I've tried to provide a wide range of options below, and if I don't have what you need, I can probably tell you where to get it.  If you are a DIY Dude, just get the bare minimum WEL and build your network from scratch, otherwise the WEL Starter Kit may be the best for you.  One great thing about the Web Energy Logger (WEL) is that you can be as self sufficient as you want when it comes to doing it yourself. 

All the software you need comes included with every WEL.  This includes the monitoring software on the WEL, and an account on the WELServer.com website for display and logging purposes.

Here are the options and prices. Click any image for an enlargement.

	WEL Starter Kit Enc. (p/n WEL-SK-ENC) This is for someone who wants a turn-key monitoring system.  This includes the latest WEL 4.0 Processor (WEL) in a transparent enclosure with a plug-in power supply (WEL-PWR).  It also includes 10 Temperature Sensors and 40 feet of 24AWG twisted triad wire (BUS40-24AWG) suitable for the 1-Wire bus.  Each of these components are describe below with any associated documentation.   You can also choose from 6 different combinations of Plastic Encapsulated (TSENSE-ENC), or 1" Stainless Steel (TSENSE-SS1) temperature probes. The plastic sensors are great for measuring air temperatures, and the Steel ones are easy to strap to pipes for measuring water temperature. WARNING: Do NOT use the Plastic sensors where moisture or water can accumulate on the sensor or wire! Price: $525 each (+ tax in MD)   (Best value with a $25 saving) Choose Sensors BEFORE adding. 10 Plastic Sensors 8 Plastic, 2 Stainless 6 Plastic, 4 Stainless 4 Plastic, 6 Stainless 2 Plastic, 8 Stainless 10 Stainless Steel
	The WEL (p/n WEL) The bare minimum WEL purchase is just the WEL 4.0 Processor mounted in a custom transparent enclosure.  You don't need to purchase anything else from me.  I'll show you exactly what else you need to build your system, from wiring, to temperature sensors and Watt meters.   The WEL will come fully programmed and ready to post data.    Download the User Manual Price: $375 each (+ tax in MD)
	WEL Power Supply (p/n WEL-PWR) This is just a simple "Wall Wart" that has the correct voltage (9V) and current  (600mA) for the WEL.  The plug has been trimmed off and the wires are exposed for immediate attachment to the WEL. Price: $10 each (+ tax in MD)
	40' Bus Wire 24 AWG (p/n BUS40-24AWG) Three solid-copper 24AWG wires have been twisted together to make a 1-Wire bus that's well suited to the harsh conditions in a utility room.  In addition to the standard black and yellow bus wires, a red wire is also included for future expansion, to provide the power that some sensors require. Price: $15 each (+ tax in MD) 250' Reel: Bus Wire 24 AWG (p/n BUS250-24AWG) $80
	Plastic Encapulasted Temperature Sensor (p/n TSENSE-ENC) This Plastic-Encapsulated temperature sensor is great for compact installations. The face of the sensor itself is exposed through an opening at the front of the housing so it's also great for sensing air temperatures. The sensor has 24" flexible 24 AWG leads attached which enable it to be located in small places (like inside an existing thermostat housing). Small telecomm Tap-Splices are supplied with the sensor to easily add it to an existing 1-wire bus without stripping or soldering. NOTE:  See my instructions for installing these sensors. Note: this sensor should NOT be mounted where moisture can accumulate on its surface. Price: $15 each (+ tax in MD)
	Stainless Steel Temperature Sensor (Economy) (p/n TSENSE-SS1) This little stainless steel temperature probe is only 1.2" long with the DS18B20 element epoxied into the tip of the probe, resulting in a high quality sensor that is water proof and perfect for a wide variety of residential, commercial, and industrial applications. The sensor has 12" flexible leads attached for easy installation.  It can be clamped to a pipe for robustness. This sensor is 0.25" in diameter, so it's also ideal for inserting into a thermal well on a copper pipe.   Small telecomm Tap-Splices are supplied with the sensor to easily add it to an existing 1-wire bus without stripping or soldering. Price: $15 each (+ tax in MD)
	Potted Temperature Sensor (p/n TSENSE-POT) This Potted Sensor provides a low cost option for temperature monitoring. The sensor head has a diameter of only 0.25" and the length of the potted section is just over 1". The rugged jacketed cable is approx 3ft long. The epoxy is hardened and waterproof, and completely covers the sensor and solder joints, allowing this sensor to be used in harsh conditions. Although great for measuring water or air temperature, this sensor is not suitable for strapping to pipes for measureing water temperature, because thgere are no flat surfaces to ensure a good thermal coupling. Small telecomm Tap-Splices are supplied with the sensor to easily add it to an existing 1-wire bus without stripping or soldering. Price: $10 each (+ tax in MD)
	Stainless Steel Temperature Sensor (Rugged) (p/n TSENSE-SS3) This 3" long stainless steel temperature probe is 8mm in diameter and has a DS18B20 element connected to a durable jacketed cable with 2 heavy stranded conductors, all of which is completely epoxied into the probe, resulting in a high quality and rugged sensor that is water proof and perfect for a variety of commercial and industrial applications. Cable is approximately 3 feet long. Small telecomm Tap-Splices are supplied with the sensor to easily add it to an existing 1-wire bus without stripping or soldering. Price: $28 each (+ tax in MD)
	CR Magnetics: Current Switch (p/n CR9321-NPN) This item is an isolated current sense device, which can be used with the WEL Run Monitor inputs to sense when an HVAC device has been activated.  It's ideal for circulator pumps, GSHP's, heater elements and any device that draws more than 300 mA.  You just slip the Current Switch over one of the device's power conductors and connect the red and black wires up to the WEL.  The WEL can display if the device is on or off, and it can record the number of hours that the device is active each day and month.  Price: $23 each (+ tax in MD)
	1-Wire Combo Module. (p/n WEL-COMBO) 8 Stats + 2 Counters + Box $130.00 8 Stats + 2 Counters $120.00 8 Stats + Box $95.00 8 Stats $85.00 2 Counters + Box $75.00 2 Counters $65.00 The Combo Module has several flavors.  It can be used to monitor up to eight 24 VAC thermostat signals (stats), and/or two Pulse Inputs, plus there is an optional enclosure. All 8 Thermostat inputs are optically isolated from the 1-wire bus, and each other.   The WEL will register a '1' state when 12-24 vac is present across a pair of input screw terminals.  Each input draws only 7mA from the 24 vac signal line it is monitoring.  This board does NOT generate the 24 vac, it simply monitors an existing control signal.  An input might be connected across the C and Y1 lines of a HVAC unit's controller board to detect a Low Cool call.  Installation can be tricky, so read the online manual, for more details. The Pulse Counter option adds two high speed counters (up to 300Hz) which can be connected to any switch closure or solid state pulse output.  These are great for Watt-meters and flow-meters. Price: Depends on options.  See pull down list above.  Make selection before adding to cart. (+ tax in MD) Note: These are made to order, so shipping may be delayed by a day or two.
	1-Wire Remote Run Monitor. (p/n DIGIN-RTI) This tiny module can be used to read any contact closure (or optical switch) and feed the open/closed status onto the WEL's 1-wire bus.  This means you are not limited by the WEL's 8 on-board run monitor inputs.  You can add as many inputs as you like, wherever you like.  The Ready To Install (RTI) version of this board comes with two pairs of wires attached.  One black/yellow pair is used to connect to the 1-wire bus, and the other black/red pair is used to connect to the switch to be monitored.  The module is sealed using Heat-Shrink. (schematic) Price: $20 each (+ tax in MD)
	1-Wire Remote Current Switch (p/n WEL-CS) This item combines a CR Magnetics' current switch with one of my 1-wire Remote Run Monitor module.  This enables you to monitor the operation of devices via the 1-Wire bus, without having to run lots of individual wire pairs.  Just string one long 1-wire bus, and attach these current switches where you need them.  The picture shown here is before the final heat shrink is added to the 1-Wire Remote Monitor module. Price: $43 each (+ tax in MD)
	DIY Temperature Sensors (p/n TSENSE-5DIY) These are raw un-mounted DS18B20-PAR temperature Sensors ICs.  If you have plenty of time and a steady hand, you can wire and mount these sensors yourself.  Build you own custom temperature probe.    Note: these are the Parasite-Power version of the chips that only require two terminals to be connected. Price: $20 for a pack of 5 sensors (+ tax in MD)
	DIY 1-Wire Remote Run Monitor. (p/n DIGIN-DIY) This tiny module can be used to read any contact closure (or optical switch) and feed the open/closed status onto the WEL's 1-wire bus.  This means you are not limited by the WEL's 8 on-board run monitor inputs.  You can add as many inputs as you like.  The Do It Yourself (DIY) version of this board has no wires attached, so soldering skills are required.  The photo shows a strip of 10 boards. (schematic) Price: $14 each, or $120 for 10 Units (+ tax in MD)  10 x DIY 1-Wire Remote Run Monitor. (Quantity Discount)

