$200 - $300

3661 pH/ORP Controller/Transmitter Voltage Output, LED Display by Jenco

pH, ORP, Temperature In-line Controller. 1/8 DIN, RoHS compliant, panel mount pH/ORP/Temp controller with 2 sets of programmable on/off relay and backlight. Extremely price competitive.

• Easy to install 1/8 DIN plastic casing.
• Clear LCD displays pH, mV or temperature with backlight.
• Universal power supply input from 100 to 240 V AC.
• Automatic buffer recognition of US and NIST buffer sets. Calibrated data is stored in memory and ready to for use on power up.
• Automatic or manual temperature compensation.
• Displays absolute and relative ORP.
• Two sets of programmable on/off relays for pH or ORP & Isolated and reversible
• 4 to 20 mA current output for pH or ORP allows it to be used as a proportional output.
• CE, RoHs compliant.

*Please note we can only ship RKI products to customers within the United States

*Please note we can only ship RKI products to customers within the United States

90131-04 Solar-Powered Adjustable-Angle Celsius Thermometer; 4" L by Digi-Sense

View readings from almost any angle by simply adjusting the angle of the head. Three-inch diameter adjustable head has an easy-to-read LCD. Requiring no batteries these thermometers are ideal in pilot plant or research and development applications where exact readings are required. The safety circuit prevents false readings. Each thermometer is housed in a weather-resistant 304 stainless steel (SS) case. Stem is 304 SS. An acrylic lens protects the face. To further protect thermometer order a thermowell from page 1052. Simply match the stem length to the probe depth "A" for the thermowell.

WD-27508-30 Cole-Parmer® pH Electrode Refillable Double-junction for Orion A Series Meters by Oakton

Epoxy-body pH electrodes compatible with Orion A-Series meters.

Part Number: G1053250PA

7710 7710 Rechargeable Hard Hat Safety Light, Cord Free, Lightweight by Western Technology

The 7710 - HALO LED Hard Hat Light is a Personal Active Safety System that attaches to any hard hat and produces a ring of light around the wearer enabling him or her to See and Be Seen in all directions at all times. The Halo was specifically designed for people working in tough environments.

*Includes 1 x 18650 Rechargeable Lithium-Ion battery.

Features

• Lightweight and cord-free
• Visible over 1/4 mile away in all directions at all times
• Powerful flood task light for improved work efficiency
• Fully illuminates the task area out to the visual periphery
• Eliminates shadows no matter where you move
• Four light modes: Halo, HI-Alert, Task, Dim
• Built tough to survive in rough work environments
• Rechargeable battery runtime of 5.5-34 hrs (mode dependent)
• Connects securely to any hard hat
• IP Rating of 67 to protect against dust, dirt, and water
• Easy single button functionality
• One year warranty

2028 Compact Viper XS 4.5 mm 50 foot by Wohler

The Wohler Viper System is a uniquely designed line of various sized rods for professional use when sweeping chimneys, ventilation systems, duct work or stoves. The viper rods are made of a central fiberglass core with plastic, protective cover. The rods are available in different lengths and strengths to provide you with the right combination of flexibility and length to cover a broad variety of cleaning applications.

From our thickest 4.3" Wohler Viper XL to our most flexible 1.7" Wohler Viper S and the Wohler Viper M PLUS with its digital distance measurement, there is a wide selection of threaded or star brushes that you can use for the respective cleaning. The continuous rod design housed in either a free standing or hand held rotating basket provides easy operation that saves you time, effort and money.

• GRP rod with abrasion-resistant PA-jacket and length marking
• Provides splash protection when inserting the wet GRP rod
• Ergonomically shaped handle
• 2 coupling brackets – for right- and left-handed users
• Fits in the Wohler tool carrier and backpack measuring case
• For mounting HT mini-hole stars and HT tube brushes

Additonal Information

• Wohler Viper S
• Length marking
• Stainless steel end pieces M5
• Protection tube (without stars and threaded brushes)
• GRP rod 0.18" / 50'

8500 CDL 110 CO2 Monitor by Wohler

The Wohler CDL 210 CO2 data logger and the Wöhler CDL 110 CO2 data monitor are CO2 measuring devices (colloquially also called CO2 traffic light) for continuous monitoring of the carbon dioxide concentration (in ppm) and other air quality factors.

Determination of the indoor air quality through combination of measurement and identification of:

• The CO2-concentration
• The air temperature
• The air humidity

For CO2-monitoring of:

• Housing spaces (comfortableness, humidity problems, etc.)
• Conference rooms and lounges (e.g. schools)

BPU12001 Peristaltic Pump 120ml for IntelliDose by Bluelab

The 120 ml peristaltic pump is a perfect solution for growers. Deliver nutrients, additives and pH solution easily.

• Easy to install and maintain, peristaltic pumps are the easiest way to deliver nutrients, additives and pH solution to your reservoir.
• These pumps mount on the wall, above the reservoir.
• Automate dosing and watering with accuracy and precision.
• The Bluelab single peristaltic pump helps you manage and maintain all the essentials your crops need to thrive.

• Rated at 120 ml/min
• Runs on 24V DC
• Pressure roller (2H+2R)
• PP made NPT fitting x2
• ABS enclosure x1
• DC power wire with 200+1800 mm(L)
• Autogrow Rating Label
• 0.25" in/out tubing