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    • Top Sellers

    Extech EA31 Easy view Light Meter $149.99 B00023RXFU
    General Tools UV513AB Digital UVA/UVB Meter, 280-400 nm $110.20 B002JOR0JO
    Portacool FLOATSWITCH-KIT Pump Shutoff Switch for Jetstream 1600, Jetstream 2400 Portable Evaporative Coolers $99.99 B003YFHUWE
    Hanna Instruments Sulfate, 0 to 150 mg/L, Turbidimetric Method (100 Tests) $48.75 B005FH36BS
    Milwaukee MW500 LED Economy Portable ORP Meter with Platinum Electrode, +/-1000mV, 1mV Resolution, +/-5mV Accuracy $146.50 B007Z4JDUW
    AEMC CA811 MAX Function Lightmeter, 20,000 lux Range, 0.01 lux Resolution, +/-3% Accuracy $119.00 B008S0AGRG
    REED Instruments LM-81LX Compact Light Meter, 20,000 Lux / 2,000 Foot Candles (Fc) $89.00 B008S0OAP0
    UVP 95-0018-02 Model UVL-21 Compact 4 Watt UV Lamp, 365nm Wavelength, 115V $145.00 B00CYR8PRM
    UVP 95-0010-02 Model UVG-47 Portable UV Lamp, 254/365nm Wavelength, 115V $345.00 B00CYR9G3O
    Milwaukee Instruments MA887-BOX Digital Refractometer for Seawater Measurements with Protective Padded Hardshell $131.00 B00G74QESA
    Pyle PLMT16 - Digital Handheld Photography Light Meter with - Measures Lux and Lumens (200,000 LUX MAX Range) $34.99 B010NS2CJK
    eXact iDip Photometer 486107 570 Smart Photometer $179.99 B012DFGE3Q
    eXact 486700-BT-KP Micro 20 Photometer with Smart Bluetooth Pool Kit $699.99 B0132HAMVY

    Most Gifted

    Extech EA30 Easy View Wide Range Light Meter (40 to 40,000 Foot Candles) $189.99 B00023RXF0
    General Tools UV513AB Digital UVA/UVB Meter, 280-400 nm $110.20 B002JOR0JO
    Hanna Instruments HI96751C Sulfate Portable Photometer with Carrying Case, 7-19/32 Length x 4-3/32 Width x 2-11/16 Height, 0 to 150 mg/L, 1 mg/L Resolution, 9V $431.25 B0085WQT96
    Hanna Instruments HI96708C Cal Check Nitrite High Range Portable Photometer Kit $431.25 B0085WQVZ8
    Hanna Instruments HI96728C Nitrate Photometer Kit $345.00 B0085WQXEC
    REED Instruments LM-81LX Compact Light Meter, 20,000 Lux / 2,000 Foot Candles (Fc) $89.00 B008S0OAP0
    Milwaukee Instruments MA800 Protective Hardshell Case for Refractometer and Photometers B00ARHZUO2
    Industrial Test Systems eXact 486699 Micro 10 Photometer, 525nm Wavelength, 20mm Cell Pathlength $289.99 B00DIIYZY8
    Fluke 1000FLT Fluorescent Light Tester, Yellow $200.49 B00NBM15WQ
    Pyle PLMT16 - Digital Handheld Photography Light Meter with - Measures Lux and Lumens (200,000 LUX MAX Range) $34.99 B010NS2CJK