Lambrecht 252 Thermohygrograph Chart Soil Thermometer We are delighted to present

We are delighted to present The Observer

accompanied by matching reusable

Printed in grey

500 Ohms at high end

A hygrometer is a humidity sensor or air moisture sensor and is a great addition to any home or garden

Lambrecht 252 Thermohygrograph Chart Soil Thermometer We are delighted to presentDescription Features Specification Lambrecht Chart 252 is a Monday start chart printed in green, measuring humidity from 0 100 % and temperatures between 35C to +45C. Paper size is 182mm x 300mm. Each pack contains 100 charts which is two years worth of thermo hygrograph papers. Based on a traditional design these ungummed thermo hygrograph charts are ideal for recording drums that have a clip to hold the chart in place. If your combined recording