User-replaceable sensors
Pop the cap, swap the calibrated module, re-pair. No truck roll, no service contract, no downtime - anyone on your team can do it in under a minute.
Environmental monitoring, proven
Know every freezer, field and barn is in range - without walking the floor.
CropWatch puts rugged wireless sensors in your coolers, kitchens, greenhouses and poultry houses, then turns every reading into audit-ready proof. No clipboards. No 2 a.m. surprises. No bad data.
- check Pass your next health or HACCP audit
- check Catch a failing cooler before product is lost
- check Swap a sensor yourself in 60 seconds
- check Trust the reading - or the system fails safe
Kitchen Walk-in Cooler3.4 °C · 61 %RH · live
Measurement you can defend 
Why CropWatch
Four reasons buyers in the U.S. switch to CropWatch.
Most monitoring systems make you trust a single sensor, lock you into a technician for every swap, and quietly log numbers that may be wrong. We built ours the opposite way.
ISO/IEC 17025 certified
Every sensor ships with a downloadable calibration certificate tied to its individual serial number - NIST-traceable proof, ready for any inspector.
Dual-sensor verified
Two independent sensors cross-check every reading. If they disagree, the device flags an error and refuses to publish - so bad data never reaches your records.
Self-auditing hardware
The device continuously checks and corrects itself. If anything drifts out of spec, it tells you - instead of silently logging numbers you can't trust.
One dashboard, every location
See every reading the moment it lands.
Live status, history, and alerts for every sensor across every site - on the web, your phone, or pulled straight into a spreadsheet.
Riverside Foods - All locations
18 sensors check_circle 16 in range error 1 alert · 1 faultWalk-in Cooler A
3.4°C
Temp
61%
Humidity
Freezer B - Line 2
−18.6°C
Temp
42%
Humidity
Prep Cooler C
7.9°C
Temp · high
58%
Humidity
Receiving Dock D
gpp_maybe Sensor mismatch - reading withheld
Walk-in Cooler A - 24 h
Temperature · °C · safe band 0-5 °Ccheck_circle
Freezer B back in range −18.6 °C
warning
Prep Cooler C above 5 °C SMS + email sent
gpp_maybe
Dock D sensor mismatch reading withheld
How it's built differently
The details that keep you out of trouble.
01 · Field-serviceable
Swap a sensor yourself - in under a minute.
When a calibrated module reaches end of life, you don't book a technician or ship the unit back. You unclip the old module and snap in a new pre-calibrated one.
- check Pre-calibrated replacement modules - no recalibration on site
- check Tool-free cap; the gateway re-pairs automatically
- check Zero downtime, zero truck rolls, zero service contracts
lock_open
1 · Unclip the captool-free
cached
2 · Swap the modulepre-calibrated
cell_tower
3 · Auto re-pairsback online < 60 s
02 · Provable accuracy
A certificate for every serial number.
Each sensor is calibrated in an ISO/IEC 17025 accredited process and ships with its own NIST-traceable certificate - downloadable any time, matched to the exact device on your wall.
- check Per-serial-number certificates, not a generic batch sheet
- check ±0.3 °C accuracy, traceable to national standards
- check Download the PDF straight from the dashboard for an auditor
workspace_premiumCalibration Certificate
Model CW-AIR-TH
Serial CW-7F3A-29155
Std ISO/IEC 17025
Accuracy ±0.3 °C / ±2 %RH
Trace NIST
download Download PDFSerial CW-7F3A-29155
Std ISO/IEC 17025
Accuracy ±0.3 °C / ±2 %RH
Trace NIST
03 · Fail-safe by design
Two sensors. One verified truth.
Every device carries two independent sensing elements that cross-check each other on every reading. Agree, and the reading is published. Disagree, and the device fails safe - flagging a fault instead of writing a number you can't trust.
- check Dual-element cross-validation on every sample
- check A drifting element is caught before it pollutes your log
- check "No data" beats "wrong data" - every time
check_circle
Sensor A 3.4 °C · Sensor B 3.5 °Cagree → published
gpp_maybe
Sensor A 3.4 °C · Sensor B 6.1 °Cmismatch → reading withheld
04 · Always honest
Hardware that audits itself.
The device runs continuous self-checks on its electronics and power, correcting for known drift and raising a fault the moment anything falls out of spec - so the only readings you ever see are ones the device stands behind.
- check Continuous self-diagnostics and drift correction
- check Battery, link and sensor health reported up front
- check Faults surface as alerts - never hidden in the data
memory
Self-check loopelectronics · power · clock
tune
Auto-corrects known driftstays in spec
charger
Health reported10-yr battery · RSSI
No surprise invoices
The software is included. All of it.
Most platforms charge per seat, per rule, or per export. We don't. Buy the sensors once and the entire platform comes with them.
sentiment_dissatisfied Typical monitoring vendor
- close Per-user license fees as your team grows
- close Caps on alert rules and notification recipients
- close API and integrations behind a higher tier
- close Report exports metered or paywalled
- close Technician required for every sensor swap
Included
verified CropWatch
- check Unlimited users - invite your whole team and auditors
- check Unlimited alert rules & recipients (SMS, email, webhook)
- check Full public API access for Excel, Sheets & BI
- check Unlimited scheduled & on-demand reports
- check Swap your own sensors - no service contract
groupUnlimited usersWhole team + auditorsNo per-seat fees
notifications_activeUnlimited rulesSMS · email · webhookIncluded
apiFull APIapi.cropwatch.ioIncluded
summarizeUnlimited reportsScheduled & PDFIncluded
Where CropWatch works
One platform for everything that has to stay in range.
From a hospital pharmacy fridge to an open field, the same rugged devices and the same dashboard cover it.
restaurantRestaurantsCoolers, freezers, prep lines hotelHotels & hospitalityKitchens, banquet, bars schoolSchools & universitiesCafeterias, labs, dining local_hospitalHospitals & pharmaVaccine & medication fridges warehouseCold storage & warehousingWalk-ins, blast freezers groceryGrocery & food retailDisplay cases, back-of-house agricultureFarming & agricultureField, soil & canopy ecoGreenhousesClimate & humidity eggPoultryBroiler & layer houses petsLivestock & dairyBarn & shed climate factoryFood manufacturingProcess & storage local_shippingDistribution & logisticsDocks & reefers
Battery life
10 yr
User-replaceable cells. No wiring, no gateways to babysit.
Accuracy
±0.8 °F
NIST-traceable, ISO/IEC 17025 calibrated - defensible in an audit.
Range
5 miles
LoRaWAN coverage from a single gateway across a whole site.
Bad readings logged
0
Dual-sensor verification means wrong data never reaches your records.
Ready when you are
See your own coolers on the dashboard this week.
Tell us what you need to keep in range. We'll map the sensors, gateways, and alerts - and show you the audit trail it produces.