• Conductivity standards for EC meters on page A1
• Electrode cleaning, storage and filling solutions on page A1
• pH Calibration buffers on page A3
• pH Paper on page W1
• Timers on page E4
• Waterproof instrument pouch on page E4
• European-made range of small instruments on pages E1 - E3
• Calibrating pH meters - User note

Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation. Automatically calibrates to pH 4, 7, 10 buffers and can be adjusted to recognise non-standard buffers as well. Features hold function and auto power off with low battery indicator. The case is IP65 water proof, and the pen will float if accidentally dropped into the water.
Comes with 4 button-cell batteries and a built-in electrode kept moist with a protective cap.
Models E850051 and E850052 have a wider pH range, ATC (Automatic Temperature Compensation) as well as a temperature display in °C.
Model E850052 also features a higher resolution and accuracy.
Dimensions: 165 x 35 x 32mm
Weight: 68g

Model:	E850051	E850052
Range	0~14	0~14
Resolution	0.1	0.01
Accuracy	±0.2 pH	±0.05 pH
Waterproof IP65
Hold
Indicates Low Battery
Auto 3 pt Calibration
Auto Power Off
Auto Temperature Compensation
°C & °F Display

Note: These pens are not suitable for measuring the pH of near neutral, near pure water such as in ponds and fish tanks. Pure water has no buffering capacity so anything can make the pH fluctuate.

Large 22mm high digits and lightweight design make this pH metre ideal for both field and lab applications. Simple to operate and works with any electrode with a BNC connector. Measures the full 0 ~ 14 pH range with a high 0.01 pH resolution. Features 2 point calibration, hold function, fold out easel back and a tripod screw. Comes with a 9V battery, calibration tool, and full instructions.
Weight: 238 g
Dimensions: 195 x 68 x 30mm

Optional accessories
E840016 General purpose pH probe
E840049 Spear tip pH probe
E840090 Water resistant instrument pouch
E840092 Bench-top tripod
E840093 Field tripod

Additionally, this metre may be purchased as a kit which includes an epoxy sealed reference electrode with 750mm cable, pH buffers 4 & 7, deionised water, battery, calibration tool, hard-shell carrying case, instructions and a 9V battery.
Dimensions: Case 280 x 190 x 63mm
Weight: Case 1.1kg.

Our pH calibration buffers are in section A.

For Sper pH meters:

ESF840087 ‐ Basic pH meter

E850055 ‐ Advanced pH meter

E850060 ‐ pH Datalogger with SD card

ESF850081 ‐ Water quality meter

E860031 ‐ Bench‐top pH/MV meter

E860033 ‐ Bench‐top water quality meter

Probe length: 15.24cm (6")
Cable length: 121.92cm (48")
Range: 1~14
Resolution: 0.01
Accuracy: ± (0.02PH 2d)

Reads either pH (in 0.01 resolution) or mV in large digits, with time, date, and temperature (in °C or °F) shown simultaneously on the lower display. Also indicates stable reading, low battery and displays calibration data. Scroll 99 data points with time stamps and min/max readings directly on the backlit LCD. Features hold, up to 5 point calibration, automatic buffer recognition, manual or automatic temperature compensation and a USB port.
Comes with 4 AAA batteries.
Will accept any pH or ORP probe with a BNC connector.
Dimensions: 170 x 70 x 33mm
Weight: 397g

ADVANCED pH METER KIT E850056
The kit included an Advanced pH metre (E850055) in a hard carrying case complete with a detachable temperature compensated pH probe with‐ 1m cable, pH buffers 4,7,10 and distilled water

Optional accessories
E840016 pH probe (non‐ATC)
E840049 Spear tip pH probe (non‐ATC)
E840052 Data acquisition software
E840054 USB cable
E840089 Rubber holster
E840090 Water resistant instrument pouch
E840092 Bench‐top tripod
E840093 Field tripod
E840096 AC adapter
ESF850088 ORP probe
E850059P ATC pH probe

Reads pH, ORP, and temperature. Records data onto standard SD memory cards (like a digital camera). When full, simply exchange SD cards for unlimited data storage. The removable SD card is easy to transport and insert into a computer's memory card slot or SD card adapter. Uploads preformatted data to Excel, without the need for additional software and cables. Additional SD cards are readily available in a variety of memory sizes.
Can also manually record 99 readings for on-screen review or stream data directly to a computer, using the optional software and cables. Each data set includes pH, temperature, time and date.
Features ATC (automatic temperature compensation) or manual temperature adjustment, automatic buffer recognition, min/max, auto power off, low battery indicator and hold function.
This well made unit is extremely accurate with fast response times, and includes a fold-out tripod and a large easy-to-read backlit LCD. Comes ready to use in a soft carrying case with 6 AA batteries, instruction manual and a 2GB SD card.
ATC temperature probe available as optional accessory. Will accept any pH or ORP probe with a BNC connector.
Dimensions: 177 x 68 x 45mm
Weight: 489

