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EQUIPMENT & SUPPLIESPump, Vacuum, Two-StageQuiet, dependable two-stage vacuum pump produces high-quality vacuum for low-pres-sure experiments like boiling water at room temperature. Rotary sliding vane produces a free air capacity of 85 liters per minute. Includes direct drive, oil trap, 3360 rpm pump speed, ½-hp 110-V 60-Hz motor, 300 mL oil capac-ity and intake ports for ¼” or ½” i.d. tubing. Dimensions are 11” H x 14” L x 5¼” W. AP1597 I $785.00Multimeter, StudentThis economically priced, compact all-purpose multimeter is perfect for the rigors of student classroom use. Comes complete with battery and test leads. Features high-contrast LCD screen, fuse-protected DC current up to 200 mA, voltage up to 750 V AC/1000 V DC, over-load protection up to 500 V and a 100-hour battery life.AP4639 I $38.50Triple Beam BalanceTop-quality high school balance. Includes a large 15-cm diameter stainless steel pan and a balance mechanism that is magnet-ically damped to allow quick readings. An attachment weight set may be purchased separately to expand the capacity of this balance from 610 g to 2610 g. Five-year warranty. Sensitivity: 0.1 gOB1040 I $145.00Economy Force TableMake multiple trials of force/vector problems easy. Hang the force lines over the table edge, establish a mechanical equilibrium in the center, and read the force angles and masses to mathematically verifiy equilibrium. Reverse the process during lab practical exams. Includes top markings in 1º increments, three adjustable legs, plastic ring, four weight hang-ers with glass guides, center post pin, cord, 20 equal masses and detailed instructions.AP4612 I $139.90MultimeterProtective rubber casing and foldout stand provide a safe and easy-to-use multimeter with an easy-to-read 3¾”-digit LCD display with auto and manual digital range selection. All-purpose multimeter comes complete with safety test leads and thermocouple temperature probe. AC/DC up to 600 volts, AC/DC current up to 10 amps, resistance up to 40 megohms, capacitance up to 100 µF, temperature range from –58 to 752 ºF.AP9000 I $68.20