MEASUREMAN Tridicator, Thermo-Manometer, 2-1/2", Silicone Oil Filled, 0-160psi/30-250 deg F, Stainless Steel Case, 1/4" NPT Lower Mount Pressure Gauge

i use these for pipe lamps. The cool thing about this gauge is that there is a temperature gauge on the bottom part of the valve that works indoors. The gauge is good quality. I will purchase additional gauges for projects.

Haven’t used it yet but seems high quality

I used this gauge for my El Camino, screws right into the intake manifold. its very reliable and within 2 or 3 deg. accurate, you can judge the accuracy by when the engine is cold, it reads the current out door temperature. The pressure gauge works good too. its very handy because I dont need to look inside the car when Im working on the engine. I calibrated the temp gauge inside the car to this gauge on the engine, it reads according to my thermostat temp so I know it working right.

Tool is fine. Needed it for work which required professional calibration at an independent lab, and this thing passed with flying colors so it's accurate.

Keeps temp great for a longer time with the oil in it!

Cool little gadget for my rv for campgrounds I can always test the pressure to know what ya got because sometimes you just never know the pressure or the quality of water anywhere! But that another subject.. cool little gauge though

i'm sorry, the man who i paid for it is using it.

Great value

S'ait un gage pratique , on peux lire avec 2 indicateur.

Good quality and exactly as shown. Prompt delivery

I’m using this gauge on my geothermal system, which preheats a water reservoir, basically a passive boiler setup, before entering the on-demand water heater. The tridicator gives me both pressure and temperature at a glance, which makes it very handy for quick checks. Solid construction overall. The stainless-steel case looks durable, and the brass wetted parts are fine for water and glycol. Not for anything corrosive, but perfect for a drionkeable water system like mine. I used a ¾ NPT port with a reducer to ½ NPT, no issues sealing; I prefer RectorSeal paste over PTFE tape since cheap brass fittings tend to leak with tape nowadays. The 2½-inch dial is large enough for occasional reading, and both scales are clear. The temperature scale in °F is ideal for boiler applications, even though I normally work in °C, boiler is an exception and it’s easy to interpret in this context. Pressure range (0–160 psi) is higher than most hydronic systems, but it fits my setup where pressure runs around 80–100 psi from the city. The temperature range (30–250 °F) covers everything I need for monitoring the tank output, with 140F just in the middle. Lower mount design is practical, I just placed the tee fitting accordingly. Threads are clean and seal well with paste. No calibration needed, and it reacts fast enough to show changes. Reliable for occasional monitoring of pressure and temperature in heating or water systems.

I’ve used this Measureman tridicator/thermo-manometer for checking system pressure and temperature, and it’s been accurate and easy to read. The gauge markings are clear, and having pressure and temperature in one unit is very convenient. It feels well built and installs without much hassle. Readings have been consistent, which gives confidence when monitoring the system. Overall, it’s a reliable, practical gauge that does exactly what it’s designed to do.

Zero issues - this is simply an accurate, easy to read display of both pressure (measured in PSI) and temperature (measured in Fahrenheit). I love the simplicity of the gauge. Straight-forward black numbers on a white background. PSI in 5 pounds per tick on the scale. Temperature is 5 degrees Fahrenheit per tick. A big green scale for the pressure and a smaller, red scale for temperature. A single 1/4" NPT connection is at the bottom of the gauge. AND IN BRASS! See? Well thought out design and construction... I see that Measureman (the manufacturer) also makes the exact gauge in an oil-filled unit. Bottom Line - A great, simple gauge, making it quick to monitor both line or tank pressure, as well as keeping an eye on the temperature.