Optional accessories
E840016 General purpose pH probe
E840038 ATC temp probe
E840049 Spear-tip pH probe
E840057 RS232 computer cable
E840059 2GB SD card
E840090 Water resistant instrument pouch
E840093 Field tripod
E840094 USB computer cable
E840097 AC adaptor
E850080 Software
ESF850088 ORP probe

Kit
Everything necessary for immediate field use: Datalogger E850060, sealed epoxy body reference combination electrode with a BNC connector and a 750mm cable, ATC temperature probe, pH buffers 4, 7, 10 and deionised water, batteries and instructions.
All components are contained in a slim but protective hard-shell, foam-lined case.
Kit dimensions: 280 x 190 x 63mm

Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in °C or °F).

Features

• Automatic or manual temperature compensation
• Automatic or manual ranging
• Automatic buffer recognition
• Digital and analogue outputs
• Min/max and 99 data points
• Data hold
• 5 Calibration points
• Electrode status indication

Operates on AC voltage (no batteries). Comes ready to use with ATC pH electrode, electrode holder arm, AC adaptor, computer cable & software. Also accepts any pH or ORP probe with a standard BNC connector.
Dimensions: 217 x 168 x 58mm
Weight: 533g

Optional accessories
E840016 pH probe (non ATC)
E840049 Spear tip pH Probe
E840094 USB cable
E850059P Replacement ATC pH probe
E850088 ORP probe

Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. Designed for simple one-hand operation with automatic temperature compensation and calibration to air. The polarographic probe has a built-in temperature sensor and easy to replace pop-off probe heads. Simultaneously displays dissolved oxygen and temperature readings. Also holds readings and recalls minimum and maximum. IP-67 water proof.
Comes ready to use in a soft carrying case with belt loop, two spare probe heads, electrolyte and 4 AAA batteries.
Dimensions: 180 x 40 x 40mm
Weight: 175g

Optional accessories
E850089 Replacement probe head

Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. Automatic temperature compensation as well as manual compensation for salinity and altitude (all factors directly effecting DO readings). Simultaneously displays dissolved oxygen (in % or mg/L) and temperature readings (in °C or °F). Review 99 data points readings directly on the large backlit LCD. Features simple one-button calibration to air. The electrolyte level is visible through the transparent galvanic probe with built-in temperature sensor. DO probe heads include built in membranes and screw on and off for easy replacement. Also functions as a pH and conductivity metre when used with the optional probes. Comes in a hard carrying case complete with pB (lead) free Galvanic DO probe with 9' cable, 2 spare probe heads with membranes installed, electrolyte and 4 AAA batteries.
Dimensions: 170 x 70 x 33mm
Weight: 397g

Optional Accessories
850048 Dissolved Oxygen Meter Kit
850048DO Replacement DO Probe
850048C/S Optional Conductivity/Salinity Probe
850048PH Optional pH Probe
840089 Rubber Holster
840090 Water Resistant Instrument Pouch
840092 Benchtop Tripod
840093 Field Tripod

Highly stable and accurate readings with large LCD display. Designed for simple one-hand operation. Simultaneously displays the parameter being measured and temperature in °C and °F.
Features automatic temperature compensation, 2 pt. calibration, auto power off, hold function, and a low battery indicator. The case is IP65 waterproof, and will float if accidentally dropped into the water.
Comes with 4 button-cell batteries and a built-in probe with protective cap.
Dimensions: 165 x 38 x 38mm
Weight: 68g

Measures conductivity (0.1µS ~ 199mS), salinity, TDS (total dissolved solids) and temperature. Determine water purity in boilers, coolers, water conditioning, waste water, photography, environmental testing, aquariums, labs, industrial and quality control. The large LCD shows conductivity, TDS or salinity in large digits with time, date and temperature (in °C or °F) shown simultaneously on the lower display. Scroll 99 data points directly on the LCD with time stamps, minimum, maximum and average readings. Also features hold, manual or auto range and ATC (automatic temperature compensation).
Comes in a hard carrying case complete with built in RS-232 and IRDA ports, detachable probe with 1m cord and 4 AAA batteries.
Weight: 397g
Dimensions: 170 x 70 x 33mm

Optional accessories
840052 Software
840054 RS-232 Computer cable. A standard RS232 cable is not sufficient, the instrument has a unique plug.
E840090 Water resistant instrument pouch
840092 Bench-top tripod
840093 Field tripod

Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in °C or °F).

