UNI-T UT381PV Solar Irradiance Meter with Bluetooth - Tilt Sensor
Main Product FeaturesDual-channel temperature measurement: ambient sensor (T1) and external suction-cup probe (T2)Solar irradiance measurement up to 1400 W/m² (500 Btu/(ft²·h)) for natural and simulated sunlightBuilt-in inclination (-90.0° to +90.0°) and azimuth (0° to 360°) sensors with audiovisual tilt alarmHigh-capacity data logging for up to 12,800 records with adjustable intervals (1 s to 60 min)Bluetooth connectivity up to 100 m range; compatible with the iENV mobile app and UT541 I-V curve analyserRugged outdoor construction featuring an anti-UV housing (F1), IP65 ingress protection, and 2 m drop resistanceAdvanced PV Testing and Commissioning SolutionThe UNI-T UT381PV Solar Irradiance Meter is an indispensable tool designed s
local_shipping FREE SHIPPING Belgium-France-Nederland-Germany on ALL PRODUCTS for 125 € order
Site hosted and secured in Eu.
Packages transported with the service of Bpost, DpD, PostNl or your own carrier.
Defective devices (not electronic components) are (according to the manufacturer's warranty) exchanged or repaired.
Main Product Features
- Dual-channel temperature measurement: ambient sensor (T1) and external suction-cup probe (T2)
- Solar irradiance measurement up to 1400 W/m² (500 Btu/(ft²·h)) for natural and simulated sunlight
- Built-in inclination (-90.0° to +90.0°) and azimuth (0° to 360°) sensors with audiovisual tilt alarm
- High-capacity data logging for up to 12,800 records with adjustable intervals (1 s to 60 min)
- Bluetooth connectivity up to 100 m range; compatible with the iENV mobile app and UT541 I-V curve analyser
- Rugged outdoor construction featuring an anti-UV housing (F1), IP65 ingress protection, and 2 m drop resistance
Advanced PV Testing and Commissioning Solution
The UNI-T UT381PV Solar Irradiance Meter is an indispensable tool designed specifically for photovoltaic installers, field engineers, and quality assurance specialists. Evaluating solar system performance requires accurate environmental inputs, and the UT381PV delivers comprehensive parameters simultaneously. By combining solar irradiance tracking, dual-point temperature readings, and orientation diagnostics into a single handheld unit, it streamlines the verification and commissioning of commercial and residential photovoltaic arrays.
Integrated Multi-Parameter Assessment
Achieving peak power efficiency on photovoltaic panels depends directly on solar irradiance and operating module temperatures. The UT381PV monitors solar radiation up to 1400 W/m² with high precision, catering to both natural outdoor sunlight and indoor testing under simulated solar rays. Its dual-channel temperature system records surrounding air temperature alongside direct module heat via a specialised suction-cup surface probe. Furthermore, the integrated electronic compass and tilt sensor allow users to accurately assess azimuth and panel angle, complete with an audiovisual alarm that notifies technicians immediately if the tilt deviates from the intended configuration.
Reliable Field Performance and European Compliance
Designed for demanding outdoor environments, the instrument features an anti-UV F1-rated housing to safeguard against ultraviolet ageing and cracking under prolonged sun exposure. With an IP65 rating and verified 2-metre drop resistance, the UT381PV stands up to tough building site conditions, rain, and dust. The product provides complete peace of mind, built to ensure safe operation and conforming to EU safety and environmental directives through strict CE compliance and RoHS certification.
Smart Connectivity and Data Workflow
With an integrated Bluetooth module offering a wireless range of up to 100 metres, data collection is effortless. Technicians can connect the device to the iENV app on iOS and Android to view real-time curves, monitor trends, and export professional reports in PDF or CSV formats. The UT381PV can also be integrated directly with the UNI-T UT541 15kW Photovoltaic I-V Curve Analyser, facilitating comprehensive system performance ratio (PR) testing and detailed diagnostic reporting.
Technical Specifications
| Solar Irradiance Range | 0 to 1400 W/m² / 0 to 500 Btu/(ft²·h) |
| Solar Irradiance Resolution & Accuracy | 1 W/m² (1 Btu/(ft²·h)); ±(5.0% rdg + 5 dgts) |
| Temperature Range (°C) | -40°C to 120°C (Resolution: 0.1°C) |
| Temperature Accuracy (°C) | ±1°C (-10°C to 75°C); ±2°C (other ranges) |
| Temperature Range (°F) | -40°F to 248°F (Resolution: 0.2°F / 1°F above 100°F) |
| Temperature Accuracy (°F) | ±2°F (14°F to 167°F); ±4°F (other ranges) |
| Inclination Range & Accuracy | -90.0° to +90.0°; ±1.5° (-50° to +50°), ±2.5° (-85° to -50°, +50° to +85°), ±3.5° (others) |
| Azimuth Range & Accuracy | 0° to 360°; ±7° (Resolution: 1°) |
| Data Storage Capacity | 12,800 datasets |
| Logging Interval | 1 second to 60 minutes |
| Wireless Connectivity | Bluetooth (up to 100 m transmission range) |
| Supported Mobile Software | iENV App (iOS / Android) |
| Ingress & Drop Protection | IP65 rating; 2 m drop tested |
| UV Resistance | Anti-UV housing rating F1 |
| Power Supply | 2 x AA batteries (approx. 95 hours operational life) |
| Auto Power Off | 30 minutes without user operation |
| Operating Environment | -20°C to 60°C; ≤90% RH (non-condensing); altitude ≤2000 m |
| Dimensions & Weight | 201 x 54.2 x 33.7 mm; approx. 212 g (excluding batteries) |
Frequently Asked Questions
What is included in the package?
The UNI-T UT381PV comes with the solar irradiance meter, a suction-cup temperature probe, a solar panel mounting bracket, two AA batteries, a protective cloth bag, a user manual, a safety guide, and a general download operation guide.
Can I monitor solar panel temperature and ambient temperature at the same time?
Yes. The meter features two distinct temperature measurement channels: an integrated ambient sensor (T1) and a detachable suction-cup probe (T2) specifically designed to stick to the back of a solar module, displaying both values simultaneously.
How does the meter transfer data to mobile devices?
The unit features built-in Bluetooth with an unobstructed communication distance of up to 100 metres. You can connect it to the free iENV app to observe live values, configure measurement parameters, and download recorded files in CSV or PDF formats.
Does the UT381PV work with other UNI-T photovoltaic instruments?
Yes, it is designed to seamlessly integrate with the UNI-T UT541 15kW Photovoltaic I-V Curve Analyser, supplying the necessary simultaneous irradiance and temperature data required to perform accurate I-V curve normalisation.
Is the meter suitable for harsh outdoor conditions?
Absolutely. The housing is made with an anti-UV (F1) rating to avoid sun-induced cracking, features IP65 dust and water resistance, and is tested to withstand drops from up to 2 metres.
Returns Policy
You may return most new, unopened items within 10 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- "Excellent products and excellent service." - Josephine
- "Excellent value. High quality products at reasonable prices." - Warren
- "Outstanding customer service." - Jack
- "You're the best! Thank you!" - Tatiana
feedback Signaler le commentaire