Reference Electrodes
STELTH 2®
Solid-State Reference Electrodes
For Buried and Concrete Applications
The STELTH® 2 is our most versatile reference electrode, as it works well in most environments – from moist to dry, and from soil to concrete.
The STELTH 2 features our proprietary ceramic made with our Moisture Retention Membrane (MRM™), which lets moisture in, traps it within the ceramic, and keeps the cell’s internal electrolytes from leeching or drying out in desert soil.
The 32 in2 of ceramic sensing surface area also gives the STELTH 2 the versatility to work with the desert’s common soil condition variations, ranging from hydrated to dehydrated. (If the soil gets dehydrated, there is no electrical path to take a reading, but once the moisture comes back, the reference electrode will reactivate and be ready to take readings.)
This large sensing area of the STELTH 2 also makes your job easier by making electrode positioning less critical, as you can achieve accurate readings from a wider variety of placements. (Whenever possible, it is optimal to install a stationary electrode at the spring line of the structure to eliminate IR-drop and achieve a more accurate reading.)
Also see: STELTH® 6: A smaller version of the 2″ thick STELTH 2; at only 3/4″ wide, the STELTH 6 needs a much smaller hole drilled for installation, making it ideal for concrete applications.
Pick your chemistry
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Just a few reasons BORIN STELTH solid-state reference electrodes are unique:
Never need recharging or re-calibrating
Impregnated with membrane that keeps electrolytes from drying out or getting contaminated
Trap hydrogen sulfide or excess chloride ions to maintain stability of the electrode
Let you know when you have dangerous levels of AC to deal with
Can thrive in ALL saturated environments for their corresponding chemistry
Remain accurate for their lifetime
Can survive in all winter conditions
No need for antifreeze that could alter your readings
BORIN stands behind every STELTH reference electrode you buy:We test EVERY SINGLE reference electrode we make. For more details see testing criteria
You can track/trace any STELTH
Every STELTH is calibrated for the life of the cell
Our STELTH reference electrodes will work for years and remain stable indefinitely
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Soil
Concrete
Buried and Concrete Applications
Size
1.5″ (38.1 mm) width x 7.5″ (178 mm) length
Standard Lead Wire
20′ (15 m) of #14 (2.5 mm2) RHH-RHW wire (any length of wire available)
Material
Ceramic with Moisture Retention Membrane (MRM™)
Service Life
Minimum 30-year service life
Shelf Life
Infinite shelf life, infinite stability
Color Code
Palladium-Palladium Chloride / Pd-PdCl2 : orange ■
Copper-Copper Sulfate / Cu-CuSO4 : yellow ■
Silver-Silver Chloride / Ag-AgCl : blue ■
Zinc-Zinc Sulfate / Zn-ZnSO4 : red ■
Certified Potential Range
±5 millivolts vs. standard
pH Range
4–9 pH
Working Temperature Range
32°F to +176°F (0°C to 80°C)
Material Temperature Range
-60°F to +185°F (-51°C to 85°C)
Phone
(310)-822-1000
Email
borin@borin.com
Address
5741 Buckingham Pkwy. Unit B
Culver City, CA 90230
1.5″ (38.1 mm) width x 7″ (178 mm) length
Standard Lead Wire
20′ (15 m) of #14 (2.5 mm2) RHH-RHW wire (any length of wire available)
Weight of STELTH 2 (No Wire)
0.95 lbs.
Weight of Wire
10′ wire = 0.20 lbs
Weight of Product in Case
STELTH 2 + 20′ of wire x 12 = 22 lbs. per case
STELTH 2 + 50′ of wire x 12 = 30 lbs. per case
Dimensions of Case of 12
17.5” x 14.5” x 13.5”
Units Per Case
12 each per case
Minimum Order
1 case of 12