Laboratory Grade Acetone, 500mL Subject_Biology Tensiometer-based soil moisture data-logging sensor

Tensiometer-based soil moisture data-logging sensor reading 0 to 50 cBar by detecting vacuum in a water-filled ceramic tip

this electromagnet-driven pivoted-arm sounder on a wooden base produces the snap of early telegraph operation when current pulses the coil

and redistribution during cell division for biology instruction

Compact all-metal boss head with two stainless steel thumb screws joins rods up to 15mm orthogonally

Laboratory Grade Acetone, 500mL Subject_Biology Tensiometer-based soil moisture data-logging sensorSmaller 500mL laboratory grade acetone bottle, the half size variant of the 1L workhorse solvent bottle for classrooms with lower throughput or limited solvent storage capacity.