$200 - $300

1-Phase/Single-Speed Motor, 1/10 Hp, 115/230V, 50/60 Hz, with 6' Cord, 1725 rpm

Part Number: U107910PA

MH-45-KFA 45,000 BTU Kerosene Forced Air Heater by Master

The Master MH-45-KFA is an ideal forced air space heating solution for spaces up to 1,100 sq. feet. It utilizes Master's tried and true torpedo heater design, honed over the last 6 decades, and also comes equipped with the most modern safety features.

CSA Certified to run on Kerosene, #1 & 2 Diesel Fuel, JP8/Jet A Fuel and #1 & 2 Fuel Oil, the Master MH-45-KFA is a versatile multi-fuel heater.

Advanced Safety Features include high temperature limit shut off, flame-out fuel cut and a thermocouple.

The Master MH-45-KFA kerosene space heater is great for use in places such as construction sites, garages, workshops, warehouses, and barns.

• Operates on efficient, clean-burning kerosene/diesel
• Built-in calibrated air pressure gauge
• Easy lift handle
• Automatic safety shut off system
• power on/off switch
• fuel gauge
• extension chord wrap

103KA Handheld Conductivity Meter Kit by Jenco

Conductivity handheld meter with LCD display, rugged splash proof case and replaceable K-1.0 conductivity probe. Has cell adjust and automatic temperature compensation from 5 to 55°C. Uses one 9 volt battery, 50 hours typical usage on one battery.

Includes:

• 103 Handheld Conductivity Meter
• K=1 Conductivity Cell

• LCD display
• Conductivity cell adjust
• High stability
• Rugged case
• CEll constant k = 1.0

Part Number: 58L-490

7899 Combustible Gas Sniffer / Leak Detector (with Disposabble AAA Batteries) for detecting the presence of ANY combustible gases. (ex: Natural Gas, Methane, Propane, Gasoline, Kerosene, LPG, Hydrocarbons, etc.). Manual and automatic auto-zero, flexible probe, supplied with Carrying case, manual and charger by Seitron Americas

Features

• Durable, Accurate and Highly Sensitive
• Detect any Combustible Hydrocarbon Gases (e.g. natural gas, LPG)
• Displays Readings in PPM, %Vol, & %L.E.L.
• Fast Response Time
• Auto-Zero Drift Adjustment
• Audible and Visual Alarms
• 11" Flexible Gooseneck Probe
• Field Replaceable Sensors

GHS1035 Safety Banner 3' x 10' by GHS Safety

Highly visual banners are a perfect way to reinforce safety training to your employees. Measures 3' x 10', and comes with 1/4" grommets for easy mounting to any wall.

When prominently placed, these banners make an excellent reminder to employees recent training and work to keep up staff morale. Made from a thick and durable indoor grade reinforced vinyl banner material, banners come with 1/4" grommets for easy mounting. Intended for indoor use only. Custom banners available.

TT220SS Rigid Plastic Class 2.2 Non-Flammable, Non-Toxic Gases Placard (10.75" x 10.75") by GHS Safety

Placards are displayed on vehicles, tankers, and containers to identify the risk of products being transported. GHS Line of placards are manufactured to meet the UN specifications on the Transport of Dangerous Goods.

These placards are stocked in 3 materials. Paper Tag-board placards are a cost effective single use format. Rigid Plastic placards will withstand multiple uses even in adverse weather conditions.

Outdoor Grade Peel and Stick Vinyl placards offer a permanent marking solution and will withstand outdoor environments.

Old Part Number: Z105325MX82
New Part Number: Z105325PM82

2105528 DPD Free Chlorine Reagent Powder Pillows, 10 mL, pk/1000 by AquaPhoenix

For free chlorine determination by the DPD Free Chlorine method.
USEPA accepted for reporting for drinking water analysis using Hach Method 8021.
Range: 0.02 - 2.00 mg/L Cl2. Sample Size: 10 mL.
Pack of 1000 powder pillows.
Boric Acid free!

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

645NPT Dual Input Differential Manometer by Test Products International

Dual Differential Input Manometer with ± 29 psi range and 0.1 psi resolution. Seven units of pressure: inH2O, mbar, KPa, PSI, mH2O, mmHg, inHg, Auto power off, Record/Min/Max, Backlight display, Zero function, Trim mode to stabilize readings. 1/4" NPT fittings.

The TPI 600 Tuffman series is a hand held range Of pressure meters and can be summarized as follows:

• TPI 635 5 PSI pressure range
• TPI 645 30 PSI pressure range
• TPI 655 100 PSI pressure range

All of these models are dual input differential pressure meters with 7 selectable scales to choose from: mbar, kPa, PSI, inHg. mmHg,inH20, and mH20.

Features

• Differential input with + 29 PSI range
• Dual 1/4" NPT Fittings
• Seven units of measure (mbar, kPa, PSI, mmHg, inHg, mH2O, inH2O)
• Display - 4 digit dual line with backlight
• Smooth - Stabilizes display when measuring fluctuating pressures
• Data Hold - Freezes reading on display
• Min / Max - Records Min/Max readings
• Auto Off - Conserve battery power.

Standard Accessories (Included)

• 9V alkaline battery (A009A)
• Replacement tubing (A601)

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

Old Part Number: Z105325A
New Part Number: Z105325PA

MW806 pH/EC/TDS/Temp Portable 4 In 1 Logging Meter by Milwaukee

This Milwaukee High Range MW806 MAX pH/EC/TDS/Temp. 4-in-1 combo meter allows you to measure pH, EC (conductivity), TDS and Temp. with a single meter and one single probe.

