Colorimeter Handheld, DR 900 Multiparameter, HACH tests, Display:Graphical display 240 x 160 pixels, 231 mm x 96 mm x 48 mm, wavelength range- 420 nm, 520 nm, 560 nm, 610 nm
Comprehensive Basic Electricity Kit, Enables The Teaching Of Various Topics Related To Electricity, Flexible Alternative To A Circuit Board, Great For Grade 6, Included Trays Keep The Units Organized, Components Mounted On Tough, Yellow Plastic Bases
Dry Field Mapping Kit, includes cork-covered base, 30cmx26cm; pad of 25 sheets pre-printed conductive paper 28cmx21.5cm; pad of 100 sheets preprinted paper for drawing fields; ten metal-headed push pins; a silver conductive pen