10K Ohm NTC (Negative Temperature Coefficient) thermistor. 5mm epoxy coated disc. 500mW max power rating. -20 to 125C operating temperature. CAT# TNR-103

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog r... CAT# SEN-3

The Altimeter Module is a high resolution (20 cm) altimeter sensor with SPI and I2C bus interface. The module includes a high linearity barometric pressure sensor and a high resolution temperature... CAT# PX-29124

A simple breakout board for the BMP085 high-precision, low-power barometric pressure sensor. The BMP085 measures 300 to 1100 hPa with an absolute accuracy of down to 0.03 hPa. It's based on piezo-r... CAT# SEN-94

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. Detects CO-gas concentrations anywhere from 20 to 2000ppm. This sensor has a high sensitivit... CAT# SEN-7

The Compass Module 3-Axis HMC5883L is designed for low-field magnetic sensing with a digital interface. This compact sensor fits into small projects such as UAVs and robot navigation systems. The ... CAT# PX-29133

Simple breakout board for the CAT#s SEN-3 and SEN-7 gas sensors. All you need is VCC at 5V, GND, and a resistor to an ADC, that is it. Note: This is the PCB only. 16.8mm diameter. CAT# SEN-BB

The Gyroscope Module is a low power 3-axis angular rate sensor featuring temperature data as an added bonus. Raw measured angular rate and temperature data are accessed from the selectable digital... CAT# PX-27911

Ranco # J10-6503-200. Similar to a thermostat except it responds to relative humidity rather than temperature. Consists of a humidity sensing element, adjustable setpoint cam and an electrical swit... CAT# HMC-503

This is a simple breakout board for the SHT15 humidity sensor from Sensirion. The SHT15 digital humidity and temperature sensor is fully calibrated and offers high precision and excellent long-term... CAT# SEN-15

Infrared beam emitter and detector for detecting obstructions in a power actuated door opener. Currently we have no information on operating voltages or circuitry required to operate the emitter o... CAT# UBS-1

Parallax's PING)))™ ultrasonic sensor provides a very low-cost and easy method of distance measurement. This sensor is perfect for any number of applications that require you to perform measu... CAT# PX-28015

The PIR (Passive Infra-Red) Sensor detects motion by measuring changes in the infrared (heat) levels emitted by surrounding objects. When motion is detected the PIR Sensor outputs a high signal on ... CAT# PX-28027

Sensirion digital temperature and humidity sensors. A unique capacitive sensor element is used for measuring relative humidity. Temperature is measured by a band-gap sensor. Both sensors are coupl... CAT# THS-15

Breakout board for the 3 axis ADXL335 from Analog Devices. The ADXL335 is a triple axis accelerometer with extremely low noise and power consumption - only 320uA! The sensor has a full sensing rang... CAT# ACL-69