$75 - $100

K-5520D Hydrogen Peroxide HR CHEMets® Test Kit (5-50 ppm) by AquaPhoenix

The K-5520C Hydrogen Peroixde HR CHEMets® Test Kit (1000-10000 ppm) comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): HR CHEMets® Refill, Flat Comparator, 25 mL sample cup, 25 uL fixed volume pipet, pipettor tips, and instructions.

77A-RTD, Type RTD, 2-Wire Temperature Transmitter and 3-Wire RTD Connection, Temperature Range 0 - 250°F (77A-11/0000/+0250/FAH) or 0 - 500°F (77A-11/0000/+0500/FAH) by Jenco

2-wire thermo well head type 4-20 mA current loop output signal temperature transmitter for thermocouple or RTD applications, 3 user selectable temperature ranges and adjustable Zero Span with current output proportional to the display LED s brightness. Two ambient temperature ranges are available model 77 and 77A. Specify type J, K, E, T or RTD and specify temperature range.

• Fits standard thermo well heads
• 12-36 vdc powered
• 3user-select measurement ranges
• Current proportional led brightness
• Factory calibrated
• User adjustable zero/span
• 2ambient temperature ranges
• Factory custom calibration available

701KC Temperature Magnetic Back Meter, Type K by Jenco

Model 701 is a battery operated thermocouple type digital thermometer that measures approximately 3x2.25x1.13 inches (77x60x30mm). It is available in 6 different configurations of thermocouple calibration with Celsius or Fahrenheit reading.

• All solid state design
• High stability
• Wide temperature range
• cold junction compensation
• Easy to read LCD display
• One conventional 9V battery
• Long battery life
• Interchangeable TC sensor

18774 PowerTank, 12V Power Supply by Celestron

Now you can take your telescope anywhere with this portable rechargeable power supply. Whether you have a computerized telescope or operate your telescope using motors, Celestron specially designed this product with the amateur astronomer in mind -- this model is packed with useful features.

Not only useful for setting up and powering your scope, this model can also be useful as an emergency roadside accessory as it includes an emergency light, and booster terminals in place to start weak car batteries.

• 7-amp hour
• Two 12V output cigarette lighter ports
• Built-in flashlight with red filter cap
• Built-in (2) USB ports for charging portable devices
• Energy efficient LED spotlight
• Booster terminal on rear side
• Built-in Circuit Breaker for safety
• Cigarette lighter adapter included
• 110 V/220 V switchable universal AC adapter included

K-3510 Copper Test Kit: CHEMetrics 0-1 & 1-10 ppm by AquaPhoenix

CHEMetrics Copper (soluble) CHEMets Kit, Range: 0-1 & 1-10 ppm, MDL: 0.05 ppm, Method: Bathocuproine , CHEMetrics' test kits employ the bathocuproine reagent. Bathocuproine disulfonate forms an orangecolored chelate with copper. The method measures total soluble copper as ppm (mg/L) Cu. The test kits are applicable for analysis of drinking water, surface waters, groundwater, wastewater and seawater. Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, 25 mL sample cup, and instructions.

Part Number: H1016900PM1