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4-20mA Loop Current Simulator/ Generator with LCD Display $ 145.00 145.0 USD	22mm Rotary Potentiometer 10k $ 29.99 29.990000000000002 USD	3.5mm (1/8") Mono Plug to 3.5mm (1/8") Stereo Jack Adapter - Gold Plated $ 1.99 1.99 USD	Power Resistor Kit - 10W (25 pack) $ 6.95 6.95 USD
Thermocouple Type-K - Stainless Steel $ 6.95 6.95 USD	SparkFun ESP32 Thing $ 23.95 23.95 USD	Electret Microphone $ 1.69 1.69 USD	Battery Holder for 4 x AA-Cell (with USB Connector) + Switch $ 6.95 6.95 USD
USB to RS232 Converter - 6ft $ 18.95 18.95 USD	Compact Charger with Micro-USB 5 Pin Connector 5 V - 2 A MAX. - Black $ 8.99 8.99 USD	Waterproof RTD PT100 temperature sensor with 6 x40mm stainless probe and 3 wire 3 meter cable $ 19.95 19.95 USD	USB 300 second sound module $ 4.95 4.95 USD
Skinny LED RGB Strip - Addressable, 1m, 144 LEDs (SK6812) $ 24.95 24.95 USD	N323-RHT-485 Temperature & RH Controller w/ RS-485, 240 VAC $ 209.00 209.0 USD	Screw Terminal Block 2.54mm Pitch (3-Pin) $ 1.25 1.25 USD	4x AA Battery Holder with Snaps Terminals $ 3.15 3.15 USD
Battery Holder 3-AAA Wires with Cover and Switch 26 AWG $ 1.95 1.95 USD	2x D Battery Holder with 6" Wires $ 1.95 1.95 USD	Soldering Tip - Weller - Conical (ETT) $ 5.95 5.95 USD	6x AA Battery Holder with 6 Inch Wires $ 2.95 2.95 USD