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. The RHT510 measures relative humidity, air temperature, dew point temperature, wet bulb temperature and K-type temperature (with external probe). Specification - LCD display with backlight and hold function - Lightweight device, ergonomic design with neck strap - Measurement of relative humidity and temperature (air, K-type, dew point and wet bulb temperature) - C/F temperature units available - MAX-MIN record - Tripod mount Technical data - Air temperature measurement range: 0 to + 50 ° C - Dimensions: 25x58x153mm - Weight: 160g - Calibration: factory (without certificate) - Environment monitor features: mold/dew point warning - Accuracy of humidity measurement: 4% - Basic accuracy (+/-) °C: 1.2 °C - Maximum humidity measuring range: 95% - Minimum humidity measurement range: 10% - Power source: 4.5V - Maximum temperature: +1300 °C - Minimum temperature: -100 °C - Weight data: with batteries Kit includes - Wrist strap - Batteries - Temperature sensor (-40 to +250°C) - User manual