Labasics Quantitative Filter Paper Circles, 55 mm Diameter Cellulose Filter Paper with 15 to 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 auspowers_batchone Wing on connector provides added 75 MPa 1 2 B09J8K7NHR auspowers_batchfour Style Name:OM5 LC/SC - UPC

Wing on connector provides added grip and torque

Mardatt 15Pcs M4 Star Knob Clamping Handle Nut Through Hole Set Brass Female Threaded Handle Screw On Knob Grip Black Plastic

5V AAA batteries are included in the package

Clock chip: high-precision clock chip DS3231 5

5 seconds fast response time and 11 selectable units of measurement with Max/ Min/ Average reading record function

Labasics Quantitative Filter Paper Circles, 55 mm Diameter Cellulose Filter Paper with 15 to 20 Micron Particle Retention Medium Filtration Speed, Pack of 100 auspowers_batchone Wing on connector provides added 75 MPa 1 2 B09J8K7NHR auspowers_batchfour Style Name:OM5 LC SC UPC Wing on connector provides added grip and torque Mardatt 15Pcs M4 Star Knob Clamping Handle Nut Through Hole Set Brass Female Threaded Handle Screw On Knob Grip Black Plastic