Sampling Rate 0.5-1.0 LPM. Diaphragm pump, Flow Adjustment, for needle valve. Operating time 08 hours after charging. NI- Cad. Rechargeable Battery. Charger us in built. Timer. Filter holder in Two size i.e. 25mm and 47 mm Dia. Power required 230 V, 50 Hz. Single phase A/c. Dimensions: (230 X 125 X 215) mm. Sampling Devices: Charcoal Tubes for volatile samples. Impingers Cap. 35 ml. For Gaseous and Filter Holder for SPM.ACCESSORIES Impinger: 04 Nos. Acrylic Holder: 01 No. Filter paper Pkt. Of 100 Sheets