm LCD Display, Laser Detection up to 500mm, Memory for Max/Min Values

Laser Pointer - 650nm Red Laser, 5mW Power | Continuous & Blinking Modes, 3-Hour Battery Life, Portable Pocket Clip

Digital Medical Thermometer

Food Thermometer - -50C ~ +300C Range, 200mm Long Stainless Steel Probe | Waterproof, Replaceable Battery, C/F Switchable