Sunpro 3.5″ Touch Screen Data Logger Manufacturers

Industries Where the DL-35 is Deployed

Indian industrial buyers use the DL-35 wherever a paperless audit trail of temperature, pressure, humidity or flow is required:

• Pharmaceuticals & Bulk Drugs: stability chambers, autoclaves, cleanroom HVAC monitoring, cold-chain validation
• Food & Beverage Processing: pasteurisation cycles, cold storage, bakery ovens, dairy CIP records
• Chemical & Petrochemical Plants: reactor temperatures, distillation column profiles, batch records
• HVAC & Building Management: AHU performance logging, chiller plant monitoring, ducted air balancing
• Industrial Automation & OEMs: integration into test rigs, calibration benches, panel-mount data acquisition
• Power & Renewables: transformer winding temperatures, solar plant environmental logging

Because the DL-35 ships with universal inputs (DC V, DC mA, thermocouple, RTD) on every channel, the same SKU handles most of these applications without channel-specific hardware variants — useful when you are sizing inventory or running multi-site rollouts.

 Why Choose Sunpro Among Data Logger Manufacturers in India

The Indian market has plenty of options — from imported European recorders that ship with 12-week lead times and Euro pricing, to grey-market loggers with no service backing. Sunpro sits in a deliberate middle position:

Designed and built in Pune. Hardware, firmware and the calibration test bench are in-house. We are not a rebadge of a Chinese OEM. This matters when you need a custom range, a specific thermocouple linearisation, or modified communication protocols for a legacy SCADA — we can actually change the firmware.

Stocked locally. Standard configurations ship in [FILL: X] working days from Pune. Imported equivalents typically run 8–12 weeks.

Priced in INR, supported in India. No FX exposure on the PO. After-sales support is direct from our Pune engineering team Data Logger Manufacturers. Service visits across Maharashtra, Gujarat, Karnataka, Tamil Nadu and the wider country are coordinated by us, not by a distributor in another time zone.

Compliant where it matters. The DL-35 records to non-volatile memory with battery-backed real-time clock for power-fail integrity. For regulated environments (pharma, food), pair this with your existing SOPs for 21 CFR Part 11 / GAMP 5 workflow.

Built-in customisation paths. Channel count (8 or 16), optional Ethernet Modbus, optional 24V transmitter supply, expandable relay outputs to 12 — configure to the application instead of forcing the application to fit the logger.

Backed by a full instrumentation portfolio. When the application needs more than logging — Pt100 sensors, pressure transmitters, paper chart backup, weather station hardware — they all come from the same supplier with the same calibration traceability.

 How the DL-35 Compares with Other Sunpro Data Logger Manufacturers

If you need a larger display or higher channel count, look at the 8″ variant. If you are price-sensitive and don’t need a touch interface, the 7-segment LCD model is the entry-level option.

Frequently Asked Questions

What is the Sunpro DL-35 data logger? The DL-35 is a 3.5-inch touch screen paperless data logger manufactured by Sunpro Instruments in Pune. It accepts 8 or 16 universal analog inputs — DC voltage, DC current, thermocouple or RTD — and stores readings in non-volatile memory with optional USB stick offload.

Which industries in India use Sunpro data loggers? Pharmaceutical manufacturing, food and beverage processing, chemical plants, HVAC contractors, OEM machine builders, automotive test labs and environmental monitoring agencies are the most common buyers. The IP65 front panel and wide operating temperature range make the DL-35 suited to both clean and rugged plant environments.

How long can the DL-35 store data? Internal storage is 512 KB. For longer retention, the unit supports a USB memory stick for unlimited archive storage in .txt format. Recording intervals range from 1 sample per second to 1 sample per 10 hours, so storage duration depends on your channel count and sampling rate.

Is the DL-35 difficult to install or operate? No. It is designed for panel mounting with standard cutout dimensions, and the 3.5″ resistive touchscreen handles all setup — channel configuration, alarm thresholds, scaling and display modes. Operators familiar with paper chart recorders find the transition straightforward. Detailed commissioning support is available from our Pune team.

Does Sunpro customise the DL-35 for specific applications? Yes. As one of the data logger manufacturers in India that designs its own firmware, we can adapt channel ranges, sensor linearisations, communication protocols and relay logic to your process. Customisation is quoted against the specific requirement — share your input list, alarm logic and integration target (PLC, SCADA, BMS) and we will revert with a configuration.

Is the DL-35 21 CFR Part 11 ready? The hardware provides the building blocks — secure non-volatile recording, battery-backed clock, audit-friendly data export. Full 21 CFR Part 11 compliance always requires a validated procedural layer at the user end (SOPs, electronic signatures workflow). Contact us if you need configuration guidance for regulated environments.