"SA1100 SCANNING ANALYZER FOR LEAD TESTING; 42 X 72 MM BACKLIT GRAPHICAL LCD DISPLAY; STORES 500 PREVIOUS READINGS, OFFERS PROMPTS WHEN 40 AND 20 LEFT; WATERPROOF USB CONNECTION TO PC; POWER: 4 X 1.5 V AA ALKALINE BATTERIES, POWERED VIA USB PORT WHEN CONNECTED TO COMPUTER; INCLUDES: SA 1100 ANALYZER, CONSUMABLE PACK FOR TEN ANALYSES, SHOULDER CASE, SENSORS, BUFFER REAGENTS, AND SAMPLE VESSELS REQUIRED FOR 10 TESTS; ALSO INCLUDES TWO CHIPS: ONE TO UPLOAD CALIBRATION INFORMATION AND ONE TO VALIDATE INSTRUMENT PERFORMANCE PRIOR TO USE"