Extech products are high-quality handheld test, measurement and inspection tools. These are tools that help prevent, identify and solve problems, whether it's electrical, mechanical or maintenance. Rugged handheld testers, gauges and thermometers are put to the test every day by professionals, tradesmen and DIY enthusiasts. Extech is the pursuit of excellence in technology. Extech's multi-channel hygrometer, with easy-to-read 33mm digits, displays indoor temperature and humidity. You can connect up to 8 wireless transmitters to read temperature/humidity up to 30 meters away. The LCD display is equipped with automatic night lighting and displays icons that show the comfort of the room, as well as trend arrows that show increases, decreases or constant values. It also saves Min/Max for each measurement session. Ideal for monitoring restaurants, manufacturing plants, offices, homes, greenhouses and storage/archival buildings. Specification - Possibility to connect up to 8 radio transmitters - Integrated ice indicator - Symbols of inner comfort - Base station LCD display - Min/max recording function - Trend arrows indicate rising, steady or falling temperature/humidity values - Transmitter range 30 m Technical data - Radio transmitter measuring range: -5 to +50 ° C - Transmitter dimensions: 113 x 61 x 39.5 mm - Dimensions of the device: 27.5 x 130 x 112 mm - Weight: 295g - Calibration: factory (without certificate) - Accuracy of humidity measurement: 5% - Basic accuracy (+/-) °C: 1 °C - Maximum humidity measuring range: 99% - Minimum humidity measurement range: 1% - Power source: 4x AA battery / 2x AA battery - Maximum temperature: +60 °C - Minimum temperature: -40 Kit includes - Base station + radio transmitter - Batteries - User manual