freeze indicators for sale, brand-new and used.

The Model C-30 is a differential temperature control for use with solar DHW or space heating systems. The C-30 output operates a pump or fan to perform solar collection. Standard features include a field adjustable storage high temperature limit (105 – 212 F), and field selectable Recirculate freeze protection.

FIRE RESEARCH CORPINSIGHT ULTIMATEDIGITAL FLOW METER AND PRESSURE INDICATOR KITNEW IN ORIGINAL BOXWITH ORIGINAL PLASTIC WRAPPING MSRP: $1,247.00SAVE OVER $600!!

Product Description The i-Link series 5-zone hydronic radiant floor heating switching relay for pump / circulator control is operated by low voltage thermostats or any other low voltage controllers having an SPST switching action. The i-Link controller provides intermediate switching to permit up to 5 circulators and a boiler operating control in a multi-zone hydronic heating system. Intelligent Linking System (i-Link) allows unlimited zone expansion with additional i-Link controllers.

The Fowler Z-Height E chrome-plated electronic height gauge is precise to 0.0005" (0.01mm), and has a high-contrast LCD readout, a large, hand-operated feed wheel, a carbide-tipped scriber, and a positive lock. A hand-operated feed wheel raises and lowers the gauge on the beam with smooth, even travel, and is selectable for coarse or fine feed. The gauge has a hold function to freeze recordings on the 11mm display, as well as a zero setting function.

This Cold Shot "Portable" water chiller is in excellent shape and was removed in perfect working order. The unit was used in a yogurt shop in which it chilled the water lines for 8 yogurt machines. This machine is a 7.5 ton 90,000 BTU per hour system.

This listing is for a Radio Shack Digital-Display Sound-Level Meter Catalog 33-2055 What you will get 1 Radio Shack Digital-Display Sound-Level Meter Catalog 33-2055 1 Case 1 Printout of the instructions This is an Radio Shack Digital-Display Sound-Level Meter Catalog 33-2055.&nb

451P Pressurized ?R Ion Chamber Radiation Survey Meter 451P - DE-SI-RYR With New Calibration from Fluke Aug/Sept 2015 451P Pressurized ?R Ion Chamber Radiation Survey Meter The auto-ranging 451P features a pressurized ion chamber, providing enhanced sensitivity (µR resolution) and improved energy response to measure radiation rate and dose from x-ray and gamma sources. Origin

7,800 gallon vertical tank. Black vertical storage tanks are manufactured using resins that meet FDA specifications for the storage of potable water. The black color limits light penetration which reduces the growth of water-borne algae.

8,400 gallon vertical tank. Black vertical storage tanks are manufactured using resins that meet FDA specifications for the storage of potable water. The black color limits light penetration which reduces the growth of water-borne algae.

9,000 gallon vertical tank. Black vertical storage tanks are manufactured using resins that meet FDA specifications for the storage of potable water. The black color limits light penetration which reduces the growth of water-borne algae.

12,000 gallon vertical tank. Boyd's Equipment Inc. 7154 Canyon Dr.

New, It has never been taken out of the original packaging.

Tektronix WFM700 in excellent cosmetic and working condition. This unit has the touch screen option. Recently removed for a system upgrade.

New PSG Controls TDMHP24AH12B Thermostat, digital, non-programmable, Medallion service watch series, 2H/1C, C/O/H-A/O, PSG Controls

Brand new in box. This model is HEAT ONLY24 VAC, 1 AMPSingle Stage Heat5/2 Day Programmable, 4 Settings/DayHardwire, BackLit DisplaySystem Switch: Heat-OffAdjustable Cycle RateTerminals: R C W BColor: White Medallion digital controls, depending on model, are battery powered or hardwired.

Your meter also has these features: 3-Digit Liquid Crystal Display - Makes it easy to read sound measurements. 21-Dot Analog Bargraph - Gives you a visual representation of the measured sound. Mode/Condition Indicators - Show you the current mode and status of the meter.