Best Pressure Transmitters
The infrared sensing terminals can be mounted up to 300 feet apart and will send a signal back to the DCR-2500 receiver up to half mile away* anytime someone passes between the sensors. Enter your model number to make sure this fits.
Reviews
Find Best Price at Amazon"Makes no sense to me, you'd think with a broken beam kind of system, it would reliably trip every time a human sized thing walks past it, and it really blows my mind that at times it decides to not trip when a big ole car drives past it? I'd say it works reliably probably about 97% to 98% of the time, and the good thing about this, over the PIR sensors I've tried is it NEVER gives false alarms, so it is a great improvement over any PIR sensors I've tried... but I'm rating it only 3 stars because I'd expect this to work better since it's a broken beam system..."
"I have had the BBT-2500 sensors for a year now and this is what I have experienced: first, they are hard to "pair" until you realize that just because the power buttons light-up that doesn't mean the devices are turned on. I have an automatic gate nearby that has 12 volt power so I just ran wires to the transmitter and receiver to keep them charged through the dark winter months."
"Works well so far and I have had this for over 1 month."
"I have these installed across my driveway covering about 25 feet of frontage and along side a fairly busy road, maybe 4 feet off the shoulder."
"I have had to replace these 3 times now, The problem is not in the product but in the location of installation."
"Installed across our driveway and spaced about 40ft apart, and at a distance of about 100 yd to the receiver located just inside a window at the front of our house."
"Tried leaving them in the sun to charge assuming the batteries are dead, that did not help. There is nothing anywhere on the internet, or their web site accept very the very unhelpful, incomplete users guide."
"Put them up in July and in December they are no longer working."
WIKA S-10 pressure transmitters are precision engineered to fit most industrial pressure measurement applications. The compact, rugged design makes these instruments suitable for applications including hydraulics and pneumatics, vacuum, test equipment, liquid level measurement, press control, compressor control, pump protection and numerous other processing and control operations. The compact case is also made of stainless steel and is available with environmental protection ratings up to NEMA 6P / IP 68.
Find Best Price at AmazonWIKA S-10 pressure transmitters are precision engineered to fit most industrial pressure measurement applications. The compact, rugged design makes these instruments suitable for applications including hydraulics and pneumatics, vacuum, test equipment, liquid level measurement, press control, compressor control, pump protection and numerous other processing and control operations. The compact case is also made of stainless steel and is available with environmental protection ratings up to NEMA 6P / IP 68.
Find Best Price at AmazonBest Pressure Switches
Pressure from main blower actuates switch to operate Duct Booster fan automatically.
Reviews
Find Best Price at Amazon"No real issues there, although I had to relocate it to get a better stream of air (the initial mounting location would not trigger the change, probably due to a lack of adequate pressure). So I deducted two stars since most people will need those detailed instructions, as they are not electricians or HVAC contractors."
"You cut the white wire and attach each end of the white wire to one of the posts on the switch."
"If you have any concern about low pressure differential to trip the switch in the duct work where you are installing this, pick a better location with a higher pressure differential- the switch is not reliably as sensitive as I had hoped it was."
"I want to add a booster fan for the kitchen exhaust as the fan from the microwave is not powerful and a pretty long distance to the outside wall with the 4" pipe."
"#2 black wire common from house direct to fan. #3 connect line to "open" on switch back to white wire on fan to make the loop. #4 connect earth to switch box and duct fan. Turns fan on immediately after furnace kicks on."
"Placement is important, I tried using it where the booster fan is ( has to be upstream from the Booster fan ) but the pressure change in the duct was too low so it didn't work."
"I placed the switch downwind of the 1st floor damper near where the branch duct with the booster fan takes off."
"I moved it 18' from the Tjernlund DBF2 Dryer Duct Booster Fan and was too sensitive."
Best Pressure & Vacuum Gauges
Infrared thermometer for noncontact surface temperature measurement for use in monitoring electrical, mechanical, HVAC, and automotive systems. Measures temperature from -30 to 650 degrees C (-22 to 1202 degrees F) with an accuracy of + or - 1 degree C or + or -1.0% of the reading from 0 to 650 degrees C. Dual lasers rotate to pinpoint the edges of the measurement area.
Reviews
Find Best Price at Amazon"I use this device to determine the temperature of my cast iron pans when I use them for searing meats."
"Great little tool to check temps of various things."
"Works perfect."
"This is the real deal ."
"We use them to spot potential bat hibernaculums in the winter for protection."
"Good laser thermometer."
"This is a nice thermometer."
"Excellent tool for checking air vent temperatures for air conditioning work."