HM Digital HM Digital Pro Series Pen style pH/TDS/EC/Temp meter

HM Digital Pro COM-300 pH TDS EC Temp Meter

Sale Price:

~~$199.99 USD~~ $169.99 USD$199.99 USD

Pay as little as
$16999/mo

for a term that suits you, up to 36 months.

🍃 Earn 170 points for shopping and get $1.69 off your next order. Join Harvest Club for free

MODEL: HM-COM-300

Free shipping over $50
We price match!
Inquire for bulk pricing

Expert help +1 (360) 800-5535
Chat with our team

Shop
Description
Features
Highlights
Specifications
Reviews

Description

HM Digital Pro COM-300 pH TDS EC Temp Meter

The HM Digital COM-300 allows you to keep track of the water quality used in gardening in a more portable package.

Designed for hydroponic growers, the COM-300 allows you to track pH, EC, TDS, salinity, and temperature levels in different applications so that your plants grow on the best medium.

Non-hydroponic growers will benefit from the COM-300, as you can use this device in laboratory applications.

Features

Variable Applications

The COM-300 allows you to test water samples used in different applications, such as hydroponics, water treatment, and laboratory usage.

Easy to Read

The COM-300 features a large LCD that makes checking the meter easier, despite its compact form factor.

Energy-Saving

To help you save on power, the COM-300 shuts down after being idle.

Battery-operated

You can run the COM-300 with a pair of AAA batteries.

Highlights

Continuous pH/EC/TDS/Salinity/Temperature monitor
0 – 14 pH pH Range
0 – 9990 µS; 0 – 9.99 mS EC Range
0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale) TDS Range
0-55 °C; 32-130°F Temperature Range
Automatic Temperature Compensation
Data Hold Function
Large LCD
Digital calibration
Replaceable sensors
IP65-rated
Auto-shutdown

Specifications

pH Range:	0 – 14 pH
EC Range:	0 – 9990 µS; 0 – 9.99 mS
TDS Range:	0 – 8560 ppm (0.7 Scale); 0 – 5000 ppm (0.5 Scale)
Temperature Range:	0-55 °C; 32-130°F
pH:	0.1pH
EC	0 – 999 : 1µS 1000 – 9990 : µS 0- 9.99 mS :0.01 mS
TDS	0 – 999 : 1ppm 1000 – 9990: 10 ppm
Temperature	0.1 °C/°F
Accuracy:	+/- 2%
EC to TDS Conversion Factor:	Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user.
Probe:	Detachable platinum electrodes & pH glass sensor with reference tube electrodes
Housing: IP-67	Waterproof (submersible; floats)
Power source:	2 x Triple A (AAA) included
Dimensions:	18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight:	101.5g (3.6 oz)

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

Most orders are processed within 24-48 hours after being placed.

Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more