Graduated Narrow Mouth Borosilicate Glass Reagent Bottle with Glass Stopper Chemical_Lithium Nitrate Chrome-plated 50mm reading magnifier with

Chrome-plated 50mm reading magnifier with a 10cm focal length in alternate-build framing

direct-reading current in the most-used range for student bench circuits

a range box

providing the higher-precision twin-track variant for EMF comparison and internal-resistance measurement by null deflection

running on a gas cartridge for laboratory

Graduated Narrow Mouth Borosilicate Glass Reagent Bottle with Glass Stopper Chemical_Lithium Nitrate Chrome-plated 50mm reading magnifier withPrinted side scale allows in bottle volume reading during dilution and stock preparation, sealed by a solid ground glass stopper for low evaporation storage.