Hanna Marine Monitor

Perfect for saltwater applications. This vertical mount unit can be used to continuously monitor at-home saltwater aquariums and reef tanks, public aquariums, saltwater mixing stations, and marine aquaculture facilities.

Keep your saltwater in check with our Marine Monitor (HI981520):

Quick at-a-glance readings for pH, salinity, and temperature
Easy-to-use and maintain with simple navigation
Built-in alarms alert you when parameters are out of range

Convenient and User-Friendly

Equipped with a simple user interface. Results are displayed on a large, easy to read LCD screen. Users can choose their desired units for salinity (ppt, PSU, Specific Gravity (S.G.) and temperature (CÂ° or FÂ°).

Vertical Mount Unit

Monitor can be affixed to the aquarium tank wall.

Suction Cup with Clips

The probes can be installed/immersed directly in an aquarium tank (with supplied suction cups) and are designed to continuously monitor pH, salinity, and temperature levels.

Two Alarm Operating Modes

A high/low value can be configured for each parameter.

High/Low Alarm

Users can be alerted when a measured reading exceeds or drops below the set high/low value.

Visual and Audible Notifications

Displays warning messages and a sound signal is generated when an alarm is triggered. This notifies you when readings are outside of supported ranges.

pH Electrode (HI1286)

Supplied with a pH double junction electrode with a PEI resin body. This makes the pH electrode resistant to many aggressive chemicals. It is also easy to clean and less susceptible to clogging for fast and stable pH readings.

Fixed EC & Temperature Probe

Attached to the monitor, this two-electrode conductivity probe features a built-in temperature sensor at the tip of the EC sensor. This allows for rapid and accurate salinity and temperature readings.

Extended Cable Length

Each probe features a 2 m (6.6â€™) cable length for extended distances between the monitor and the saltwater sample.

Specification Name	Detail
SKU	HI981520-01
pH Range	0.0 to 14.0 pH
pH Resolution	0.1 pH
pH Accuracy (@25Â°C/77Â°F)	Â±0.2 pH
Temperature Range	0.0 to 50.0 Â°C (32.0 to 122.0 Â°F)
Temperature Resolution	0.1 Â°C / 0.1 Â°F
Temperature Accuracy (@25Â°C/77Â°F)	Â±0.5 Â°C / Â±1.0 Â°F
Calibration	pH Calibration: Manual or automatic two-point calibration in 7.01 and 10.01 pH; ppt Calibration: Automatic, single point in 35.00 ppt; Temperature Calibration: Automatic, 5 to 50 Â°C (41 to 122 Â°F)
Alarms	High or Low with Enable or Disable option
Power Supply	12 VDC adapter (included); 115-230 VAC
Casing	IP65 ingress protection
Environment	0-50Â°C (32-122Â°F); RH max 95%, non-condensing
Dimensions	125 x 185 x 38 mm (4.92 x 7.28 x 1.49â€)
Weight	300 g (10.6 oz.)
Ordering Information	HI981520 is supplied with HI1286 pH electrode, attached conductivity and temperature probe, pH 7.01 buffer solution, 20 mL sachet (2 pcs.), pH 10.01 buffer solution, 20 mL sachet (2 pcs.), 35.00 ppt salinity calibration solution, 20 mL sachet (2 pcs.), electrode cleaning solution, 20 mL sachet (2 pcs.), suction cup with clip (2 pcs.), self-adhesive fastener (2 pcs.), 12 Vdc power adapter, probe quality certificate, instrument quality certificate, quick reference guide with QR code and URL link for manual download.
Recommended Probe	ph: HI1286; EC: Attached