-30...250°C - -20...60°C

The Extech RHT3 is an EzSmart Hygro-Thermometer for use with Android or iOS Smart Devices. The RHT3 EzSmart Hygro-Thermometer comes with a free app from iTunes and Google Play for taking readings. Complete with built-in sensor and protective connector cap with strap.

The Exhecth EA20 Hygro-Thermometer measures Relative Humidity, Temperature, Dew Point, and Wet Bulb and displays any two parameters (Temperature and Humidity or Dew Point, or Wet Bulb) simultaneously. Min/Max function stores and recalls highest and lowest readings. The timer function displays the elapsed time (mins: secs and day: hour). Additional features include programmable auto power-off time frame, switchable °C/°F temperature units, Data Hold, Auto power off, and Low battery and over-range indication. The EA20 comes complete with a built-in stand, protective holster, probe sensor with 39 in. (1m) coiled cable, and 6 AAA batteries.

The WIKA TR21-A resistance thermometer provides temperature measurement in sanitary applications and can be used for the measurement of liquid and gaseous media in the range of -30 … +250 °C (-22 … +482 °F). For application in hazardous areas, intrinsically safe versions are available. These thermometers are fitted with thermowells, whose process connections meet the stringent requirements, in terms of materials and design, of hygienic measuring points. All electrical components are protected against moisture (IP67 or IP69K). The resistance thermometer is available with direct sensor output or integrated transmitter, which can be configured individually via the PC configuration software WIKAsoft-TT. Measuring range, damping, error signalling per NAMUR NE43 and TAG no. can be adjusted. For easy calibration or maintenance, the sensor is removable without having to break into the process or disconnect the electrical connection. Thus hygiene risks can be minimised, and downtimes can be reduced. The spring loading, integrated into the union nut, guarantees the contact between the sensor tip and the bottom of the thermowell and thus ensures a short response time and lasting high accuracy. The welded junction between the thermowell and the flange makes the use of a sealing as additional material in those areas redundant which are in contact with the product. Insertion length, process connection, sensor and connection method can each be selected for the respective application within the order information. The electrical connection is made via an M12 x 1 circular connector. For applications requiring the sterilisation of the instrument in autoclaves, an especially temperature-resistant instrument version is available.