HM Digital pH/TDS/EC/Temp Meter Model COM-300

HM Digital pH/TDS/EC/Temp Meter Model COM-300

Marsoni

M251S

$163.15

Get it in 3 business days with 1 day shipping. Friday, May 29

HM Digital pH/TDS/EC/Temp Meter Model COM-300The COM 300 is an advanced waterproof combo meter with superior accuracy. The meter measures four parameters: pH, electrical conductivity (EC), total dissolved solids (TDS) and temperature. Features include 2 different conductivity conversion factors to convert EC to TDS using the 0. 5 (NaCl) or 0. 7 (442TM), as well as selectable modes for measurements in the S, mS and ppm scales. The meter incorporates automatic temperature compensation (ATC) to

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My dog loves this bed, I have one at home for him and one in my office at work (in pic). He sleeps so soundly on it. He’s about 7 lbs and it’s a great size for him, he likes to stretch out when he sleeps. It’s a simple, comfy bed good for dogs about 5-12 lbs. You may want to go one size bigger if your dog is 13-22 lbs.

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Reviewed in the United States on November 25, 2025

Verified Purchase

Anthony Ingram

Cuba, US

★★★★★ 5

MY DOG LOVES IT

Size: 20.0"L x 20.0"W x 6.0''TH, Style: Round, Pattern Name: Bed

MY CHIHUAHUA WON'T GET OUT OF THIS BED! she loves it! from the first moment we brought it in and put it on the floor. she gently scratches at the sides and cuddles in with her blankey and likes she's not there. ohhh... great value for the price! nice size, big enough for both of my chihuahuas to lay in comfortably. soft, but very sturdy sides, the bottom is fluffy, padded very well. the outside bottom, there is a non stick covering so the bed doesn't scootch around on tile floor, it stays put.

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Reviewed in the United States on January 28, 2026