Leaf Porometer

Customers can avail from us Leaf Porometer that measures the diffusion conductance by making a comparison between the rates of humidification within small corvette readings that are achieved by a calibration plate. This product is appreciated in the market for its precise accuracy in the derived valued.


  • Direct readout of conductance or resistance
  • Simple absolute calibration in the field
  • Minimizes leaf stress during measurement
  • Award-winning user interface


Measurement units:

  • Conductance: mmol m-2 s-1, mm s-1, cm s-1
  • Resistance: s cm-1, s m-1, m2s mol-1
  • Sensor heads: Cups (a) slot, 2.5 x 17.5 mm, rounded ends
  • (b) circle, 6 mm diameter
  • RH sensor: Vaisala 1518 HM, thin film capacitor
  • Temp. sensors: High precision 100 K thermistors
  • Light Sensors: unfiltered Ga Asp photo-diode
  • Cable length: 1.2 m
  • Size/weight: 110 x 30 x 27 mm, 130 g includes cable

Data handling:


  • Reading memory: Up to 1,500 readings with full annotation
  • Data interface: RS-232 serial, up to 9,600 baud, supplied with connector and adapter for direct connection to IBM PC compatible computers
  • Software: For IBM PC’s, saves data to a comma-separated ASCII data file (.CSV)

Control unit:


  • Display: 8 lines x 40 character LCD
  • Keys: 13 function keys, plus full QWERTY keypad
  • Carrying case:Padded with shoulder and waist straps
  • Size/weight: 300 x 220 x 140 mm, 3 kg

Power Supply:


  • Battery: Internal rechargeable, 20 hour duration
  • Charger: Separate unit, 12 to 15 V DC, 0.5 A, 110, 220 or 240 V AC mains input
  • Recharge time: 14 hours
  • Battery life: 200 to 2,000 recharge cycles