Professional handheld pH-meter for laboratory and field. Features: • 100 % waterproof with easy-to-clean silicone keypad • CMC function – secures your measurement range • Waterproof USB interface – field proven PC communication • 3310 Series : High capacity datalogging - the 3310 Series is the best choice where high capacity datalogging is required whether you are measuring pH • Not only quality but also quantity makes the difference. Besides the measuring features provided with the 3210 series, the measuring instrument pH 3310 has the following advantages - Interval controlled datalogging function for up to 5000 records: perfect for long-term recording in the field -100 % waterproof USB interface for field measurement -Fast data transfer to laptop or PC Specifications: • Range: pH: -2,00 … +19,9 pH- mV: -1200,0 … +0,3 mV Temp.: -5,0 … +105,0 °C • Accuracy (±1 digit): pH: ±0,01 pH- mV: ±0,3 mV at +15 °C … +35 °C Temp.: ±0,1 K • AutoRead: automatic/manual selectable • CMC: yes • Calibration: 1, 2, 3, 4 or 5 points; WTW Technical, DIN/NIST and further 16 buffer sets • Calibration memory: up to 5 calibrations recallable • Display: LCD graphic display, backlit • Data memory: manual 200/automatic 5000 • Datalogger: manual/timer driven • Interface: USB slave • Power supply: 4 x 1.5 V AA or 4 x 1.2 V NiMH rechargeable • Continuous operation: up to 1000 hours (150 with lit display) Delivery Contents: • pH-meter pH 3310 • professional case • stand StH 320 • SenTix® 41 pH electrode with DIN connector • technical buffers 4,01 + -7,0 • 3 mol KCl solution • measuring jug • CD-ROM with driver-software for USB • connector cable • manual