- Wireless
- Multi-point
- Temp + humidity
Mindlabs
Mindlabs Anchor
- Range
- -30 to +70°C, 0–100 %RH (probe: -200 to +200°C)
- Accuracy
- ±0.5°C, ±3 %RH
- Connectivity
- 4G CAT-1 + 2G, Wi‑Fi, Mindlabs Cloud
- Use
- Reusable
₹20,000 – ₹24,999
Wireless temperature data loggers
Tzone BT04B Temperature and Humidity Data Logger
₹4,550
Indicative market price. Get a quote for current pricing.
- Price in India
- ₹4,550 (indicative, per unit)
- Best for
- cold rooms, fridges and warehouses with 24/7 alerts, 2–8°C or frozen
- Not for
- dry ice / -80°C
About the Tzone BT04B
The Tzone BT04B is a reusable temperature and humidity logger that records temperature and relative humidity from -25 to +60°C. Tzone specifies the BT04B at ±0.3°C (0 to +60°C), ±0.3 to 0.7°C otherwise accuracy. On the BT04B, humidity is measured from 0 to 85 %RH at ±3 %RH (20 to 80 %RH), ±4 %RH otherwise. Down to -25°C, the BT04B covers 2–8°C fridges as well as -20°C freezers.
Memory holds 12,000 readings, about 125 days of logging at 15-minute steps. Data from the BT04B comes off over Bluetooth.
Physically, the BT04B has a replaceable battery. In practice the Tzone BT04B fits cold rooms, fridges and warehouses with 24/7 alerts, 2–8°C or frozen.
Technical specifications
Overview
| Brand | Tzone |
|---|---|
| Model | BT04B |
| Type | Wireless temperature data loggers, Temperature and humidity data loggers |
| Single-use or reusable | Reusable |
| Indicative price | ₹4,550 |
Measurement
| Logger type | Temperature + Humidity |
|---|---|
| Temperature range | -25 to +60°C |
| Temperature accuracy | ±0.3°C (0 to +60°C), ±0.3 to 0.7°C otherwise |
| Humidity range | 0 to 85 %RH |
| Humidity accuracy | ±3 %RH (20 to 80 %RH), ±4 %RH otherwise |
Recording
| Memory | 12,000 readings |
|---|
Connectivity & reporting
| Interface | Bluetooth |
|---|---|
| Software needed to read report | Not stated by manufacturer |
| 21 CFR Part 11 capable | Not stated by manufacturer |
Power
| Battery | Panasonic CR2450 620 mAh 3 V |
|---|---|
| Replaceable battery | Yes |
| Battery life | 1.5 years (depends on mode) |
Compliance
| EN 12830 certified | Not stated by manufacturer |
|---|---|
| Calibration certificate | Not stated by manufacturer |
More details
| Dimensions | 50 × 50 × 16 mm |
|---|---|
| Weight | 30 g |
| Mounting | Not stated by manufacturer |
| Made in | China |
Specifications from the official Tzone source (opens in a new tab), checked 16 Oct 2026. Confirm with the manufacturer before purchase.
BT04B vs Similar Loggers
| Model | Range | Accuracy | Connectivity | Report | Runtime | Indicative price |
|---|---|---|---|---|---|---|
| Tzone BT04B (this logger) | -25 to +60°C | ±0.3°C (0 to +60°C), ±3 %RH | Bluetooth 4.1, app | — | 1.5 years (depends on mode) | ₹4,550 |
| Tzone BT07 | -10 to +50°C | ±0.5°C | Bluetooth 5.0, app | — | — | ₹3,000 – ₹5,000 |
| Elitech RCW-800W | -40 to +80°C | ±0.5°C | Wi‑Fi, cloud | auto PDF on any PC, no software | — | ₹5,000 – ₹8,000 |
| Mindlabs Anchor | -30 to +70°C | ±0.5°C, ±3 %RH | 4G CAT-1 + 2G, Wi‑Fi, Mindlabs Cloud | live cloud dashboard, PDF/CSV export | — | ₹20,000 – ₹24,999 |
Suggested alternative
A model we supply and recommend for this use.
Request a callback
Get a call back about the Tzone BT04B
Share your number and requirement. We will call with current pricing, delivery time and any other models in our range that suit your application.
By submitting, you agree to our Privacy Policy.
Frequently Asked Questions About the Tzone BT04B
What is the price of Tzone BT04B in India?
The indicative price of the BT04B in India is ₹4,550. The final price depends on quantity, calibration certificate and supplier.
Is Tzone BT04B single-use or reusable?
The BT04B is reusable: it can be reset and used again for more storage periods or trips.
Does Tzone BT04B need software?
Check with the manufacturer or ask us for a quote and we'll confirm.
Can Tzone BT04B be used for -80°C or dry ice?
No. Its range starts at -25°C. For dry ice and -80°C, see probe temperature data loggers.
Similar loggers
More wireless temperature data loggers at a similar indicative price.
- Wireless
Tzone
Tzone BT07
- Range
- -10 to +50°C
- Accuracy
- ±0.5°C
- Connectivity
- Bluetooth 5.0, app
- Use
- Reusable
₹3,000 – ₹5,000indicative
- Wireless
- Temp + humidity
Elitech
Elitech RCW-800W
- Range
- -40 to +80°C, 0–100 %RH
- Accuracy
- ±0.5°C
- Connectivity
- Wi‑Fi, cloud
- Use
- Reusable
₹5,000 – ₹8,000indicative
- Wireless
Tzone
Tzone WF502
- Range
- -55 to +125°C
- Accuracy
- ±0.5°C (-10 to +85°C)
- Connectivity
- Wi-Fi 2.4 GHz
- Use
- Reusable
₹5,000 – ₹8,000indicative
- Wireless
- Temp + humidity
- Server room
Elitech
Elitech RCW-360
- Range
- -40 to +80°C (ext.), 0–99 %RH
- Accuracy
- ±0.5°C, ±5 %RH
- Connectivity
- Wi‑Fi, cloud
- Use
- Reusable
₹6,000 – ₹10,000indicative
- Wireless
G-Tek
G-Tek LM T Pro RF
- Range
- -30 to +60°C
- Accuracy
- ±0.5°C
- Connectivity
- RF 869.88 MHz, gtekNet software
- Use
- Reusable
₹6,000 – ₹10,000indicative
- Wireless
- Multi-point
- Server room
Monnit
Monnit ALTA Wireless Temp
- Range
- -40 to +125°C
- Accuracy
- ±1°C
- Connectivity
- Sub-GHz wireless
- Use
- Reusable
₹6,000 – ₹10,000indicative