Potentiometer

		Analog Voltage 1.25 to 3.75V
		Three screw terminals

Light Sensor

		Analog voltage 1.25 to 3.75V from light to dark
		Three screw terminals

Temperature Sensor

		10mV per Kelvin (25C=2.93V) Accuracy +/- 1K at 25C
		Three screw terminals

Accurate Temperature Sensor Module

		Board with LCD display and temperature probe
		Presettable high and low temperature set points (requires switches)
		Output pin goes high when temp goes above or below preset
		16 solder pads. Requires 1.5V

Tilt Sensor Board

		Mercury Tilt Switch
		Three screw terminals

Reed Switch Board

		Reed switch closes if magnet is in proximity (eg if a door is closed)
		Three screw terminals

Four Switch Input Board

		Four push buttons on a board
		Six screw terminals

Mains Voltage Input Board

		Detects if a mains voltage is on or off. Opto Isolated
		Three screw terminal connections and two screw terminals for active/neutral.

Voltage Input Board

		Detects difference between two input voltages. Adjustable gain (please specify eg 0-10V)
		Three screw terminal connections and two screw terminals for input voltages

Current Input Board

		Detects current flowing in a circuit. Adjustable gain (please specify eg 0-1A)
		Three screw terminal connections and two screw terminals for circuit to test

Opto Isolated AC or DC input board

		Detects if an AC or DC voltage is present. Adjustable range up to 240V (please specify)
		Three screw terminal connections and two screw terminals for input voltage

Photo Interruptor Board

		Detects if an object passes through a 3mm slot
		Three screw terminals

Hall Effect Board

		Detects a magnetic field - 2.5V increases or decreases with a north or south pole
		Four screw terminals

Infra Red Proximity Board

		Detects objects up to 1 metre away. Voltage proportional to distance.
		Two detectors on one board
		Four screw terminals