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

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

Parafilm - Thermoplastic Self-Sealing Film, 4 Inch x 125 FT & 2 Inch x 250 FT, Superior Moisture Protection for Laboratory Tubes, Flasks & Petri Dishes

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

Digital Potentiometer - 0 to 1999mV Range, 3.5 Digit LED Display, High Input Impedance | Ideal for Chemistry Labs and Pharmaceutical Industries

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

Ocular Micrometer - Precision Made, Accurate Dimensions , Nominal Pricing

Digital Altimeter Compass - Altimeter Range: -2296ft to 29500ft | Digital Barometer, Weather Forecast, Dual Time Zone Clock

Directional Compass

Ultrasonic Distance Meter - 0.91 to 15.5 M Range, LCD Display with Backlight, Automatic Power Off, Area and Volume Calculation, Three Memory Functions, Lightweight 144.6g Design

TDS Meter - Range: 0-1990 Ppm, Resolution: 10 Ppm, Dimensions: 150x30x24 Mm | Accuracy: +/- 2%, Battery Life: 350 Hours, Temperature Compensation: 5-50°C, Portable Design