AC Quality Monitor Express v3
One device. Any AC. 10-minute install.
Designed for Delhi hotels. Validated on Voltas, Daikin, and Blue Star.
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In one paragraph
The Pranetic AC Quality Monitor Express v3 is a magnetic-mount retrofit sensor that measures compressor current, refrigerant pipe temperatures and vibration. It installs on Voltas, Daikin and Blue Star ACs in about 10 minutes per unit, requires no electrician or wiring, and helps Indian hotels predict AC failures and cut HVAC energy use by 15–18%.
The Hotel Manager's Problem (And Our Answer)
You have 50+ AC units. Some rooms are too hot. Some electricity bills are too high. Your engineer spends all day running between units, guessing what's wrong.
You don't need another thermostat. You need a diagnostic tool that tells you exactly which compressor is failing, which unit is low on gas, and which coil is blocked, before your guests complain.
That's what this is.
How does the Pranetic AC sensor actually work?
The Three Things That Kill ACs
| Failure Type | What Happens | How We Detect It |
|---|---|---|
| Electrical | Compressor draws too much or too little current | Current clamp around the power wire |
| Refrigerant | Gas is low or overcharged, cooling stops | Temperature sensors on hot and cold pipes |
| Mechanical | Bearings wear out, mounts loosen, compressor shakes | Vibration sensor on compressor body |
What Makes This Different
| Feature | Typical 'Smart AC Controller' | AC Quality Monitor Express |
|---|---|---|
| What it measures | Room temperature | Compressor current, pipe temps, vibration |
| What it tells you | 'The room is warm' (you knew that) | 'Bearings failing; replace before peak season' |
| Install time | 5 min (plug into wall) | 10 min (clamp, clip, stick; no wiring) |
| Voltas | Yes (any AC) | Yes (tested specifically) |
| Daikin | Yes | Yes (incl. inverter models) |
| Blue Star | Yes | Yes (incl. high-heat discharge) |
Which Indian hotel AC brands does Pranetic work with?
We designed and tested on exactly what you have in your hotel.
Voltas : 1.5 Ton 5-Star, Sacrifice Series
Install: 10 minutes- Found in
- Budget hotels, Paharganj, Karol Bagh, older business hotels
- Our solution
- Spring-loaded clip for the thin discharge pipe (6mm). Magnetic vibration mount for the ribbed compressor casing.
Daikin : FTKM Series, 1.5 Ton
Install: 9 minutes- Found in
- Mid-range hotels, Aerocity, Gurgaon, newly renovated properties
- Our solution
- Torx T15 bit included. Foam insulation cutter included. 200ms firmware averaging for inverter noise. The easiest install of the three.
Blue Star : CNHW Series, 1.5 Ton 3-Star
Install: 11 minutes- Found in
- Business hotels, Connaught Place, older properties
- Our solution
- High-temperature sensors (rated to 150°C). Base plate vibration mount. Power cord current clamp. The most robust install.
Not Sure Which Brand You Have?
Look at the outdoor unit nameplate. Or WhatsApp us a photo; we'll identify it in 30 seconds.
What does the hotel manager dashboard show?
Real-time view on your phone or laptop.
AC QUALITY MONITOR - ROOM 312 (Voltas) ──────────────────────────────────────── STATUS: ✅ HEALTHY Current draw 6.2 A Normal: 5.5–7.0 Discharge temp 72°C Normal: 65–85°C Suction temp 18°C Normal: 15–25°C Vibration 32 mg Normal: 20–50 mg Ambient 38°C (Delhi afternoon) Compressor cycles today: 14 Run time today: 4.2 hours Last alert: None (7 days healthy)
Alerts You Actually Want
| Alert | What It Means | What You Do |
|---|---|---|
| ⚠️ Current 25% above normal for 3h | Dirty condenser or overcharged | Clean outdoor coil. Call technician if persists. |
| ⚠️ Discharge slow to rise; suction <10°C | Low refrigerant | Add gas now before compressor damage. |
| ⚠️ Vibration spike at 247 Hz | Bearings failing | Schedule replacement before peak season. |
| ⚠️ Short cycling: 3 min on, 2 min off | Thermostat or oversized unit | Check thermostat placement. |
| ✅ Room not run for 48 hours | Guest checked out | Turn off at breaker. Save electricity. |
Weekly Report (Emailed Every Monday)
HOTEL GRAND DELHI - AC HEALTH REPORT Week of April 28, 2026 48 units monitored 42 healthy (green) 4 caution (yellow - schedule maintenance) 2 critical (red - action required) CRITICAL: Room 312 (Voltas) Low refrigerant - add gas within 7 days Room 418 (Blue Star) Bearing wear - replace before May ESTIMATED SAVINGS THIS WEEK Preventive maintenance: ₹18,000 Reduced energy: ₹4,500 Total: ₹22,500
How do you install a Pranetic sensor in 10 minutes?
