Scad Sensor

Monitoring the Black Water Tank

I have a 20 gallon black water holding tank that has always required a very manual inspection process. I would have to use a flashlight to inspect under the v-berth to see if I could spot the tank level. Never a plesant job.

I installed a Scad TM1 monitoring system that lets me check the level from inside the head with the push of a button. The system uses SCAD's external stick-on tank level sensors that cannot get fouled. The monitor automatically checks and alerts when liquid levels are critical. This has required a lot of calibration so we are watching levels closely until we're completely confident.

There is a visual alarm that can be used to check the tank level. I've NOT installed the audible alarm option. There is a power wire that provides 1 Amp at battery voltage which can be set to trigger the alarm.

Data Sheet

Refrigeration

A built-in chiller, a Yeti cooler and now an actual fridge/freezer!

I recently purchased a Alpicool C22 Refrigerator from Amazon. It plugs into 120VAC shore power at the dock and runs off 12VDC underway. It mostly gets 5 star ratings and I understand that customer service is excellent.

It plugs into 120VAC shore power (with it's own inverter) at the dock and runs off 12VDC underway. My hope is the solar cells will continue to keep the secondary battery bank charged with enough juice to keep the unit cold in the summer.

SPECIFICATIONS:

• DIMENSIONS: 12.62"D x 23.5"W x 13.19"H
• STORAGE SPACE: 23 Quart(22 Liter) capacity ,fits 30 12oz cans
• LCD DISPLAY: USB socket, ice cube tray and built-in LED light
• VOLTAGE: 12/24V DC and 100-240V AC
• FREEZES WITHOUT ICE: -4°F (-20°C) deep chilling down performance, can be a fridge or freezer.
• BATTERY PROTECTION: Temperature memory function, 3 levels of battery protection
• INSULATION: High Density Foam
• WEIGHT: 24.2 pounds
• RATED POWER: 45W and draws 3 amps
• TEMPERATURE RANGE: -4℉～50℉
• NOISE：≤45dB
• DRAIN:

TEMPERATURE RECOMENDATIONS (degF):

• FRUIT: 50
• BEER: 42
• ICE CREAM: 0
• FISH: -4
• MEAT: -4

It has a Bluetooth indicator (and an app) but this is not been implemented on the smaller models.