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880nm IR Radial LED board880nm UV LED board for use with Open Colorimeter products. Compatible with the radial LED cuvette holder. The 880nm IR LED board has STEMMA QT for connecting to the Adafruit STEMMA QT TSL2591 High Dynamic Range Digital Light Sensor board via a 4 pin cable and JST SH connectors. PCB Features Open hardware. KiCad design files @ https: github. com iorodeo i_control_led On board voltage regulator enables operation from a 3. 3V to 5V input voltage Active

This enables simultaneous pH and temperature measurements and gives the user the the capability to compensate the pH readings for changes in temperature

LED board for surface-mount LEDs with 1414 package

278nm UV LED board with current control for use with the UV Open Colorimeter

527nm LED board for use with Open Colorimeter products

The pH electrode amplifier on this FeatherWing is based on the Microchip MCP6002 dual operational amplifier which has a low input bias current of 1pA

LED Mfr Part #: QED223A4R0

LED specifications & datasheet: 405nm UV LED

The 625nm LED board has STEMMA QT for connecting to the Adafruit STEMMA QT TSL2591 High Dynamic Range Digital Light Sensor board via a 4-pin cable and JST SH connectors

3 x M3 Brass Nuts

There are available as add-on options below or from the store page

ZP’s hyper value screen printed gold working electrode is suitable for disposable applications

Ships with an LED of choice - select from a white LED or 10 different wavelength options from 470nm-850nm

Exchange/Return Notes