WHAT PEOPLE ARE SAYING

• "Features look Great! Can't wait to order!
• "Great customer service, I have other Milwaukee meters."
• "These prices are unreal!"
• "Logging feature will be awesome!"

SUMMARY

pH and conductivity are critical for growers. pH can effect plant nutrient and water uptake and reduce the efficiency of fertilizer, herbicides and pesticides. Managing conductivity helps growers pinpoint fertilizer and other needs.

The Milwaukee MW805 MAX Combo Meter lets you easily and accurately test pH, conductivity and total dissolved solids (TDS) using a single meter and integrated probe.

Simple, portable and rugged. No more juggling multiple electrodes and wires. Automatic temperature compensaton included.

The MW805 MAX is the ultimate solution for pH and nutrient management.

DESIGN FEATURES

The design of the MW806 MAX is focused on simple operation and ruggedness. With a single probe, big screen, easy calibration, the MW806 is exceptionally simple to operate.

A tough meter build and a rugged but replaceable probe means that you can expect years of use.

The Milwaukee Combo meter offers:

• pH, conductivity / nutrient EC, TDS (ppt) with automatic temperature compensation.
• Selectable TDS factors from .40 to 0.8; defaulet value 0.50.
• Stability indicator prompting the user when the readings stabilize.
• Dedicated GLP key to store and recall data on system status.
• A replaceable, Amplified Combination pH/EC/TDS/Temp probe with a single 3 foot cable (1 meter) for easy use (MA852D/1 probe included)
• A cloth junction on the pH sensor to reduce contamination when measuring fertilizer solutions. Gel filled for long lasting measurments.
• A light weight and portable form factor at just 9.2 ounces (260 g) with battery and just over 3 inches wide.
• A large easy to read display.
• Factory calibration for Temperature and simple, highly accurate, single cell automatic, one point calibration for EC and an automatic up to 5 point calibration for pH.
• IP 67 rated rugged case built for field or lab applications.
• Specialized design for hydroponic, aquaponic, and greenhouse growers.

CARE AND USE

The High Range MW806 MAX Combo Meter includes both a pH and EC sensor in the MA852D/1 Amplified probe. Both need maintenance. Properly maintaining your probe will give you fast, accurate results for longer. All pH sensors have a limited life and response time gets longer with age. EC sensors are more robust but can still be affected by residue build up.

Here are our top four tips.
1. Always store with the cap full of buffer or storage solution not water.
2. Clean your probe regularly by soaking in cleaning solution.
3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH and EC sensor.
4. Gently stir the probe in the sample for a faster result.

3921 DO/Temperature Controller by Jenco

DO & temperature controller with 2 sets of On/Off relays, stored calibration data, backlit LCD display for DO and temperature, universal power supply 100 to 240 VAC and packaged in an easy to install plastic panel mount water resistant 1/8 DIN IP65 case. Uses Hamilton Company Oxysens and Easyferm DO electrodes.

• Easy to install 1/8 DIN plastic casing
• Clear LCD displays dissolved oxygen or temperature with backlight
• Calibration data is stored in memory and is ready for use on power up
• Universal power supply input from 100 ~ 240 VAC
• Automatic or manual temperature compensation
• Two sets of programmable on/off relays for DO
• CE and RoHS complain

98768-53 Traceable Excursion-Trac™ Datalogging Low-Temp Thermometer with Calibration; 1 Stainless Steel Probe by Digi-Sense

Easily monitor temperatures overnight or for any time period - minimum and maximum temperatures are stored until the memory is cleared. Set high and low alarms in 1° increments; alarm sounds when temperature rises above or falls below set points. The alarm tracking feature stores data for up to 10 different alarm events detailing when the alarm state occurred, as well as when the unit returned within range. Alarm state indicator includes visual LEDs, audio alerts, and flashing LCD segments.

Transfer data recorded in a CSV format to any computer via a USB flash drive - no software is required. Simply clear memory after downloading data to USB drive. Unit continues to record new data while downloading old data. Other status indicators include low-battery, memory full, USB data transfer, and active alarm state. All probes are attached to a 10-ft (3-m) microcable that permits a door to close on it.

Traceable® Products have an individually-numbered Traceable® Certificate provided with each unit, that assures accuracy from our ISO/IEC 17025:2017(1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Each product goes through an intense vetting process before it can carry the Traceable name, thus saving you both time and money by not having to calibrate separately.

Durable stainless steel probe withstands both low and high temperatures and are ideal for measuring temperatures of air, liquids, and semi-solids. Sensor stem measures 6.25"L x 1/8" dia.

KEY FEATURES

• Includes NIST-Traceable certificate from our A2LA accredited (1750.01) calibration laboratory
• Memory can be cleared after downloading data and alarm events
• Set limits for and store up to 10 unique alarm events
• Smart-Alarm™ with visual/audible alarm continues to alert even if conditions return to normal range
• Triple-display - shows high, low, and current temperature simultaneously
• Ideal for monitoring ultra-low temperature freezers

Includes

Pt RTD stainless steel probe with 10-ft PTFE cable, flip-open stand, hook-and-loop strips, magnetic strips, wall-mount receptacle, batteries, and NIST-traceable calibration certificate with data.