Teledyne Flir Humidity and Temperature Probe For Extech RH520 Paperless Chart Recorders Extech RH522B Clocks and the hydrometer shows percentage

and the hydrometer shows percentage of relative humidity on the right

The Airmar Comnav Kit combines the precision of the H2183 Heading Sensor with the versatility of the WS-C10 NMEA 0183 WeatherStation Cable

1 "AA" Alkaline batteries (not included)

maximum wind gusts

you're immediately set up to track temperature

Teledyne Flir Humidity and Temperature Probe For Extech RH520 Paperless Chart Recorders Extech RH522B Clocks and the hydrometer shows percentageHumidity and Temperature Probe For Extech RH520 Paperless Chart Recorders Extech RH522B The Extech RH522B is a replacement Humidity and Temperature Probe for the RH520B Paperless Chart Recorder. It has a measurement range of 30C to 60C ( 22F to 140F) and 1% RH to 99% RH. No calibration required.