Humidity Temperature Meter (Hygrometer)

Circuit-Zone.com - Electronic Projects

Posted on Wednesday, August 3, 2011 • Category: Test and Measurement

Here's hygrometer thermometer that simultaneously monitors both humidity and temperature on large LCD display which can be read from across the room. It's great for labs, chemical storage areas, clean rooms, stock rooms, warehouses, factories, greenhouses, and outdoors. Monitor humidity and temperature in your room, kitchen, desiccators, incubators, refrigerators, and fume hoods. Comes with AG13/LR44 battery. Temperature range -10 C to 50 C (14 F to 122 F). Humidity range 20% RH to 95% RH.

Zener Diode Meter 1V to 50V

Simple EMF Probe

USB Voltmeter

ICL7107 / ICL7106 - Digital Voltmeter

70V PIC Voltmeter Amperemeter

PIC Dual Temperature Meter

Capacitance Meter

Curious C-Beeper

Adjustable Constant Current Load

LM386 Audio Probe Amplifier

Humidity Temperature Meter (Hygrometer)

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]