Product Description 
 DWHJ2 type Thermohygrometers dual-use meter is based on the bimetal sensing element continuously recorded near the ground each time period the change in temperature of the air, with a beam of defatted hair inductive element continuous recording instrument near the ground each time period changes in the relative humidity of the air. 
 DWHJ2 type temperature and humidity dual-use meter for meteorological stations, defense, military, scientific research, agriculture, forestry, environmental monitoring, teaching, warehouses, laboratories, cultural preservation, archives and other relevant departments. 
 Technical parameters 
 Temperature: 
 · Measuring range: -35 ~ +45 ℃ 
 · Accuracy: ≤ ± 1 ℃ 
 Recording period: 26h (the diary DWHJ2), 176h (weekly diary DWHJ2-1) 
 · Dimensions: 320 × 190 × 270mm 
 Humidity: 
 · Measuring range: 30% ~ 100% RH 
 · Accuracy: ≤ ± 5% RH 
 · Record cycle: 26h (Diary DWHJ2), 176h (the weekly DWHJ2-1 
 · Dimensions: 320 × 190 × 270mm 
 · Weight: ≤ ± 4.5kg