Please call or email me if you need information about stock, or help with an order.

Phil Malone	aka: Mr. OurCoolHouse.com
Phone:	301 387-2331	(9:00am to 9:00pm Eastern Time)
Email:	webmaster(at)OurCoolHouse.com	...Replace (at) with @
US Mail:	PO Box 501 Mc Henry, MD, 21541
Shipping:	124 Cherry Heights Lane Mc Henry, MD, 21541

Note: I'm trying to make it possible for people to build their own monitoring systems without requiring a lot of nitty-gritty technical knowledge, but I am expecting the average user to be somewhat technical, with an eagerness to learn more about their particular system.  This is consistent with what I've discovered when dealing with people on my site.  The ones considering energy efficiency, or alternative technologies are often willing to get a bit more "involved" with the process.  And it pays off in the end.

So, if you're considering installing a Web Energy Logger in your new home or business, feel free to call or email me to discuss your thoughts.  It's easy enough for me to ask you a few questions on the phone and help you assess your need, rather than you having to figure it all out for yourself.  It also helps me to be able to predict likely orders, and make sure I have stock on hand. 

Phil.

The Web Energy Logger is an Internet Appliance that monitors a 1-wire sensor network, and posts live data to a web site for display and analysis. The WEL was designed for people interested in monitoring the energy distribution of their own homes or businesses. For more background, visit the WEL homepage. ©2006-2009 Phil Malone - - www.OurCoolHouse.com