Features

• Automatic or manual temperature compensation
• Automatic or manual ranging
• Automatic buffer recognition
• Digital and analogue outputs
• Min/max and 99 data points
• Data hold
• 5 Calibration points on conductivity and TDS (total dissolved solids) and 2 for salinity
• Electrode status indication

Operates on AC voltage (no batteries). Comes ready to use with ATC conductivity electrode, electrode holder arm, AC adaptor, computer cable and software.
Dimensions: 217 x 168 x 58mm
Weight: 533g

Optional accessories
850038P Replacement conductivity/ TDS/ salinity probe
840094 USB cable

Using interchangeable probes this versatile metre reads pH, mV, conductivity, TDS, DO temperature and ORP. The user can order probes for only the parameters currently required and add additional probes in the future. Intelligent probes electronically retain calibration information. No recalibration is required when changing probes. The display simultaneously reads temperature in user selectable °C & °F and all measurements are automatically temperature compensated. RS-232 port enables communication with a computer. Also features auto power off, hold and min-max. Fold out easel back and a tripod screw. Comes with 9V battery and a hard-shell foam-lined carrying case with room for one or two probes.

This Water Quality Meter does not include any probes.

Dimensions: 195 x 68 x 30mm
Weight: 250g

Optional accessories
E840090 Water resistant instrument pouch
E840092 Bench-top tripod
E840093 Field tripod
E840057 RS232 1.2m cable. A standard RS232 cable is not sufficient, the instrument has a unique plug.
E840094 USB cable
E850080 Software

pH probe is E840016 on this page

Some of the other probes for the ESF850081 can be found below

Specs are for ESF850081 meter, probe specs may vary.

Reads pH, ORP (oxygen reduction potential), MV, conductivity, TDS (total dissolved solids), salinity and temperature. Rugged housing with large LCD displaying the parameter being measured together with time, date and temperature (in °C or °F).

Features

• Automatic or manual temperature compensation
• Automatic or manual ranging
• Automatic buffer recognition
• Digital and analogue output
• Min/max and 99 data points
• Data hold
• 5 Calibration points
• Electrode status indication

Operates on AC voltage (no batteries). Comes ready to use with ATC conductivity and pH electrodes, multiple electrodes holder arm, AC adaptor, computer cable & software. Also accepts any pH or ORP probe with a standard BNC connector.
Dimensions: 217 x 168 x 58mm
Weight: 533g

Optional accessories
E840016 pH Probe (non ATC)
E840049 Spear tip pH probe
E840094 USB cable
E850038P Replacement conductivity/ TDS/ salinity probe
E850059P Replacement ATC pH probe
E850088 ORP probe

AquaShock® meters have been designed and tested to ensure accurate, reliable water quality measurement under any conditions. The integral soft-grip outer layer provides a firm grip, even in wet environments, and an anti-shock LCD, and other high-end components, further ensures that AquaShock® is fully shockproof. AquaShock® meters are also IP67 waterproof and will float if accidentally dropped in water. The screw-down probe connections are watertight when used with AquaShock® probes. When a waterproof connection is not needed, any BNC-connected probe can be used. The latest high performance electronics give AquaShock® meters extremely stable and accurate readings. Results are easy to read, in any light, on the large LED backlit display. Powered by a long-lasting, environmentally friendly, rechargeable, Lithium-Ion battery.

AquaShock® meters are very intuitive and include all the functions you will likely ever need including:

• Review of 99 memories, min-max-ave, directly on the meter's display
• Internal clock and calendar
• °C & °F
• Auto-ranging
• Automatic and manual temperature compensation
• Hold

You will find no metre more rugged and reliable than AquaShock®.
Dimensions: 210 x 108 x 57 mm. Weight: 476 g.
Features

• Floats
• Fully Shockproof. The integral (double injection molded) soft-grip outer layer provides a firm grip, even in wet environments and helps protect the internal components from shock. A reinforced internal structure and anti-shock LCD with a protective window further ensure that AquaShock® meters will not be damaged when dropped from any angle.
• IP67 Waterproof including probe connections and will float if accidentally dropped in water.
• Protective soft-grip outer layer
• Rechargeable Lithium-Ion Battery, provides over 80 hours of continuous usage on model E850034 and 200 hours per charge on all other models. Eliminates disposal of standard batteries containing mercury and other elements harmful to the environment. To protect the battery, AquaShock® meters automatically stop charging when full.
• Also accepts standard BNC probes
• Screw-Down Probe Connections are watertight when used with AquaShock® probes. When a waterproof connection is not needed, any BNC-connected probe can be used.

