Monitor and control up to 4 Tanks or Batteries or combination of both. • Back-light on or off. • Name individual tanks/batteries i.e. Fresh Port, Black, Grey or house, aux battery or as required. • Attractive blue LCD display with white text for easy to read display. BATTERY • Battery Monitor (BAT-100) monitors 0-30 volt DC. • The TD 4000 can monitor up to 4 batteries. Add a BAT-100 for each battery. In addition to accuracy and reliability the TD 4000 comes standard with many intelligent features to measure up to four tanks, four batteries, or a combination of both. The Smartswitch TD 4000 tank sensor is suitable for diesel, petrol, grey, freshwater and black tanks.* It is suitable for all tank construction materials including stainless steel, plastic and fibreglass. Simple to install, the TD 4000 comes with two setup options depending on regular or odd tank shape. Two point calibration for regular shaped tanks (low and full) and five point calibration for odd shaped tanks. FEATURES • Two or five point calibration means you can monitor any shaped tanks. • Solid State micro processor display head means accurate tank readings. • Four inputs so you can monitor up to four tanks/batteries. • Two display modes allow tank info to be read in percentages and litres/gallons/volts or bar graph. • Programmable alarms means alarm when Grey/Black tanks are full or Fresh/Fuel are empty. • 12-24 Volt auto-sensing. SMARTSWITCH OPTIONS - For improved functionality add these Smartswitch options: Supply Voltage: 12 ~ 24 Volts DC (Auto sensing) | Quiescent Current: 12 Milliamps (with backlight off) Backlight | Reverse polarity protected | Network cable length=1000m | Voltage & EMI Protected Data Retention: 50 years (without power). For further information visit: www.smartswitch.