Synergy Infoware Inc

A bright digital display shows the exact temperature of your fridge, freezer or cold room at a glance. The controller then does the hard work, switching cooling on and off to keep the temperature right where you set it, every hour of the day.

Digital Temperature Indicator Controller

A panel-mounted digital indicator that shows the live temperature of your fridge, freezer, cold room or process in bright red LED digits. With up to two programmable set points and relay outputs, it also switches your cooling or heating equipment on and off keeping the temperature exactly where you want it.

Key Features

Technical Specifications

Model[MODEL NAME]
Input signalRTD (PT-100), Thermocouple J / K, 4–20 mA, VDC
RangeProgrammable
Display4-digit red LED (optional 4½-digit)
Display typeSingle or dual display
Set pointsUp to 2, programmable
Output relays2 NO + 2 NC per set point, 230 V AC, 5 A resistive
RetransmissionIsolated output
Accuracy±0.2% of FSD
Power supply230 V AC, 50 Hz (others on request); 24 V DC excitation
MountingFlush panel mount
Bezel size / depth96 × 96 mm / 100 mm
Panel cutout[__ × __ mm — confirm]
Operating conditions0–50 °C, up to 90% RH (non-condensing)
CertificationCE

Handheld Universal Temperature Indicator

A pocket-friendly digital thermometer that works with RTD (PT-100) and eight types of thermocouple probes. Carry it on your rounds to check fridges, freezers, cold rooms, incoming stock or ovens — and verify the reading of any fixed instrument in seconds.

Key Features

Technical Specifications

Model[MODEL NAME]
RTD inputPT-100, −200 to 600 °C, 0.1 °C resolution
RTD accuracy0.1% (3-wire) ±2 digits
Thermocouple B300 to 1800 °C
Thermocouple E−200 to 1000 °C
Thermocouple J−200 to 1200 °C
Thermocouple K−200 to 1350 °C
Thermocouple N−200 to 1300 °C
Thermocouple R / S−50 to 1750 °C
Thermocouple T−200 to 390 °C
Thermocouple accuracy±0.25% ±2 digits
DisplayRed LED, 7-segment
Sensor offset±12.5 °C
Input filter1 to 10 (moving average)
Power2 × AA batteries, auto power-off

Which product should I choose panel indicator controller or handheld indicator?
Choose the panel indicator controller for a fixed fridge, cold room or machine where you need continuous display and automatic control. Choose the handheld indicator for quick spot checks across many locations.
An indicator only shows the temperature. A controller also switches your cooling or heating equipment on and off to keep it at the value you set. The panel model does both.
Single display shows only the live temperature. Dual display shows the live temperature and set point together useful for control applications.
Yes. Set high or low set points and the relay output can switch an external hooter, lamp or alarm when the limit is crossed.
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