AquaShock® pH Kit E850057K

• Measures pH, mV and temperature
• 5 calibration points
• Automatic buffer recognition
• Recalls electrode offset, slope and last calibration

Includes AquaShock® pH Meter E850057; AC adaptor; manual; warranty card; probe input covers; ATC pH probe;pH 4.01, 6.86, 9.18 & distilled water; protective, foam-lined, hard-shell carrying case.

AquaShock® pH ORP Kit 850064K

• Measures pH, mV & ORP (Oxygen Reduction Potential)
  and temperature
• 5 calibration points
• Automatic buffer recognition
• Recalls electrode offset, slope and last calibration

Includes AquaShock® pH/ORP Meter E850064; ATC pH probe; AC adaptor; manual; warranty card; probe input covers; pH 4.01, 6.86, 9.18 & distilled water; protective, foam-lined, hard-shell carrying case.

AquaShock® Water Purity Kit E850034K

• Determine water purity in applications such as coolers, waste water, environmental testing, aquariums and industrial quality control
• Measures conductivity in mS or uS, TDS (Total Dissolved Solids) in ppm or ppt, and temperature
• Recalls last calibration points

Includes AquaShock® Pure Water Meter E850034; ATC conductivity / TDS probe; AC adaptor; manual; warranty card; probe input covers; protective, foam-lined, hard-shell carrying case.

AquaShock® DO Kit E850046K

• Measures DO (Dissolved Oxygen) in either % saturation, ppm or mg/L
• Accepts corrections for salinity and barometric pressure
• Automatic calibration to air
• Recalls slope and last calibration

Includes AquaShock® DO Meter E850046; AC adaptor; manual; warranty card; probe input covers; ATC DO probe; protective, foam-lined, hard-shell carrying case.

Optional Accessories
E850034P Replacement AquaShock® ATC Conductivity/TDS Probe
E850046P Replacement AquaShock® ATC DO Probe 10' Cable
E850046P25 Replacement AquaShock® ATC DO Probe 25' Cable
E850046P50 Replacement AquaShock® ATC DO Probe 50' Cable
E850057P Replacement AquaShock® ATC pH Probe
E850064P AquaShock® ORP Probe
E840092 Benchtop Tripod
E840093 Field Tripod

These pocket digital refractometers measure brix, salinity and a wide variety of other parameters in the field with laboratory accuracy. As small, light and simple to use as optical refractometers, but with the precision of a digital readout.
Samples can be as small as 1.0 mL. Sample temperature is initially displayed on the large LCD followed by the measurement results. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shut-off after 3 minutes. (The temperature is given in Fahrenheit only, but since the compensation happens automatically, the actual temperature is not really important.)
A sturdy water resistant case protects the electronics from wet environments and makes for easy clean-ups. All models feature one button calibration to distilled water and indicate when the battery should be replaced (8000 readings).
Comes ready to use with distilled water, transfer-pipette, AAA battery, instructions and a carrying case.
Dimensions: 118 x 62 x 32mm
Weight: 130g

Custom scale refractometers are available by special order. Please allow lead times of approximately 60 days.
The customer may choose up to 4 scales per refractometer which will be programmed into the unit prior to shipment. The models have either single or multiple scales (2, 3, or 4), and standard or wide-range scales. Choice of 94 scales.

These Laboratory refractometers measure brix, salinity, refractive index and clinical parameters with full scale accuracy of 0.2% using CCD scanner (= linear scanned array imaging) technology. Samples can be as small as 0.4 mL.
Measurement results, unit of measure and sample temperature are all displayed on the large LCD and visual alarms are indicated by a red LED. The sophisticated microprocessor provides automatic calibration, automatic temperature compensation and automatic shutoff (after 3 minutes). A sturdy water resistant case protects the electronics from wet environments and makes for easy clean ups. All models feature one button calibration to distilled water and indicate when the battery should be replaced (5000 readings).
Supplied ready to use with a 9V battery, distilled water, transfer pipette, instructions and a protective case.
Dimensions: 180 x 100 x 65mm
Weight: 500g