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CruzPro T65
Three zone digital temperature gauge with independent high/low alarms for each zone and NMEA 0183 output

Download User's Manual PDF

NEW - Square T65S T65 Three Zone Temperature gauge

Round T65R T65 Three Zone Temperature gauge

CE Certified for Europe

CE Certified

Waterproof front case


Operating Voltage:
9.5 - 33.0 VDC

Current Drain:
0.018 amps nominal

4 digit LCD, red LED backlighting

-20 deg F (-29 deg C) to +140 deg F (+60 deg C)

+/- 1 deg F or C (settable by user)

Standard 10Kohm NTC thermister. Both bronze and plastic senders available separately.

Built-in 85dB alarm, individually settable high and low alarms for each of the three areas.
IF NMEA 0183 serial data is not required, this output terminal may be user programmed as an external alarm output.

Data Output:
NMEA 0183 serial 4800 BAUD, a separate $IIXDR NMEA 0183 sentence for each area

2.5" dia X 4.1" deep (61mm x 104mm)

2-1/8" (55mm) round hole


The CruzPro T65 digital temperature display continuously monitors three separate sensors and displays temperature from -20 deg F (-29 deg C) to +140 deg F. (+60 deg C).

You can simultaneously monitor three zones such as bait tanks, engine room temperature, refrigerators, freezers, sea water temperature, inside cabin temperature, outside temperature, fish holds, battery temperatures, etc.

The units of display is easily selected and individual high and low alarms can be set for each area. When activated, the built-in 85dB alarm buzzer will sound and the display will flash.

The T65 is factory calibrated but can be user calibrated in the field for each individual sensor for spot-on accuracy. All set-up and calibration constants are saved to non-volatile memory. The T65 uses standard 10K NTC thermister temperature sensors (the type most often used in speed/temperature and depth/temperature transducers). Bronze thru-hull, plastic transom mount and zinc plated bolt-on temperature transducers are available separately.

The T65 has variable five-level red backlighting for easy night-time viewing and works on both 12 and 24 VDC systems. The T65 is very easy to install, requiring only a 2-1/8" (55mm) hole saw and screwdriver to connect.

The T65 outputs a separate NMEA 0183 serial data sentences for each temperature zone at 4800 BAUD on rear screw terminal pin "C" (see below). This ASCII information can be used to log performance or repeat the display information at a remote location on the matching CruzPro RP60, RP110 and/or MaxRp110 data repeaters (see www.cruzpro.com/rp60.html, www.cruzpro.com/rp110.html and www.cruzpro.com/maxrp110.html). If NMEA 0183 serial data is not required, then the output terminal can be programmed as an external alarm output pin.

T65 Water Temperature NMEA 0183 sentence examples:

$IIXDR,C,056,C,Z303*17 (Sensor #3)
$IIXDR,C,018,C,Z302*1C (Sensor #2)
$IIXDR,C,-27,C,Z301*0E (Sensor #1)

T65 Connection Diagram

T65 Wiring Diagram

Connecting the CruzPro ER-1 External Relay module to the NMEA 0183/External Alarm Output

Click here to go to ER-1 page
ER-1 External Relay Connection Diagram

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