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hannasingapore.com

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nz.hach.com

Hach's SL250 Portable Parallel Analyzer (PPA) is an innovative multiparameter water quality meter that allows you to simultaneously perform colorimetric and probe-based measurements. The instrument and corresponding Chemkey reagents are easy to use regardless of technical expertise. Compared to traditional powder or liquid reagent methods, Chemkeys use a simplified testing method that requires no sample preparation, making the process significantly easier, faster, and safer while drastically reducing variability in results. Colorimetric tests include free chlorine, total chlorine, fluoride, high range manganese, zinc, copper, nitrite, dissolved iron, high and low range alkalinity, high and low range orthophosphate, high and low range hardness, peracetic acid, and more. Probe-based tests include pH, dissolved oxygen, conductivity, and more. *Not suitable for chloramination applications*

verniercanada.ca

Vernier provides teachers with the tools to encourage curiosity in all students – high quality science probeware, experiment software, and resources.

topinst.com

Tops Instruments Supplies Co. has been providing the highest quality range of testing instruments to a wide spectrum of Hong Kong and Macau industries. Tel : 852-3796 5085

ptallinstrument.com

จำหน่ายเครื่องมือวัดราคาไม่แพง คุณภาพดี พร้อมคำปรึกษาจากวิศกรผู้มีความเชี่ยวชาญด้านเครื่องมือวัด สนใจติดต่อ 0848744848 Email: ptinstrument@gmail.com

iorodeo.com

The Open Colorimeter is a single-wavelength photometer for measuring visible/IR light absorbance through samples in a standard 10mm pathlength cuvette.  The device uses the Adafruit TSL2591 Light Sensor and a PyBadge pre-programmed with open source CircuitPython firmware. The cuvette holder and enclosure are made from 3D-printed black resin. Links to the hardware designs and open source firmware are in the Product Guide. The Open Colorimeter ships pre-programmed & ready-to-use. No assembly, soldering or programming is required.  Product Features Single wavelength photometer with a broad range light sensor Ships with an LED of choice - select from a white LED or 10 different wavelength options from 470nm-850nm Includes a USB cable for battery-charging or power Includes a pack of 6 cuvettes: 3 macro (2.5-4.5 mL) and 3 semi-macro (1.5-3.0 mL) Includes a light-blocking cap to place over the cuvette during measurements Optional: additional LED wavelength options are available as add-on options below and the store page Documentation: Visit the Product Guide for full details. Open Colorimeter is Open Hardware certified. LED boards Single-wavelength Open Colorimeter LED boards are available so users can fully customize their instrument to a preferred wavelength. We have a range of LED wavelength options to choose from and will be adding more as we develop them. Wavelength options describe the peak or dominant wavelength as described in the LED manufacturer spec sheets. Links to LED part numbers are in the LED product page. Check out the Getting Started guide for instructions on swapping LED boards on the colorimeter.  The Open Colorimeter test and measurement equipment is for research use only.