Family Owned & Operated Since 1971• Bakersfield, CA
pH meters, conductivity meters, dissolved oxygen, ORP, and turbidity instruments
115 products
Enigma 3 Standard Loggers kit — 3 standard acoustic loggers plus data transfer case. Deploy under hydrant caps or on service connections to correlate overnight leak activity across a water main.
LC-5000 leak correlator with 2 pre-amplifiers — acoustic leak-location correlation system for water mains.
Mid-tier acoustic leak detector with backlit analog meter and a bank of 6 selectable band-pass filters (100/200/400 Hz low-side, 600/800/1200 Hz high-side) plus a Filter-Thru mode for 15 Hz–30 kHz full-spectrum listening. 62 dB amp, 110 dB hearing-protection limiter, 28 hr on 6× AA. Tunable analog filtering without digital complexity.
Top-of-line pinpoint leak detector with automatic DSP noise reduction that filters out intermittent interference (passing vehicles, conversations, footsteps) no analog model can reject. Onboard memory stores up to 250 sound recordings with min-noise-level detection across multiple pipe locations. 10 selectable filters (5 high / 3 low / 2 notch for 50 & 60 Hz hum), IP67 piezo sensor. The right pick for noisy urban environments or when you need to document your findings.
Rod-based survey listening instrument purpose-built for walking water distribution systems at hydrants, meters, and valves. Built-in A/C hum notch filter (transformers / power lines), 55 dB amplifier, 100 Hz–2000 Hz response, 3-range sensitivity, stereo leather-cup headphones. Ships with a short 4" rod and a 4-section 13" threaded rod set.
High-sensitivity acoustic leak detector built around a neodymium-magnet sensor (10 V/g) with dual-range filtering — high 30 Hz–5000 Hz for surveying, low 30 Hz–800 Hz for pinpointing, plus a 150–180 Hz notch. IP68 submersible sensor with 9.75 ft cable, 80-hour runtime on 4× C cells. SSI's pick when raw sensitivity and audio quality are the priorities.
Compact all-purpose acoustic leak detector — one handheld amplifier with three interchangeable attachments (three-point ground plate, magnetic base, contact rod) handles both survey sweeps and pinpointing. 100 Hz–1500 Hz, 56 dB amp, 2× AA cells for ~30 hr runtime, 8 lb total kit. The do-everything entry pick.
The ExStik II DO600 meter displays Oxygen level as percent of Saturation from 0 to 200. 0 percent or Concentration from 0 to 20.00 ppm (mg/L). It features Adjustable Altitude Compensation (0 to 20,000 feet in 1,000 ft. increments), Adjustable Salinity Compensation from 0 to 50 ppt and an analog bargraph for indicating trends. DO600 meter includes a DO electrode, protective sensor cap, spare membrane cap, electrolyte, four 3V CR-2032 batteries, and 48" (1.2m) neck strap.
Rod-based acoustic listening instrument for pinpointing water leaks at hydrants, meters, and valves. Lightweight, portable, and calibration-free — no batteries or cables required. Stainless-steel rod with a resonant chamber head delivers exceptional amplification of subsurface sounds. 1-meter length — the compact option for routine service calls.
Recall Min, Max and Average readings. Featuring Data Hold and a Built-in RS-232 PC serial interface with optional data acquisition software and data logger. Auto power off saves battery life. DO measurements from 0 to 20.0 mg/L. Complete with 0.8" (20mm) diameter probe on 13ft (4m) cable, 5 membranes, rubber holster, 9V battery and hard case.
CL200 is an ExStik Chlorine Meter. This revolutionary technique measures Direct Total Residual Chlorine from 0.01ppm to 10ppm. It makes non-subjective measurements unaffected by interferences associated with traditional colorimeters and spectrophotometers like sample color, turbidity, light, and pollutants. This product comes with an electrode, five packs of 10 reagent tablets (50 tests), a protective sensor cap, a sample cup with cap, four CR2032 batteries, and a 48” neck strap.
The DO210 is a Dissolved Oxygen Meter which measures DO from 0 to 20.0mg/L, Oxygen Percent from 0 to 100.0% and Temperature with ATC. This meter features Adjustable Altitude and Salinity Compensation as well as min, max and data hold functions. Complete with DO probe with membrane and 39" (1m) cable, two spare replacement membranes, electrolyte, 9V battery and soft case.
The 9-in-1 DO700 Kit measures DO concentration/saturation, pH, mV, Temperature, Conductivity, TDS, Salinity, and Resistivity. It features automatic salinity compensation and manual barometric pressure compensation for DO measurements. In addition, it has automatic one button calibration of 4, 7 and 10 pH with a choice of three-point calibration for better accuracy and it provides automatic temperature compensation. Complete with DO probe, pH/mV/Temp electrode, polymer Conductivity cell, pH and Conductivity calibration solutions, batteries and hard carrying case.
The Extech EC150 is a Conductivity/TDS/Temperature Meter with high-accuracy multi-ranging sensor. It features auto power off with disable, adjustable conductivity to TDS ratio factor from 0.4 to 1.0, data hold and low battery indication. The waterproof design withstands wet environment and meets IP65 standard. Includes meter, protective sensor cap, and four LR44 button batteries.
