Question 1

Will this work on Presta and Shrader valves?

Accepted Answer

Yes. The yellow slider on top has both Shrader and Presta positions. It's easy to slip on and off without losing a significant amount of air, and the readout is very visible. The head swivels to make the gauge fit comfortably in your hand no matter what the angle of the valve. I've had this gauge for a year and definitely recommend.

Question 2

How does the air release reading work on this?!  i press the release button and air is escaping but the psi doesn't lower on the readout.

Accepted Answer

You have to be in the correct mode for this.  After first reading the pressure, press the button with the circle on it labeled "tune" then use the yellow air release button to let out air and the unit will automatically read the new pressure.

Question 3

Does this work correctly with presta valves? i know the description says so, but other gauges also claim that and do not perform well with them

Accepted Answer

Yes, it works with presta valves.  There is a setting for presta and a setting for  schrader.  Testing on a presta requires you to quickly get the guage on the valve.You must also remove the gauge quickly. It would be nice to have a presta guage that worked as easily as the guages do on the scrader valves, but I haven't found one.  This guage works fine on both types of valves

Question 4

Does this gauge read low enough for Fat bikes 4-7 psi?

Accepted Answer

It does read in the single digits but no decimals. So, if you're looking to fine tune to 1/2 or 1/4 psi increments, it isn't that precise. The Accu-Gage analog units can do that. However, I have one the goes to 15 psi max and reads in 1/4 psi increments and one that goes to 30 psi max, 1/2 psi increments and they read 1 full psi apart from each other. So, perhaps the fractional readings are pointless.

ASIN	B0051LQ0X4
Best Sellers Rank	#5,277 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 in Bike Shop Tools
Brand Name	Topeak
Customer Reviews	4.4 4.4 out of 5 stars (11,217)
Global Trade Identification Number	00883466003323, 04712511824537
Included Components	Gauge
Item Dimensions	4.09 x 1.77 x 1.38 inches
Item Type Name	Shop Tools
Item Weight	65 g
Manufacturer	Topeak
Material Type	Plastic
Model	60100005
Number of Items	1
Number of Packs	1
Part Number	TSG-02
UPC	883466003323
Unit Count	1 Count
Warranty Description	2 Year Manufacturer

SmartGauge D2 Digital Tire Pressure Gauge – Presta/Schrader Compatible, 250 Psi/17 Bar, Precision Air Pressure Reader with LCD Display for Bikes, Motorcycles & Sports Equipment

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