Koolance's inline flow meter provides a visual and electronic indicator of real-time coolant flow rate. Compatible with 1/4" (6mm), 3/8" (10mm), or 1/2" (13mm) ID G 1/4 BSP threaded nozzles.

A frequency circuit (sold separately) multiplies the RPM signal to allow it to be read by most fan tachometer headers (such as those found on ATX motherboards). This signal is intended to allow fan detection software (including BIOS) to enable the appropriate alarm or shutdown procedure if the flow meter impeller stops rotating. The "RPMs" represent approximate flow meter coolant in mL/min, and not revolutions.

Download Instructions

Flow rate range = 1.0-15 LPM (15.6-240 GPH):
Fluid temperature range = 0 - 70°C (32-158°F):
Maximum pressure = 6kgf/cm2 (85 psi):
Wire length including the frequency multiplier board is about 26" (66cm)|with product dimensions of approximately 1" x 1.9" x 0.75"|(2.5cm x 4.8cm x 1.9cm):
Materials:	nickel-plated brass and acrylic.

03-08-2013
Reviewer: Silent54 (15)
This worked well for a while but it quite working. It barely made 9 months. I expected it to last a lot longer than that.

09-29-2011
Reviewer: Pyrebuilder (26)
for someone who doesnt know all the info, and is worried a pump may fail, or a tube may kink, this is a must have. i have it hooked up to my CPU header so if flow stops, my computer shuts down. nice quality.

01-09-2011
Reviewer: Alex (6)
Purchased this elsewhere and it came with the digital meter for the same price (review above says it does not??). Can restrict flow a tad and if used in horizontal position can cause the turbine inside to produce inaccurate readings and possibly cause it to fail. When used with Everest/AIDA64 program software you can setup the program to shutdown the PC should there be no flow rate. This was the ONLY reason I purchased this item, because its digital. Solid product from Koolance and at a good price.

12-28-2010
Reviewer: DHL (9)
Very nice little turbine flow meter. Price is misleading because you must buy the electronic sensor pack to have it read out in your fan monitoring system. Readout is directly in cc/min on a standard fan speed indicator. Mine reads 8000 cc/min (8 liters/min) no problem. Have had the electronics intermittantly glitch for a second or so, but the flow turbine did not stop so this was a read error. I like the idea of monitoring flow rate directly instead of pump rpm, as you can get a flow blockage that won''t stop the pump, and flow to your water blocks is what counts.