VAISALA HM41 Handheld Humidity and Temperature Meter (-10 … +60 °C (+14 … +140 °F))

- Humidity Measurement Accuracy (Including Non-linearity, Hysteresis, and Repeatability):

At 0 … +40 °C: ±1.5 %RH (0 … 90 %RH) /  ±2.5 %RH (90 … 100 %RH)

At -10 … 0 °C and +40 … +60 °C: ±3.0 %RH (0 … 90 %RH) /  ±4.0 %RH (90 … 100 %RH)

- Humidity sensor: HUMICAP 180R

- Temperature measurement range: -10 … +60 °C (+14 … +140 °F)

- Temperature sensor: Pt1000 RTD Class F0.1 IEC 60751

- Measurement probe: Interchangeable HMP113 probe

- Probe material: PC/ABS plastic blend (white)

- IP rating: IP54

- Weight (with alkaline batteries): 230 g (8.1 oz)

- Filter material: PC (glass-reinforced)