SevenGo Duo pro™
Professional portable watertight (IP67) dual-channel meters with data memory, infrared interface for data transfer to a PC or a printer, bright backlighting and extensive GLP support - ideal for special requirements in regulated sectors or for measurements under extreme conditions.

SevenGo Duo™
Watertight (IP67) portable dual-channel meters for routine pH measurement with a large display, data memory and indication of the electrode status - ideal for applications that require a high-quality meter with exceptional performance.

Intuitive and Easy Operation
Designed in such a way that a single keystroke triggers a calibration run, measurement or review of stored data.

Intelligent Sensor Management (ISM®)
ISM® leaves nothing to chance! Calibration data and history are stored in the sensor and transferred automatically upon connection to the meter.

Ergonomic Masterpiece
Fits your hand perfectly, regardless of whether you are right- or left-handed. Your thumb can reach all buttons – easy to operate.

Model	SG23-B 51302600	SG23-ELK 51302601	SG23-FK2 51302602	SG78-B PRO 51302620	SG78-ELK PRO 51302621	SG78-FK2 PRO 51302622	SG78-USP/EP PRO 51302622
SevenGo Duo Kits	Instrument only	Electrode kit with InLab® Expert Pro-ISM and InLab®738-ISM (both IP67, 1.8 m cable)	Field kit with InLab® Expert Pro-ISM, InLab®738-ISM (both IP67, 2 m cable) and uGo™	Instrument only	Electrode kit with InLab® Expert Pro-ISM and InLab®738-ISM (both IP67, 1.8 m cable)	Field kit with InLab®Expert Pro-ISM, InLab®738-ISM (both IP67, 1.8m cable) and uGo	Like SG78-ELK but with different sensors: Inlab® Pure Pro-ISM, 2m ISM-electrode cable and Inlab® 742-ISM
pH measuring range	0 – 14	0 – 14	0 – 14	-2.000 to 19.999	-2.000 to 19.999	-2.000 to 19.999	-2.000 to 19.999
pH resolution	0.01	0.01	0.01	0.001	0.001	0.001	0.001
pH accuracy	0.01 ±	0.01 ±	0.01 ±	±0.002	±0.002	±0.002	±0.002
Temperature Range	-5 °C – 105 °C	-5 °C – 105 °C	-5 °C – 105 °C	-5.0 to 130.0 °C (ATC) -30.0 to 130.0 °C (MTC)	-5.0 to 130.0 °C (ATC) -30.0 to 130.0 °C (MTC)	-5.0 to 130.0 °C (ATC) -30.0 to 130.0 °C (MTC)	-5.0 to 130.0 °C (ATC) -30.0 to 130.0 °C (MTC)
Temperature Resolution	0.1 °C	0.1 °C	0.1 °C	0.1 °C	0.1 °C	0.1 °C	0.1 °C
Temperature accuracy	±0.5 °C	±0.5 °C	±0.5 °C	±0.2 °C	±0.2 °C	±0.2 °C	±0.2 °C
mV Measuring range	-1999 to 1999	-1999 to 1999	-1999 to 1999	-1999 to 1999	-1999 to 1999	-1999 to 1999	-1999 to 1999
mV resolution	1	1	1	0.1	0.1	0.1	0.1
mV accuracy	1 ±	1 ±	1 ±	±0.1	±0.1	±0.1	±0.1
Conductivity measuring range	0.1 µS/cm – 500 mS/cm	0.1 µS/cm – 500 mS/cm	0.1 µS/cm – 500 mS/cm	0.01 µS/cm to 1000 mS/cm	0.01 µS/cm to 1000 mS/cm	0.01 µS/cm to 1000 mS/cm	0.01 µS/cm to 1000 mS/cm
Conductivity accuracy (±)	0.01 to 1	0.01 to 1	0.01 to 1	0.01	0.01	0.01	0.01
Conductivity accuracy	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
TDS Measuring range	0.01 mg/L to 300 g/L	0.01 mg/L to 300 g/L	0.01 mg/L to 300 g/L	0.01 mg/L to 600 g/L	0.01 mg/L to 600 g/L	0.01 mg/L to 600 g/L	0.01 mg/L to 600 g/L
TDS Resolution	0.01 to 1	0.01 to 1	0.01 to 1	0.01 to 1	0.01 to 1	0.01 to 1	0.01 to 1
TDS accuracy	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C
Spec. resistance	0.00 to 100.0 M&omega cm	0.00 to 100.0 M&omega cm	0.00 to 100.0 M&omega cm	0.00 to 100.0 M&omega cm	0.00 to 100.0 M&omega cm	0.00 to 100.0 M&omega cm	0.00 to 100.0 M&omega cm
Spec. Resolution	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1
Spec. accuracy	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C
Salinity Measuring range	0.00 to 80.0 ppt	0.00 to 80.0 ppt	0.00 to 80.0 ppt	0.00 to 80.0 ppt	0.00 to 80.0 ppt	0.00 to 80.0 ppt	0.00 to 80.0 ppt
Salinity Resolution	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1	0.01 to 0.1
Salinity accuracy	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C	±0.5 °C
pH sensor inputs	BNC; RCA/cinch (both IP67)			BNC; RCA/cinch (both IP67)
Conductivity sensor input	LTW 7-pin (IP67)			LTW 7-pin (IP67)
Outputs	-			IR to printer or PC via RS232 or USB
Power supply	4 1.5 V AA batteries or 1.3 V NiMH accumulators			4 1.5 V AA batteries or 1.3 V NiMH accumulators
Operating conditions	0 to 40 °C, 5 to 85% rel. humidity (non-cond.)			0 to 40 °C, 5 to 85% rel. humidity (non-cond.)
Size/weight	220 x 90 x 45 mm/357 g (without batteries)			220 x 90 x 45 mm/325 g (without batteries)

more info Mettler Toledo 51302329 LTW-MiniDin Sensor Cable more info Price: $124.96 In Stock The appropriate cable to connect the conductivity sensor mini DIN to a portable meter more info Mettler Toledo 51302322 SevenGo rubber holster more info Price: $63.65 In Stock The SevenGo rubber holster acts as protective armor to your SevenGo, increase its protection against spills, scratches and droppings more info Mettler Toledo 51302325 SevenGo clip more info Price: $57.95 In Stock Attach the Sensor to your SevenGo and have one hand free more info Mettler Toledo 51302331 SevenGo wrist strap more info Price: $60.80 In Stock Blue band for easier holding of SevenGo instruments.Attach the wrist strap to the meter and your arm for additional security more info Mettler Toledo 51302333 SevenGo Duo Pro IR-RS232 Adapter more info Price: $457.60 In Stock IR-RS232 MODIFIED more info Mettler Toledo 30281913 InLab Sensor cable MultiPin-BNC/RCA IP67 (1.8m) more info Price: $166.32 In Stock Connecting cable for sensors with MultiPin sensor head. White 1.8 m insulated sensor cable with copper core to ensure fast signal transfer of the high impedance pH signal by simultaneously high mobility. more info Mettler Toledo 51344295 AK9-BNC/RCA Cable more info Price: $250.80 In Stock The appropriate cable to connect the InPRO ISM to S8, SG 68 or SG 78 meter