Watchman with external Probe
Suitable for kitchens, pools, refrigerators, storage, underground, walking coolers, freezers, tech rooms etc. Please note that it does NOT provide humidity readings (only temperature readings).
- 1meter or 3meter probe cable length options
Probe is 4mm in thickness. We also offer option of ribbon cable (2mm thick) - that works better when running cable over refrigerator/freezer door seals. There is no price difference, however ribbon cable only comes in 3meter length.
Probe is water resistant and can be used in hot tubs and pools. To extend the longevity of the probe (when used in water, such as pool), we recommend applying a thin layer of silicon (at the tail end where rubber meets the metal end). This will avoid any water seep into probe and extend it's life for years. The base unit needs to be at a dry place.
Offers a measurement range from -40F to 170F. Please ensure that base unit is protected from direct sunlight and at temperature from 0F to 150F.
Works with your existing 2.4G WiFi router. There is gateway option ($20) in case you are looking for an easy plug-and-play setup or prefer not to share your WiFi credentials with watchman. It is available on Buy Watchman page.
- Alerts if temperature or humidity fall outside of specified parameters. Email alert to your login email are free. Text alerts requires subscription.
- Data logs are available on pp-Code portal, access via web or App (Android / iPhone) 6-days history (28-days with subscription)
- Hourly logs (15-min with subscription)
- If there is a sudden change in temperature, it does not wait for next log cycle. It sends the log immediately (click here for details) - to ensure the safety of your assets
- For details on features (standard as well as with subscription), click here for details
Watchman with 2-Probes
Watchman with 2-Probes
Watchman with 2-Probes
Shown here is 2-Probes at 3meter length
Watchman with 2-Probes
Watchman with 2-Probes
Side View
Watchman with 2-Probes
Watchman with 3-Probes
Display shows reading of 2 probes
Watchman with 3-Probes
Watchman with 3-Probes
Watchman with 3-Probes
Shown here is 3-Probes at 1meter length
Watchman with 3-Probes
Side View
Watchman with 3-Probes
Display shows reading of 3 probes
Watchman with Ribbon Cable
Watchman with Ribbon Cable
Watchman with Ribbon Cable
Only 2mm thick (whereas black round cable is 4mm thick). Comes in 3meter length. Suitable to run over refrigerator/freezers door seals
Watchman with Ribbon Cable
Watchman with Ribbon Cable
2-Probes using ribbon cables (3meters each)
Watchman with Ribbon Cable
3-Probes using ribbon cables (3meters each)
External Probe buffered with Glycol (an Add-On)
If you plan to use external probe Watchman to monitor temperature of refrigerators / freezers, you may observe significant variation in temperatures reads (up to +/-15F) with defrost cycle.
We offer an option where you can order your external probe to be fitted in 15ml glass vial filled with food-grade glycol. Glycol provides a buffer and probe reads an accurate temperature of the contents (in cold storage). With out such buffer, probe shows a higher variation (than the actual) in temperature of the contents, as refrigerator / freezer cycles through the defrost.
CDC recommends using buffered probes as temperature monitoring for medicine and vaccine storage.
On Buy Watchman page, you have an option to purchase this add-on for $8 per probe.
Watchman for pool/spa probes (10k NTC Thermistor)
This Watchman type is programmed to work with 10k NTC Thermistor temperature probes commonly used for pools and spas. The resistance of the thermistor probe changes with temperature. The software on the Watchman measures the changes in the resistance (of thermistor probe) and calculates the temperature. The product is rated to function correctly between 50F to 120F. If exposed to temperatures outside the qualified range (i.e. 50F to 120F), the temperature readings may be off by +/-5F.
We have tested the Watchman with the following thermistor probes.
- Generic Temperature Sensor Replacement for Hayward® - Replaces GLX-PC-12-KIT®
- AR-PRO 520272 Air/Water/Solar Temperature Sensor with 20-Feet Cable Replacement Pool/Spa
Though all 10k thermistor probes are designed to function the same way, feel free to contact us (at tech@pp-code.com) for questions related to specific make/model of your 10k thermistor probe.
Same features as "Watchman with external probe" (no humidity reading)
Watchman does NOT come with a thermistor probe. You will connect probe of your choice to Watchman using the 2-wire connector on the side of the enclosure. There is no requirement to match polarity or color as you connect. Simply connect two wires (of the probe) to Watchman's 2-wire connector in any order. Please ensure that Watchman is not plugged-in while you are making the connections.
Watchman with K-Type Thermocouple MAX6675
Suitable for BBQ, ovens etc. This watchman uses MAX6675 module that that performs cold-junction compensation and digitizes K-Thermocouple outputs. It can read temperature range from 32F to 1875F (accuracy may vary by 5% for temperature above 1300F). Please ensure that base unit is protected from direct sunlight and at temperature from 0F to 150F. It comes with a 14-in long Thermocouple that you can easily replace at you own per your needs.
Same feature set as "Watchman with external Probe" (no humidity readings)
Watchman with K-Type Thermocouple MAX31855
Suitable for freezers, BBQ, ovens etc. This watchman uses MAX31855 module that that performs cold-junction compensation and digitizes K-Thermocouple outputs. It can read temperature range from -300F to 1300F (accuracy may vary by 5% for extreme temperatures). Please ensure that base unit is protected from direct sunlight and at temperature from 0F to 150F. It comes with a 14-in long Thermocouple that you can easily replace at you own per your needs.
Same feature set as "Watchman with external Probe" (no humidity readings)