We ship one box per AC unit. Your engineer opens it and finds:
| Item | What It Is | How It Attaches |
|---|---|---|
| Red clamp | Current sensor | Clips around compressor power wire |
| Blue clip | Discharge pipe temp | Spring-loaded: squeeze, place, release |
| Yellow clip | Suction pipe temp | Same as blue, on the cold pipe |
| Green magnet | Vibration sensor | Sticks to compressor casing |
| White box | Main board (ESP32) | Magnets to wall near unit |
| Sticker sheet | Brand-specific guide | Shows where each sensor goes |
Tools needed
One Phillips screwdriver. Everything else is tool-free.
What you do NOT need
- No wire cutting or soldering
- No drilling or epoxy
- No thermal paste or hose clamps
- 1Open panel (1 min)
- 2Apply color dots from sticker sheet (30 sec)
- 3Attach 4 sensors: clamp, blue clip, yellow clip, green magnet (1 min)
- 4Stick junction box, plug sensors in (30 sec)
- 5Route USB-C cable, close panel (2 min)
- 6Stick main board to wall, plug USB-C + power (1 min)
- 7Pair with phone via Bluetooth, enter Wi-Fi password (3 min)
- 8Turn AC on, verify green LED (1 min)
First install: ~15 min · 10th install: ~8 min
How much does Pranetic cost per AC unit?
| Quantity | Per Unit (₹) | Per Unit ($) | Includes |
|---|---|---|---|
| 1–9 units | ₹3,500 | $42 | Full kit + dashboard |
| 10–49 units | ₹3,000 | $36 | Full kit + dashboard + weekly reports |
| 50+ units | ₹2,500 | $30 | Full kit + dashboard + API + on-site training |
- One-time setup fee: ₹5,000 (dashboard configuration)
- No monthly subscription for first 12 months
- After year 1: ₹100/unit/month (optional)
- Payback period: 3–6 months for most hotels
What are the technical specifications?
| Specification | Value |
|---|---|
| Voltage input | 230V AC, 50Hz |
| Power consumption | 0.5W standby, 1.2W active |
| Operating temperature | −10°C to +60°C (main board) |
| Sensors | Current 30A, Temp ×3 (−40 to +150°C), Vibration ±16g |
| Connectivity | Wi-Fi 2.4 GHz, Bluetooth 5.0, USB-C |
| Local storage | microSD 8GB (5 years of data) |
| Data upload | Every 5 min (cloud) or continuous (local) |
| Enclosure rating | IP65 main board, IP54 junction box |
| Warranty | 2 years hardware, 1 year sensors |
For the True HVAC Techies
This section goes deeper. You don't need to read it. But your senior engineer might enjoy it.
What Hotel Managers Say
"First alert caught a low refrigerant issue in Room 312 before the guest complained. Saved us a free night comp and a bad review."
"Having a system that tells me exactly which compressor is failing, in simple language, is a game changer. My electrician installed 5 units in an hour."
"The weekly report goes straight to my WhatsApp. I know which units need attention before peak season. No more guessing."
Next Steps
Try 5 Units (Pilot)
- ₹12,500 for 5 units + dashboard
- 30-min training video call
- Install on most problematic ACs
- Cancel within 30 days for full refund
Free Site Survey
- Engineer visits your hotel (Delhi NCR)
- Identifies your Voltas/Daikin/Blue Star mix
- Fixed-price quote
- No obligation
Just the Spec Sheet
- Full PDF technical specs
- Share with engineering team
- Follow-up in 7 days
- No pressure
Ready to start?
Weekend support available; hotels never close.