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Stops Pipe and Valve Freeze Down to -40°F
This facilitates a free-flowing air current that saves you from unneeded fan speed increases and higher energy costs
or in-furrow
swimming pools
Apera Instruments GroStar GS3 EC Pen Mylar & Reflective Coverings Stops Pipe and Valve FreezeLab grade instruments designed specifically for growers! The GS3 EC Pen includes: 2. 77 EC calibration solution (50 ml bottle) Measures conductivity EC, PPM (500), PPM (700) and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Titanium alloy sensor designed for high accuracy EC measurement Easy to use design and fast calibration adjustment Large 3 color backlit screen gives you clear
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