What four readings does this meter provide?

It's a 4 in 1 PH/EC/TDS/TEMP Combo, covering the core parameters most growers check on nutrient solution and runoff. That focused parameter set is what the product name specifies.

Is this meter waterproof?

Yes, it carries the same IP-67 submersible and floating rating as HM Digital's other professional handhelds. That housing rating holds up to regular dipping into nutrient reservoirs and runoff trays without added protective gear.

How is this meter calibrated?

It uses push-button digital calibration with automatic temperature compensation (ATC). That method lets you calibrate to any point within the meter's range rather than a fixed single-point calibration.

What batteries does this meter use?

It runs on 2×AAA batteries, a standard, widely available format. That makes battery replacement simple compared to meters requiring specialty cells.

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HM Digital 4 in 1 PH/EC/TDS/TEMP Combo

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$104.89 $209.36

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HM Digital 4 in 1 PH/EC/TDS/TEMP Combo

Name: HM Digital 4 in 1 PH/EC/TDS/TEMP Combo
Brand: HM Digital Inc
SKU: DILCOM300L
Price: 104.89 USD
Availability: InStock

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Product Code:

DILCOM300L

$104.89 $209.36 -50%

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Description
Features
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Waterproof 4-in-1 pH/EC/TDS/Temp Combo Meter

Some grow rooms need one meter that covers the core nutrient-testing readings without extra parameters to configure. The HM Digital 4 in 1 PH/EC/TDS/TEMP Combo is built around exactly those four readings in a single waterproof handheld.

Sold as one HM Digital 4 in 1 Combo meter.

Key Features & Benefits

4-in-1 pH/EC/TDS/Temp readings — the core parameters growers check on nutrient solution and runoff.
IP-67 waterproof, submersible, and floats — rated for hands-on use around tanks and reservoirs.
Push-button digital calibration with ATC — calibrate to any point in range with automatic temperature compensation.
±2% full-scale accuracy — across the meter's combined measurement ranges.
2×AAA battery powered — standard, easily replaced battery format.

Who Should Use the HM Digital 4 in 1 Combo

This fits growers who want one waterproof meter covering pH, EC, TDS, and temperature specifically, without needing additional parameters in a single handheld.

About the HM Digital 4 in 1 Combo Meter

This combo meter covers pH, EC, TDS, and temperature in one waterproof handheld with push-button digital calibration.

Frequently Asked Questions

What four readings does this meter provide?: It's a 4 in 1 PH/EC/TDS/TEMP Combo, covering the core parameters most growers check on nutrient solution and runoff. That focused parameter set is what the product name specifies.
Is this meter waterproof?: Yes, it carries the same IP-67 submersible and floating rating as HM Digital's other professional handhelds. That housing rating holds up to regular dipping into nutrient reservoirs and runoff trays without added protective gear.
How is this meter calibrated?: It uses push-button digital calibration with automatic temperature compensation (ATC). That method lets you calibrate to any point within the meter's range rather than a fixed single-point calibration.
What batteries does this meter use?: It runs on 2×AAA batteries, a standard, widely available format. That makes battery replacement simple compared to meters requiring specialty cells.

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