The EC170 is a Salinity Meter with Waterproof design (IP65). Measure salinity in aquaculture, environmental studies, ground water, koi ponds, irrigation, drinking water and other applications. Features a High accuracy multi-ranging sensor and Auto Power off with disable. Autoranging with 2 ranges of measurement. Data Hold, Auto Power Off and Low Battery Indication. Complete with salinity sensor, protective sensor cap, and 4 LR44 button batteries.
The Extech EC210 is a compact, handheld Conductivity Meter. Its long-life, carbon rod combination electrode measures conductivity, TDS and temperature. The meter features three ranges for conductivity and TDS, plus adjustable temperature compensation factor to maintain accuracy. Units of measure include µS/cm, mS/cm, ppm, °F, and °C.
The Extech EC400 ExStik features six units of measure, internal memory that stores up to 15 labeled readings for easy recall, adjustable conductivity to TDS ratio factor from 0.4 to 1.0, and self-calibration upon power up. The EC400 incorporates the latest microprocessor chip technology and patented sensor technology to enable the simultaneous measurement of conductivity, TDS, salinity, and temperature. With the touch of a button the EC400 allows you the flexibility of interchangeable cell constants and has made the job of testing fast, accurate, and repeatable. Complete with meter and Conductivity cell, protective cap, sample cup, four CR2032 batteries, and 48"(1.2m) neckstrap.
The EC500 is Conductivity/TDS/Temperature Meter. Measures 5 parameters including Conductivity, TDS, Salinity, pH, and Temperature using one electrode. Analog bargraph indicates trends. Memory stores up to 25 labeled readings. Waterproof meter with high-accuracy multi-ranging sensor. Features Auto Power off with disable. Complete with meter and electrode, protective cap, sample cup, four 3V CR-2032 batteries, and 48" (1.2m) neckstrap.
The EC510 is a conductivity testing kit. Kit includes EC500 meter, 3 calibration standards, 3 pH buffer pouches plus rinse solution, 3 cups, batteries and carrying case. Measures 5 parameters including conductivity, TDS, salinity, pH and temperature using one electrode. Analog bargraph indicates trends. Memory stores up to 25 labeled readings. Adjustable Conductivity to TDS ratio from 0.4 to 1.0; 0.5 fixed Salinity ratio.
The 7-in-1 EC600 Kit measures Conductivity, TDS, Salinity, Resistivity, pH, mV and Temperature. It has automatic one button calibration of 4, 7 and 10 pH with a choice of three point calibration for better accuracy and it provides automatic temperature compensation. One point conductivity calibration automatically recognizes eight calibration solutions from USA, Europe, and China. Memory stores up to 300 readings with series number, measured value and temperature. The meter has a large, blue, backlit LCD display screen with an auto power off function with disable that saves battery life. The IP57 waterproof housing protects it from the elements. Complete with pH/mV/Temperature electrode, polymer Conductivity cell, pH and Conductivity calibration solutions, batteries and hard carrying case.
The Extech EC700 water quality tester kit is your all-in-one solution. With interchangeable probes, it measures pH, conductivity, TDS, salinity, and dissolved oxygen—making it perfect for aquaculture, laboratories, water treatment plants, and more. Its rugged IP67 waterproof design, large LCD display, and auto temperature compensation ensure reliable results wherever you go.
The Extech EX900 ExStik 4-In-1 Kit includes a CL200 meter, pH and ORP electrodes, reagent tablets (50 tests), four plastic cups, a weighted stand, pH buffer pouches, four CR2032 batteries, 48-inch neck strap, carrying case, and user manual. The meter measures total chlorine, pH, ORP, and temperature with interchangeable flat surface electrodes that are included. Flat surface electrodes work in liquids, semi-solids and solids. Built-in memory can store/recall up to 15 readings and save the last calibrated value. It has a large 3-1/2 digit (2000 count) digital display with a bargraph and an automatic electronic self-calibration function for chlorine and ORP (1, 2, or 3 point buffer calibration for pH).
Specifically designed for the quick and accurate measurement of fluoride ions in drinking water and other aqueous samples, the ExStik FL700 incorporates a sensing electrode, measuring electronics, and display in one convenient package, making this unit ideal for field or laboratory testing. The FL700 is capable of direct reading of total fluoride from 9.99 ppm or mg/L down to 0.1ppm, and the meter provides automatic temperature compensation (±10 degrees C of calibration temperature). Complete with electrode, TISAB reagent tablets, sensor cap, four 3V button batteries, and 48" (1.2m) neckstrap.
The waterproof ExStik PH100 pH meter by Extech is a rugged, accurate, reusable stick pH meter with unique data storage features that make it exceptionally easy to use. The flat surface electrode allows you to measure pH in liquids, semi-solids, and solids while limiting electrode breakage and clogged junctions. The LCD readout displays pH, temperature, and an analog bar graph that shows trends in acidity or alkalinity and indicates when the reading is stable. Other features include automatic temperature compensation, auto power off, low battery indicator and data hold. The PH100 comes with a protective sensor cap, sample cup, four 3V CR2032 button batteries and a 48 in. (1.2 m) neck strap. For more convenience, purchase the EX006 weighted base, which holds both the sample cup and ExStik meter.